MakerFarm Pegasus Lead Screw Mounts

thingiverse

These brackets are designed to mount 8mm lead screws to the MakerFarm Pegasus. I have the 10" version with metal motor mounts and X-carriage, so I haven't been able to test it on other sizes, but looking at pictures it should work fine. I'd be interested to hear feedback though. I originally purchased the ACME Lead Screw Upgrade kit from Colin at MakerFarm but there were a few things I didn't like about it: The provided nut blocks are very snug and don't spin easily, even after over a month of use and running it through a drill as recommended. The Pegasus' X-axis extrusions aren't log enough to mount the nut blocks correctly without the awkward and frustrating extensions. The nut blocks are mounted so low on the X-axis that they nearly hit the motor coupler when the Z-axis is at Z0. This caused some weird Z ringing at lower print heights on my printer since it's hard to get the lead screws perfectly vertical. This mod uses 8mm brass lead screw nuts to try and fix all of the above. I used these, but there are tons just like it on Amazon and eBay. If your printer is still using 5mm threaded rods you can still upgrade to lead screws using this mod, you'll just need to source the following: 8mm lead screws and nuts (I recommend ~400mm for the 10" Pegasus) 8mm to 5mm flexible coupler It'll probably end up being cheaper than purchasing the MakerFarm kit. Print Settings Rafts: No Supports: No Resolution: .2mm Infill: 50+% Post-Printing Assembly The lead screw nuts mount to the bracket using 3x3mm bolts with a lock nut. The bracket mounts to the top of the x-axis vslot rail using 2x5mm bolts and 2x t-slot nuts. Keep them loose until you left the lead screw perfectly and then tighten them down. Note: I had to swap the direction of the bolts on the delrin wheels that hold the x-axis to the z-axis. I probably just did this wrong when I built it, but you may run into it as well.