Lever for Operant Chamber

thingiverse

Lever for the Operant Conditioning Chamber. First look at the Operant Conditioning Chamber: https://www.thingiverse.com/thing:1226076 Print the parts using PLA, a non-toxic material that's recommended because of its excellent properties. A layer height of 0.2 mm is perfect, while most parts can be printed with a 20% fill density. However, "bumper.stl" requires 100% fill density for optimal results. No support material is necessary. You will need the following materials: 1 Stainless steel metal plate (gauge no. 16). Using a stainless steel lever protects against rats chewing through the mechanism. If this isn't an issue in your application, you could print the "Lever.stl" file and use a PLA lever. Consider having a CNC cutter service create a custom steel plate for you according to the dimensions found in Plate.zip. 1 Snap action switch designed specifically to hold a Honeywell 311SM4-T switch. This precision switch was used during calibration and can be sourced from Mouser Electronics (part # 785-311SM4-T) at www.mouser.com. 2 – # 4 x 1/2 in. Metal Flat Phillips Screw for attaching the switch section to the lever enclosure. 1 M3 x 20 mm Brass Threaded Stand-Off Hex Screw Pillars with Nut for securely holding the metal lever in place. 6 M3 x 10 mm Screws, where two screws keep the lever attached to the chamber panel and three more are used for adjusting and limiting the lever's movement. E6000 Glue for attaching the "bumper.stl" part to the actual lever. Follow the images provided to assemble the lever. Three-dimensional printed parts appear blue, metal parts are white, screws are black, and the switch is brown. Print Settings Printer Brand: Robo 3D Printer: R1 PLA Model Rafts: Doesn't Matter Supports: No Resolution: 0.2 mm Infill: 20%