https://www.sandeshmanik.com/projects daily 0.75 2026-03-31 https://www.sandeshmanik.com/projects/spectrum monthly 0.5 2026-03-31 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1f374ef3-0e42-4439-ab09-b6df1534e314/paint+vs+spray.jpg Projects - Spectrum - Make it stand out Comparison: making orange with red and yellow regular paint vs spray paint. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1738204333705-P6JJ4843FFQJL7QZUSET/Spectrum+Thumb+New.jpeg Projects - Spectrum - Make it stand out Spectrum, and its sprayed out colors. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/492e86b3-3d55-4773-b587-f490620782b4/passive+micromixer.jpg Projects - Spectrum - Make it stand out One-way-flow micro-mixing channel https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/bad50d73-bb69-4afa-bb65-a9a259ca11cd/spectrum+keynote+presentation.gif Projects - Spectrum - Make it stand out Stop-motion animation depicting pulse-based micro-mixing https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/a8e0955b-79df-4599-add4-6f498bd472b9/water+purifier+valve.jpg Projects - Spectrum - Make it stand out The modified water-purifier solenoid valves with 3-D printed fillers and connectors https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/52030cd1-d450-4e42-bbc1-32fd07ce57e9/rotary+valve+final+animation.gif Projects - Spectrum - Make it stand out Pinching mechanism, combined with a spring for a normally-closed design. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/2a4cba4b-0b62-4d1b-a559-a3f321c8a456/rotary+valve+spring+stop.gif Projects - Spectrum - Make it stand out Spring holds the lever back by default, making the valve normally closed. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/fc275540-37de-45d6-9631-40688509da36/PaintFlowsystem+%281%29.png Projects - Spectrum - Make it stand out Spectrum’s system overview https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1d21c43d-e3f1-46ec-93ff-a56d55509723/silicone-tubing.png Projects - Spectrum - Make it stand out The Paint Pipeline with connectors https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/bbd9db7b-24fe-4a38-b597-1b00b8b8afbe/connectors.png Projects - Spectrum - Make it stand out 3D printed connectors https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1d9f8132-d70a-4434-93e9-da061fef4941/togglemechanism.gif Projects - Spectrum - Make it stand out Toggle mechanism for paint intake and emergency shut-off https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/5f664c24-5e42-4ff2-ac7a-c49d8b0a7047/toggle_lever_picture.png Projects - Spectrum - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/032220a1-47e9-442c-a882-c657c7074246/Spectrum+Controls+%281%29.png Projects - Spectrum - Make it stand out Spectrum Controls Overview https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/a4d13a50-3fa1-42f4-a9c7-f0a4469ec20f/spectrum+app.png Projects - Spectrum - Make it stand out Earlier Spectrum App https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/defc4b88-5921-4c98-9267-eb92cc73f09c/controls.jpg Projects - Spectrum - Make it stand out Simple interface with dials and system status screen; Spray colors created by Spectrum https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/902febe8-5c66-48de-9467-8cc227adcffc/gradient.jpg Projects - Spectrum - Make it stand out Force-sensing nozzle (left) and color gradient sprayed out (right) https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/7ae99da1-d25a-4ca6-93fc-792335f8d0b4/All+Prototype+pictures.jpg Projects - Spectrum - Make it stand out Failed Prototype 1, 2, 3, and 4! https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/6bb96520-dbfe-4fa9-b724-c5b8f4e75f48/protto+failure.jpg Projects - Spectrum - Make it stand out Prototype 4 (left) that took months to build. And then it broke a minute after turning it on (right). :( https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/09a7cd81-50ac-41f4-8ad5-3955e83621cb/paintspill-1024x548.jpg Projects - Spectrum - Make it stand out When prototype 3 failed, I seriously considered quitting. But then I noticed these colors on the ground from a paint spill—beautiful shades created from just basic colors mixing naturally. Somehow, seeing this accidental masterpiece gave me the push to keep going. :) https://www.sandeshmanik.com/projects/rotary-pinch-valve monthly 0.5 2026-02-14 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1738204333705-P6JJ4843FFQJL7QZUSET/Spectrum+Thumb+New.jpeg Projects - Inventing a Valve - Make it stand out Spectrum, a breakthrough multicolor spray paint machine https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/e6ea150c-e412-4a22-80a3-825315dd4e2c/rotary+valve+animation+keynote.gif Projects - Inventing a Valve - Make it stand out Rotary-Pinch Valve: Basic Mechanism https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/2a4cba4b-0b62-4d1b-a559-a3f321c8a456/rotary+valve+spring+stop.gif Projects - Inventing a Valve - Make it stand out Spring holds the lever back by default, making the valve normally closed. