Pulse XE Custom Parts
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This time I used a raft without an air gap.
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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.
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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.
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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.
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Dang!
What will be left that's original?
Looks like you are using your Pulse to replace itself.
Great post by the way.
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@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
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@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.
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@tinken you rock!!! Thank you. sounds great. I cant wait to see the BL Touch mod
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Upper Left & Right brackets. Red isn't really my thing, but the "Ice" look is pretty cool (no pun intended).
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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.
