# Bill of Materials ## expand\_more This section will give a list of items that are used in this project with selected links to suppliers. You can download a more detailed Bill of Materials sheet [here](http://srt.seas.harvard.edu/files/sorotoolkit/files/bom_egain.xlsx). **Note:** Many of the items listed are just examples and you can use your own discretion to substitute parts which are easier or cheaper to obtain. SortMold Components ![mold_top.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__720x720_scale/public/sorotoolkit/files/mold_top.jpg?itok=zeYBDxm0) ![mold_acrylic_transparency.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/mold_acrylic_transparency.jpg?itok=XcT4GlNP) Top Mold Acryllic plate and Transparency film ![mold_bottom.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/mold_bottom.jpg?itok=ZG7cQHP2) Bottom mold (mold, top plate and transparency shown) [Click here](/files/srt_egain3dprinterfiles.zip) to download the .STL files needed to 3D print the molds for this sensor. [Click here](/files/srt_egainlasercutterfiles.zip) to download the .DXF files needed to laser cut the transparencies and plates. If you would like to modify the molds [click here](/files/srt_egainmold_0.zip) to download the SolidWorks part files. SortPolymer Materials ![bom-1.png](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-1.png?itok=ASOaOnhw) ![bom-2.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-2.jpg?itok=WHupbwgH) ![bom-3.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__100x100_scale/public/sorotoolkit/files/bom-3.jpg?itok=1-2XjhQ1) Soft silicone rubber ([EcoFlex 0030](http://www.smooth-on.com/Silicone-Rubber-an/c2_1115_1130/index.html), Shore OO-30 hardness, E = 30 kPa) ([Supplier link](http://www.smooth-on.com/Silicone-Rubber-an/c2_1115_1130/index.html)) Stiff silicone rubber ([SORTA Clear 40](http://www.smooth-on.com/Silicone-Rubber-an/c2_1115_1134/index.html), Shore A-40 hardness, E = 1.3 MPa) ([Supplier link](http://www.smooth-on.com/Silicone-Rubber-an/c2_1115_1134/index.html)) Mold Release ([Ease Release 200](http://www.smooth-on.com/Release-Agents-and/c9_1123_1226/index.html) works well) ([Supplier link](http://www.smooth-on.com/Release-Agents-and/c9_1123_1226/index.html)) SortOther Materials ![bom-4.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-4.jpg?itok=-2qfeKVI) ![bom-5.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-5.jpg?itok=peiurns_) ![bom-16.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-16.jpg?itok=lvoNmCKF) Velcro material, Loop 3008 type\* ([Suggested suppliers](http://www.velcro.com/business/Company/Authorized-Distributors.aspx)) Eutectic indium gallium alloy (EGaIn). Need ~100 uL per sensor though it depends on channel geometry. ([Supplier link](http://www.sigmaaldrich.com/catalog/product/aldrich/495425?lang=en®ion=US)) [Silpoxy](http://www.smooth-on.com/Silicone-Rubber-an/c2_1128_1268/index.html) silicone adhesive ([Supplier link](http://www.smooth-on.com/Silicone-Rubber-an/c2_1128_1268/index.html)) ![bom-15.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-15.jpg?itok=PemmDJLe) ![bom-14.png](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-14.png?itok=RxeTfh1h) Transparency film ([Supplier link](http://solutions.3m.com/wps/portal/3M/en_US/Meetings/Home/Products/Transparency_Film/)) Acrylic (1/4" thick) ([Supplier link](http://www.mcmaster.com/#8505k91/=snviix)) \*Type selected because it is very thin (low profile) SortTools & Hardware ![bom-7.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-7.jpg?itok=saAGZXkc) ![bom-8.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-8.jpg?itok=9MXZfnxr) ![bom-6.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-6.jpg?itok=OiCPYY-b) Tongue Depressors Tweezers Weights ![bom-18.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-18.jpg?itok=ZyEvsIiD) ![bom-19.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-19.jpg?itok=S1XYCZ5E) ![bom-20.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-20.jpg?itok=qmEILAnf) 2 small syringes (1.5-3 mL) ([Supplier link](http://www.medical-and-lab-supplies.com/syringes-needles/syringes-with-needles/3ml-syringes-with-needles/3ml-27g-x-1-25-exel-100ct.html)) 2 needles (27 gauge) ([Supplier link](http://www.medical-and-lab-supplies.com/syringes-needles/syringes-with-needles/3ml-syringes-with-needles/3ml-27g-x-1-25-exel-100ct.html)) Electrical wire\*\* ([Supplier link](http://www.mcmaster.com/#9510t1/=sypbqn)) ![bom-17.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-17.jpg?itok=PlcpvdQs) Wire Strippers \*\*Smaller diameter is better. Here we use 36 AWG copper wire. SortEquipment ![image44](/sites/g/files/omnuum4601/files/2024-11/image44.png) ![bom-9.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-9.jpg?itok=u-wDYbio) ![image36](/sites/g/files/omnuum4601/files/2024-11/image36.png) Vacuum chamber ([Supplier link](http://www.avac.com/economy-vacuum-chamber-systems-vacuum-p-39.html)) Laser cutter ([Supplier link](http://www.epiloglaser.com/products/legend-laser-series.htm)) Mass scale ([Supplier link](http://www.mcmaster.com/#1863t61/=szo1b3)) ![oven](/sites/g/files/omnuum4601/files/2024-11/oven.png) ![thinky](/sites/g/files/omnuum4601/files/2024-11/thinky.jpg) ![00_0](/sites/g/files/omnuum4601/files/2024-11/00_0.png) Lab oven ([Supplier link](http://www.fishersci.com/ecomm/servlet/itemdetail?storeId=10652&langId=-1&catalogId=-1&productId=2080238&distype=0&hasPromo=0)) Centrifugal mixer ([Supplier link](http://www.thinkyusa.com/products/item-all/rotation-revolution-mixer/are-310.html)) Mixing cups ![bom-10.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-10.jpg?itok=KcVHjCdb) ![bom-11.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-11.jpg?itok=I37QcwM5) ![bom-12.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-12.jpg?itok=OWKTrM2q) 3D Printer\*\*\* ([Supplier link](http://www.stratasys.com/3d-printers/design-series/precision/objet-connex500)) Spin-coater ([Supplier link](http://www.sigmaaldrich.com/catalog/product/aldrich/z551562?lang=en®ion=US)) Multimeter ([Supplier link](http://en-us.fluke.com/products/digital-multimeters/fluke-83v-digital-multimeter.html)) ![bom-13.jpg](/sites/g/files/omnuum4601/files/styles/hwp_1_1__360x360_scale/public/sorotoolkit/files/bom-13.jpg?itok=vEkQYAU8) Microscope (optional) ([Supplier link](http://www.mcmaster.com/#22005a21/=sys401)) \*\*\*Minimum need 10x better than dimensions of your structure. i.e. object spatial res. On micron level, but smallest features are 100 microns. Same for FDM. Aim for few hundred microns wide/tall --- Attachments- [ list\_alt EGaIn Detailed BOM.xlsx ](/sites/g/files/omnuum4601/files/sorotoolkit/files/bom_egain.xlsx) - [ snippet\_folder srt\_egain3dprinterfiles.zip ](/sites/g/files/omnuum4601/files/2024-11/srt_egain3dprinterfiles.zip) - [ snippet\_folder srt\_egainlasercutterfiles.zip ](/sites/g/files/omnuum4601/files/2024-11/srt_egainlasercutterfiles.zip) - [ snippet\_folder srt\_egainmold\_0.zip ](/sites/g/files/omnuum4601/files/2024-11/srt_egainmold_0.zip) ---