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/52030cd1-d450-4e42-bbc1-32fd07ce57e9/rotary+valve+final+animation.gif Projects - Inventing a Valve - Make it stand out Rotary-Pinch valve mechanism with a spring for a normally-closed design. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/4425af55-e9f3-437a-88d2-e77d7127ad1d/rotary+valve+gif.gif Projects - Inventing a Valve - Make it stand out Limit switch for closing-feedback https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/6d276ca8-9958-4316-8c12-17df058f1faa/spring+balance+diagram.001.jpeg Projects - Inventing a Valve - Make it stand out Setup Diagram https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/4b69d699-d2be-4c15-b06c-eaf9ecb15ad8/PXL_20210307_222715465.jpg Projects - Inventing a Valve - Make it stand out Actual 3-D printed setup https://www.sandeshmanik.com/projects/google-x monthly 0.5 2026-02-16 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/b8564679-7c4a-4789-af25-e0e889f814d8/Screenshot+2026-01-30+at+3.43.40%E2%80%AFPM.png Projects - Building at Google X - Make it stand out Courtesy: X website https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/8e20ce30-a9ac-45a7-b83f-b870140ff861/DB285D96-126F-44AF-8BA5-D526498A94F5.JPG Projects - Building at Google X - Make it stand out My red carpet moment at X's 'Hackademy Awards.' https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/b8f2fea0-1fe4-4129-844d-4764e20c16be/edr+robot.jpg Projects - Building at Google X - Make it stand out The Everyday Robot: Courtesy: X website https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/26300b07-0b07-414d-be30-21db52f6d90c/gripper.jpg Projects - Building at Google X - Make it stand out First generation Everyday Robot Gripper. Courtesy: NYT article https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/c67423cc-3fab-44e4-be77-523fe46088ab/gripper+tactile+sensing.gif Projects - Building at Google X - Make it stand out Different modalities of tactile sensing. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/16fe6633-fd0a-4322-8b7c-7348f11b32d6/taaracover.png Projects - Building at Google X - Make it stand out Taara Modules Deployed Courtesy: Google X Website https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/d6c4c73b-30a7-4538-8842-2b96651df276/taara+lightbridge+gif.gif Projects - Building at Google X - Make it stand out Taara’s Beam Pointing and Tracking System. Courtesy: Google X Website https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/6e254c6c-bdc6-4def-893f-d03fdf33fa35/taara+test+platform.png Projects - Building at Google X - Make it stand out Laser-Steering Hardware Testing Platform https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/8c97c680-fccf-46f9-8a5b-f27a5009cd6c/cellToPlant.png Projects - Building at Google X - Make it stand out Going from one electro-chemical reaction-cell to an industrial chemical production plant https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1d1ffa49-7313-4a53-bd83-acf6544d1400/cell+visuals.png Projects - Building at Google X - Make it stand out Real-Time Cell-Reaction Visualization https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/b82d3eba-e1d2-4247-8d40-41f0d82385b4/cellToPlant+%281%29.png Projects - Building at Google X - Make it stand out Life-Cycle & Performance Testbed https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/ea1a752b-6b84-43eb-9b9a-dee13bcae64e/aquila_team.png Projects - Building at Google X - Make it stand out Courtesy: Google X Instagram https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1f6f7651-e3d7-4d44-b197-2d9706991d88/googlexheadshot.jpeg Projects - Building at Google X - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sandeshmanik.com/projects/blog-post-title-three-fkr5a monthly 0.5 