6-Speed Automatic Transmission

thingiverse

Download the files from http://www.thingiverse.com/thing:1094616. Scale up the parts above 150% except for P2_Sun_P3_Sun, which should be scaled to 149%. Print all parts at 100% accuracy. Some components require supports during printing. To assemble this project, you will need the following materials: 4 mm shafts - two pieces measuring about 185 mm and one piece measuring approximately 220 mm 18 gauge brads - five pieces measuring 5/8" long self-tapping screws - #4 measuring 1/2" and 3/4" set screws and nuts - #6 measuring about 1/4" extension springs - 13/64" and 13/16" from Harbor Freight Item # 67562 small eye screws You will also need a Gear Motor, which can be purchased on Amazon at https://www.amazon.com/gp/product/B01KTZXZDE/ref=oh_aui_detailpage_o05_s00?ie=UTF8&psc=1. Additionally, you will require a Motor Speed Control Switch Controller from Amazon at https://www.amazon.com/gp/product/B019H4DDIA/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1. For power, use a 12V 2.5A AC-DC Adapter from Radio Shack Item # 273-318 or a similar product, or connect it directly to a 12V battery. To assemble the PWM Controller Housing, you will need to stretch it according to the instructions at http://www.thingiverse.com/thing:1958914. Before starting the assembly process, make sure to clean up all the printed parts. For assembling the transmission: 1. Put C2 Clutch Fork in Case before putting C2 Clutch Slider in Case. 2. Put C1 Clutch Fork in Case before putting C1 Clutch Slider in Case. 3. Place a long bushing between the rear of the case and the clutch button. 4. Install short bushings between the clutch buttons. 5. Drill holes in the case for springs. When looking at the front of the transmission, the large gear should rotate clockwise. Print Settings: Printer: PowerSpec 3D Pro Rafts: No Supports: Yes Resolution: 0.2 Infill: 25%