Flyingbear P902 Z axis brackets and motor mounts

thingiverse

Work in progress! Z axis bracketry for the flying bear, I will do a few versions and update as I design and test them. 2/28/17- Bottom Z axis bracket for pancake stepper and custom bearing housing: This is untested, but I dont think the flying bear Z stepper motor needs much of any torque. So I got a pancake stepper for my titan and decided to order another and try it on the Z axis. It is 15mm shorter which will give you 15mm more Z height (dont forget to enable in firmware!), and has 18.5 oz in of torque, compared to the stock bear 30 oz in. part number : 17HS08-1004S http://www.omc-stepperonline.com/nema-17-bipolar-step-motor-35v-1a-13ncm184ozin-17hs081004s-p-101.html The motor shaft will have to be shortened, you can cut it with a dremel. You will also need to get an extra stepper motor harness or cut and splice into the existing one, as its only a few inches long and un-terminated. The bracket design also does away with the stock style bottom bracket, so the motor sits directly on the extrusion, which will give you another 3mm of Z height. 2 versions- FB_Z_bottom_brkt_for_pancake_and_bearing_hsng_FINAL is to be used with a custom made bearing flange block that I machined to hold the Z lead screw with an 8mm ID ball bearing. 99% probably wont use this. Ill upload a picture later. FB_Z_bottom_brkt_for_pancake_FINAL is for the vast majority of users. The motor slides in the bottom, and is attached with the 4 screws. The bracket then bolts in like the stock pieces. Print Settings Printer: Flyingbear P902 Rafts: Doesn't Matter Supports: Doesn't Matter Resolution: 0.15-0.3 Infill: 20-40% Notes: You must print this with a bed temperature below the glass transition of your filament to avoid warping. ABS will require an enclosure to get acceptable results in my opinion (simply wrapping the bear in cardboard will do). Aquanet, 4mm brim, and 205/50 gave me a very nice and flat PLA print. Normally printed upside down, use supports if printed right side up.