2026-02-14 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/648b9a2f-048f-403f-90bf-995c718f5cae/Screenshot+2024-07-24+at+2.17.05%E2%80%AFPM.png Projects - The Big Picture - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/d4b571f4-3989-40ff-baf2-687091ae59a7/PXL_20210409_221642557-scaled.jpg Projects - The Big Picture - Make it stand out Mirrors on Nema 17 Motors https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/3601320e-a184-4933-a381-a132b15be662/PXL_20210409_221815865-scaled.jpg Projects - The Big Picture - Make it stand out 3D printed Mirror Mounts https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/a0f93dea-e742-4192-a6e1-dae52063f7b1/Screenshot+2024-07-24+at+2.25.54%E2%80%AFPM.png Projects - The Big Picture - Make it stand out Front view of the plane being projected on https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/4729669c-7491-42ae-8e53-6e64f61d51ea/Screenshot+2024-07-24+at+2.26.28%E2%80%AFPM.png Projects - The Big Picture - Make it stand out Side view of the plane being projected on https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/104db940-c3ce-4362-b5a0-79ca39f37e24/Screenshot+2024-07-24+at+2.44.02%E2%80%AFPM.png Projects - The Big Picture - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/e54da647-8f31-43cb-b03d-66e1bf976f02/Screenshot+2024-07-24+at+2.43.49%E2%80%AFPM.png Projects - The Big Picture - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/dace15ff-47c9-47c8-88cb-8fc622a461c4/future+art+3.png Projects - The Big Picture - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/3d795984-e53b-4a9d-ad07-fac67a7a0a9b/future+art+2.png Projects - The Big Picture - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/00f4897a-cb0d-41c7-a0e9-8bfb85110032/future+art+1.png Projects - The Big Picture - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sandeshmanik.com/projects/ivf-simulator monthly 0.5 2026-02-14 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/676bff05-5302-4c73-a549-c59da61525cc/6211c323363c352eefc5c44c_sandeshmanik.project2.fig1.jpeg Projects - IVF Simulator - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1746751e-040b-4837-96f1-9dfcf4096046/6211c3230b30e58fa7ef07da_sandeshmanik.project2.fig2.jpeg Projects - IVF Simulator - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/4f3d7edc-a327-4107-ae8b-22d5582f924d/6211c323defcc04dd90c2c87_sandeshmanik.project2.fig3.png Projects - IVF Simulator - Variable Friction The knob has an inner teflon ring that is meshed to a teflon ring base because teflon slips easily. The knob-ring’s downward force can be controlled by a mechanism with screws, that helps set the desired friction for rotation. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/cb91e395-4393-4642-9a9c-9a1e9238be96/6211c3235b76a9434b1d8896_sandeshmanik.project2.fig4.png Projects - IVF Simulator - Variable Inertia The inside of the knobs has removable weights, to adjust the rotational inertia as desired. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/7efa0951-1149-4502-b42b-9c38ecc026e2/6211c32398b536a83d759f23_sandeshmanik.project2.fig5.png Projects - IVF Simulator - Simulator Elements Imagery The simulation imagery is derived from real IVF microscope footage (YouTube Video). Different elements in the footage, like the egg in various stages and micropipette, are separated individually on Photoshop. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/f085dcbc-226a-434e-ba29-1d5b1015295b/6211c32398b5360818759f24_sandeshmanik.project2.fig6-p-1080.png Projects - IVF Simulator - GUI Programming Using the imagery as individual elements for the simulation, the simulator is built on Python using the Tkinter GUI builder. This simulation is controlled in real-time by turning the knobs on the hardware controller. https://www.sandeshmanik.com/projects/molding-plastic-at-home monthly 0.5 2026-02-11 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/028cd6b9-93d3-46d0-bb92-67f331018c30/ender+3.jpg Projects - Molding Plastic at Home - Make it stand out Excellent 3D printers cost less than $150 these days https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/b5758e9c-00c9-423c-8f28-b04f52098dc7/desktopIM.jpg Projects - Molding Plastic at Home - Make it stand out A desktop injection molding machine https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/916013fb-b9b4-4d69-8ec8-4b3abf01fe8d/molding_thumbnail.jpg Projects - Molding Plastic at Home - Make it stand out HDPE molded at home https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/fba11bb7-6ed8-4030-801a-a901eb12226d/hdpe+cartons.jpg Projects - Molding Plastic at Home - Make it stand out Household containers made of HDPE https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/8a12efc2-5886-4b84-a704-728c8ef02c7c/making+the+patterns.png Projects - Molding Plastic at Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/092fcc9e-d9d1-4584-b72d-395e19b7941a/patternexample.jpg Projects - Molding Plastic at Home - Make it stand out A 3D printed pattern. (This was an SLA print, hence the transparent color. You can use any printer for th) https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/0b857633-2f12-4eab-996f-7dfbccad6002/pouring+plaster.jpg Projects - Molding Plastic at Home - Make it stand out Pouring plaster into the patter https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/bdeebc95-cff2-4118-ba21-2b6bbaf7c321/making+the+molds.png Projects - Molding Plastic at Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/9a8a810e-4e32-4ecc-b10a-aa353bc58018/finished+plaster+mold.jpg Projects - Molding Plastic at Home - Make it stand out Plaster molds after setting https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/ca39e97c-042c-464f-b06d-c45d2a125ee2/shredded+plastic.png Projects - Molding Plastic at Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/0b097b6c-f912-4e24-90f9-c3a559190acb/melting.png Projects - Molding Plastic at Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/2eff656f-4cea-4b90-b44e-014f362f28d3/fusing.png Projects - Molding Plastic at Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/92e25847-79d6-4808-88bd-117d45c6125e/pullingpart.png Projects - Molding Plastic at Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/f8fc6b08-d2d8-44f7-afd8-8ddfb51c1fdc/finished+part.jpg Projects - Molding Plastic at Home - Make it stand out The pulled out unfinished part https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/ee775c76-918e-482b-b792-37d0b4888881/resin+molds.jpg Projects - Molding Plastic at Home - Make it stand out Packing the resin molds https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/7b68b57f-a5c1-49d3-af39-b8784db490ff/resin+mold+breaking.jpg Projects - Molding Plastic at Home - Make it stand out The part got molded successfully but the mold broke https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/916013fb-b9b4-4d69-8ec8-4b3abf01fe8d/molding_thumbnail.jpg Projects - Molding Plastic at Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sandeshmanik.com/projects/laser-touch monthly 0.5 2026-02-14 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/e794680b-6eb4-4e08-86f0-812cf3560c64/Project+Maker.png Projects - Laser Touch - Make it stand out Illustration https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/db76157a-8ae9-439a-89d9-062c942cfd61/620dfdf4813513817ce03d26_sandeshmanik.project1.fig2.jpg Projects - Laser Touch A transparent panel is the touch surface, with laser beams above it, and photo-sensors below it. When the surface is touched, the beam is obstructed and diffused at the touch-spot, which is picked up by the photodiode and the touch is mapped to the photo diode’s location. While the laser beam is common, each photodiode is separated by a dividing wall such that the diffusion is not picked up by neighboring photo diodes much, to make the mapping more accurate. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1684124068848-J21GIKEN7AI9F2NUVK5V/620e1150ee22186742227184_sandeshmanik.project1.fig6-p-1600.jpeg Projects - Laser Touch https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1684124068788-U7VJ987BIAO0IL089GO5/620e1151dbe90123564957e8_sandeshmanik.project1.fig5-p-800.jpeg Projects - Laser Touch https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1684124069594-PI0YSDVV8WW3VQW4KA1Z/620e1151ddcf2bbdd2969d0a_sandeshmanik.project1.fig4-p-800.jpeg Projects - Laser Touch https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/1684124069760-7VETHFBUBQUKOZF3N40I/620e1151790a3687c7fbdf47_sandeshmanik.project1.fig3-p-1600.jpeg Projects - Laser Touch https://www.sandeshmanik.com/projects/intuitive-control-gurney monthly 0.5 2026-02-14 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/c0223648-1a5c-4639-b919-844a58aa2e31/New-Doc-2019-11-12-18.52.38-Page-1-1024x481.jpg Projects - Intuitive-Control Gurney - Make it stand out Feels just like pushing an empty shopping cart. