Pulse XE Custom Parts
This time I used a raft without an air gap.
I decided it was time to replace the Y-axis idler pulley. I don't want to remove it without a replacement, I can see that the bearings are already worn. The pulley on there now is a 6mm wide with a 3mm bearing ID. I want to get a little better pulley.
These are 9mm pulleys. The one on the left is Chinese made. The one on the right is made by Gates.
Gates uses a 5mm ID high quality bearing. These will last for years without maintenance.
But there is no way the Gates will fit in the original pulley bracket...
**Note: I have modified my X-axis belt tension slider to accept the larger Gates pulley. I will have to order new stainless steel 5mm x 16mm shafts.
I modified the bracket. It didn't need to be wider, but it did need to be taller. Also the base seemed to be overly thick. I increased the height of the bracket by 5mm, then removed 5mm of material from the base. Increased hole openings from 3mm to 5mm.
The finished part looks good. I will have to wait for my new pulleys to come in to test.
I have modified the back plate a little, shortened it added rigidity across the top. I will need to redesign a little and make sure it mounts up to the pulse hotend mount. I may add the new hotswap mount.
This mounts to the MGN 9 and MGN 7 Rail bearings.
thwclw last edited by
What will be left that's original?
Looks like you are using your Pulse to replace itself.
Great post by the way.
Csenior10 last edited by Csenior10
@tinken this is just the part I've been looking for. is it possible to get the STL or a link for it from you? Have you finished your MGN 9 rail conversion? I'm really interested in the performance of this upgrade.
Edit: To clarify, I'm interested in the STL for the Y axis pulley bracket for the 9mm Gates pulley
@csenior10 Sure I will upload it to Thingiverse or Prusaprinters as time permits. I am currently working on new BLtouch armor files. This is something I think is very important for the Pulse.
Csenior10 last edited by
@tinken you rock!!! Thank you. sounds great. I cant wait to see the BL Touch mod
Upper Left & Right brackets. Red isn't really my thing, but the "Ice" look is pretty cool (no pun intended).
I designed and I am testing a new hotend mount that is more robust than the original and allows you to tighten the top nut with a socket. Added material prevents plastic drooping towards BLtouch side, while keeping wire hole. I have added a center hole for BLtouch needle removal without disassembly. Fan cooling can be added if wanted, I never print PLA so this not needed for me.