Flyingbear P902 Z axis brackets and motor mounts by hi_im_sean

Last crawled date: 3 years, 1 month ago

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.