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/66e62e59-6686-4f45-a45f-102bd4ce4d06/Screenshot+2024-08-01+at+12.33.38%E2%80%AFAM.png Projects - Intuitive-Control Gurney - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/a42d7d0e-d80b-4e09-8c07-d55754a3ba4e/Screenshot+2024-08-01+at+12.36.05%E2%80%AFAM.png Projects - Intuitive-Control Gurney - Make it stand out Force Sensing Mechanism https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/0d48a255-d74c-4c96-b2bc-049bd0f5b702/MacBook_Pro_14_2.gif Projects - Intuitive-Control Gurney - Make it stand out The application of force by two hands on the 6 force sensors. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/6cb899e0-62ea-475b-892d-b459d9e4ed38/Screenshot+2024-08-01+at+12.56.25%E2%80%AFAM.png Projects - Intuitive-Control Gurney - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/afe765b6-77e8-4c9f-96b3-d4753065b24d/vlcsnap-2020-01-06-20h22m27s044.png Projects - Intuitive-Control Gurney - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/55c12f19-bf92-4df1-999b-9570aac4cd46/vlcsnap-2020-01-06-20h22m38s762.png Projects - Intuitive-Control Gurney - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/f65d6b2e-1a3f-470b-b820-ff44186ad2c6/Screenshot+2024-08-01+at+1.17.48%E2%80%AFAM.png Projects - Intuitive-Control Gurney - Make it stand out Rotation about the center of the handle is intuitive. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/5d991fb0-1e9e-46bc-b7b0-cb9edf4a868c/IMG_20160321_200838123.jpg Projects - Intuitive-Control Gurney - Make it stand out Assembling the Force Sensing Mechanism, way past bedtime… https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/9806f06f-ec9c-48af-8a4f-987fa8e68624/InkedIMG_20151215_145017784_HDR_LI.jpg Projects - Intuitive-Control Gurney - Make it stand out An earlier prototype https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/088ae079-01ab-4844-9263-f3dd3f08d228/75266.jpg Projects - Intuitive-Control Gurney - Make it stand out Explaining the earlier prototype to Josh Radnor?! https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/2a7c0585-6628-47c5-a23d-657dfccb7831/inkmakers.jpg Projects - Intuitive-Control Gurney - Make it stand out Winning a cheque in a tech competition! https://www.sandeshmanik.com/projects/hacking-a-vintage-lens monthly 0.5 2025-01-30 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/3c534405-7525-4dca-9597-5be574c37af3/Pentax-q5swxz30htkri97bl0l1d6ue13t2zx62i1d1ekzbb4.jpg Projects - Hacking a Vintage Lens - Make it stand out Pentax K1000 with a 50 mm prime lens. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/b6076abe-a97c-432d-a975-e3381521e7b5/sandesh+3+year+old.jpeg Projects - Hacking a Vintage Lens - Make it stand out That’s me, in 1997, clicked by the Pentax camera. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/4eb1c75a-116e-4361-abe9-023b1017377c/Snapchat-627555601-q5swxz30htkri97bl0l1d6ue13t2zx62i1d1ekzbb4.jpg Projects - Hacking a Vintage Lens - Make it stand out All the lens elements laid down to be cleaned. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/6152a372-a846-465e-881a-1c6aa1c572c0/IMG_20170709_163102-1024x1024.jpg Projects - Hacking a Vintage Lens - Make it stand out The steel ring is the K mount adapter https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/6358bbb5-8f51-4edc-a4d9-5e1ea4551a6c/IMG_20170917_194637-1024x1024.jpg Projects - Hacking a Vintage Lens - I could not find CAD files of mounts online This meant spending a lot of time in carefully measuring the mount dimensions with callipers. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/c8d7b967-fcf4-4ede-8923-fc4275e1b18a/camera+mount+diagram.png Projects - Hacking a Vintage Lens - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/b2be27ae-b3fd-4448-a175-3b2e665778f6/IMG_20170923_191321-1021x1024.jpg Projects - Hacking a Vintage Lens - Make it stand out 3D printed F mount Adapter https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/a6cef9d8-ce8a-4fb0-aa74-4492f4157ab5/IMG_20170923_191748-1024x1024.jpg Projects - Hacking a Vintage Lens - Make it stand out Old lens, new camera! https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/9f9f9577-781a-4206-8a93-766f55ff8a5f/DSC_1063.jpg Projects - Hacking a Vintage Lens - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/c76e14b9-ec86-47f0-aef4-e5ab5cbaf27d/DSC_1064.jpg Projects - Hacking a Vintage Lens - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/094f604d-023f-475c-b4b9-c849275ec41c/DSC_1065.jpg Projects - Hacking a Vintage Lens - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sandeshmanik.com/projects/a-moon-toilet monthly 0.5 2026-02-14 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/3c6a32b3-1c1a-4058-93e5-b2c7a68d7e4f/Screenshot-41-1536x864.png Projects - A Moon-Toilet - Make it stand out I designed a compact space-toilet concept with features that make going to the toilet effortless, clean, and safe, for the astronauts in the Artemis moon-landers. The following sections explain each feature in detail: https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/8694c1f1-add6-488c-8e68-7ff910e130e0/0004-1536x981.jpg Projects - A Moon-Toilet Sensing: Arrays of infrared proximity sensors near the bowl to determine the exact position of the astronaut’s bottom. Guidance: 4 haptic vibrators are embedded in the toilet seat to guide the astronauts to center themselves on the toilet seat—by making them shift themselves in four directions: up, down, left, and right to center themselves. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/65546e4c-bb0b-49c6-a745-e238803a9335/Picture2.jpg Projects - A Moon-Toilet Coandă effect: the tendency of a fluid jet to stay attached to a convex surface. Hence all the air blown by the jets follows the bowl’s surface and goes into the toilet pipe, taking any waste that touches the surface Bernoulli effect: When the speed of a moving fluid increases, the pressure within the fluid decreases. Hence, the air jets on the sides create low air pressure neat the surface and the inlet pipe due to the Bernoulli effect, which also aids in directing waste downwards. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/5c9123b3-2ddb-4706-991d-3a2da8017ae0/0009-1536x1033.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/bd1acf31-3862-4a03-b5be-6f1fcbcaac04/00090-1536x1067.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/9501dfa7-95ae-4449-9e51-a9cc648d3da0/0010-1536x1190.jpg Projects - A Moon-Toilet The waste collection bags are designed to keep the sludge securely contained inside them at all times, making use of the surface tension of water. Each bag can accommodate the waste from two crew members for a whole day. This is how they do it: https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/3700e3fb-a0b3-466f-903a-04204f9037e5/Picture3.jpg Projects - A Moon-Toilet Using Water Surface Tension to trap waste Due to the high surface tension of water, solids and liquids that come in contact with it, stick to it in the absence of larger external forces like gravity. The waste collection bags make use of this principle to secure the waste inside. The bag is coated with hydrophobic film on all the inner sides except for the bottom, where it is intended to be trapped. A cellulose (hydrophilic) sheet is stuck to the bottom. A tiny layer of water-based liquid is filled in, that only sticks to cellulose sheet. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/fd8353ae-6077-4ad6-997b-1edc561ff9d1/0012-1536x1063.jpg Projects - A Moon-Toilet The bag is sealed to the waste-inlet of the toilet bowl and the gas-exhaust using elastic bands. As the solids and liquids keeps coming in through the toilet throughout the day, it keeps sticking to the bottom layer of liquid, and the sludge keeps growing upwards https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/cbb1e0c9-6723-4101-8729-79a6131f3dbf/0015.0-1536x862.jpg Projects - A Moon-Toilet - Fan The other end of the waste bag is connected to the gas exhaust port, which has a low-power fan always running to guide the air to pass through its filters. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/237f2f0e-3e37-4217-a925-710722ff9720/0015-1536x862.jpg Projects - A Moon-Toilet - Filters The exhaust has two filters: an active carbon filter to block odorous gases like Hydrogen Sulphide, and a graphene membrane to block flammable gases like methane, that is generated by human waste. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/37311400-2fa4-4a7b-b90b-d363ac0a09bc/0016.0-1536x988+%281%29.jpg Projects - A Moon-Toilet The bacteria in the faecal matter, urine, and vomit, are broken down throughout the day by organic active enzymes; this ensures that the gas producing bacteria are not kept alive for long, and the entire sludge is completely stabilized and odor-free when kept in storage. