FT-5 Y-Idler Bracket variations

thingiverse

Bracket to replace parts FT3, FT26, and optionally the ends of FT17 and FT18 while also allowing room to add some 2028 corner brackets for additional structural rigidity. Uses standard skateboard bearings (608ZZ). Can either be used with the bearings and idler pulley that came with the FT5, or cut an 8mm rod to length and upgrade to a pulley with an 8mm bore. If you use the stock idler stack, you'll need to remove one or both of the spacers. I removed both of the 3mm spacers and replaced them with 1.5mm. You technically could just remove either the top or the bottom one, but it's currently untested this way. It is a very tight fit if you put the 2028 brackets in first. I recommend putting the Y-idler in place first, then add the 2028 brackets. Update 11 Apr 2017: I've added 3 new variations of the Y-Idler bracket. Two without the spacing for the 2028 brackets, and one with the spacing for the 2028 brackets plus an additional M5 hole for peace of mind when fully removing Parts FT17 and FT18. You will need to print a mirror of each of these to make the set. I've also updated the hole spacing on the original design to allow for a better fit. Update 22 Feb 2019: I've finally gotten back around to revamping the FT5 R1. There are some new Y-Motor Mount brackets to go with these idlers. Update 23 Feb 2019: Adjusted the spacing on the holes by 1mm (from 49mm to 50mm). This allows for an exact 30mm between the rails. Increased thickness to 6.5mm to allow for a tight M5x10 without bottoming out on the 2020 rail. Decreased the size of the bearing housing by 0.25mm because it was a bit too loose. Update 24 Feb 2019: 6.5mm thickness was slightly too much. Reduced to 5.5mm so the M5x10 gets full thread contact on the T-nuts. Print Settings Printer: Folgertech FT-5 Rafts: Doesn't Matter Supports: Yes Resolution: .2 layer height Infill: 75%