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/23870d8e-a8f2-4ace-be10-153bd4b7812f/0016-1536x1088.jpg Projects - A Moon-Toilet These enzymes stored in a tank inside, are pumped and sprayed on the sludge throughout the day, through an atomizing nozzle at the center of the gas exhaust’s entrance. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/34f2f553-281b-46db-89d0-38d5e6b11b93/tank2.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/237608ec-bb2b-4e37-becd-3dc9f443b670/0017-1536x859.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/f1f5acb4-2667-4b76-8393-314a01ad85da/0013.0-1536x1180.jpg Projects - A Moon-Toilet Inside the Loo-Nar, the bag rests on a removable tray, that supports its from all sides as the sludge keeps increasing. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/9aa8ab4f-7970-4b47-ada2-2aa4172c2616/0013-1536x1092.jpg Projects - A Moon-Toilet When the day ends, the openings are sealed with the plastic sealers that come attached to the bag, and the tray is taken out. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/db44eead-9d53-42b4-8b6c-9987d54efb89/rendering_keyshotscene.171-1536x959.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/97298351-f128-4ef9-95e5-7d9a8017d469/Picture4.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/224a4acd-75ee-4072-bf35-479bbf6be45d/untitled.176.jpg Projects - A Moon-Toilet The toilet seat of the Loo-Nar, along with all its components, rest on a 6061 aluminium alloy structure. This structure makes it easily withstand the weight of astronauts by distributing the stress, while keeping the overall weight low. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/a93f159a-4f79-4de3-81de-bfa1db16d125/displacementdiagram.jpg Projects - A Moon-Toilet When a 132 KG (290 lbs) astronaut puts their entire weight on the toilet seat in the lunar gravity, the structure only gets displaced by a maximum distance of 2.5 millimetre. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/02e6eed1-5e9c-4e6c-89a8-a557d00570db/rendering_keyshotscene.158.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/c1208f95-4c06-44bb-89b3-7c8e7c6782d3/0006-1536x882.jpg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/4758ff1b-583f-4b4d-9e8c-964cfd7d48ec/0007-1536x1158.jpg Projects - A Moon-Toilet Disposable polyethene covers help astronauts easily puke into the toilet hygienically, without sticking their heads into the toilet bowl. One end of the cover is open for the astronaut’s head to stick in, while the other end latches on to the inner rim of the toilet bowl with an elastic band. These covers create a sealed pathway between the mouth and the toilet bowl. Once used, it can be simply pushed into the toilet for disposal. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/f6d96c02-c981-4510-87a9-b0346c6c85e8/rendering_keyshotscene.156-1536x1231.jpg Projects - A Moon-Toilet The device is encased in a rigid ABS polycarbonate case, that makes sure components like the waste bag are not pierced accidentally by external objects. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/eb04b1c2-6cac-4408-921f-5784666a640e/rendering_keyshotscene.152-1536x864.jpg Projects - A Moon-Toilet When not operational, the toilet lid which has a rubber ring, is closed to seal off the waste chamber and prevent any odor from escaping before it gets treated by the enzymes or reaches the exhaust. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/7f0dc082-5341-4243-9691-ed08788ae79a/interface.jpeg Projects - A Moon-Toilet Power Saver: Since Lunar gravity does provide a downward force for the waste, the air-jets in the guidance system can be reduced or stopped to save power. Flush; After usage, the flush button is used to release the antibacterial cleaning liquid. https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/14377ce8-3b70-4485-bfa7-2d1508b5be77/specs+final.jpeg Projects - A Moon-Toilet - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.sandeshmanik.com/home daily 1.0 2026-02-14 https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/a9b195c7-157a-4e48-8643-444cb957d8f4/2W9A4920_Original+3.jpg https://images.squarespace-cdn.com/content/v1/63bbb3a0fac6b23f3a6f390a/0733d0ba-1ef1-41f1-9de7-560bcc5a35bc/journey+collage+%281%29.jpg