I have the exact same PSU. Will you please share your printing files? parametric if possible.
My main concern is safety, as I do not have much experience with electrical systems.
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I bought a 500W brushless that just arrived.
The sleeve-design in this post doesn’t quite fit this one, so I need to re-design it to support 55mm diameter and wider screw holes. Is that ok with you @md8n?
The package also contained V-Cutters and Milling Cutters. They range from 0.8mm to 3.175mm and they all have 3.175mm shafts.
I didn’t catch that as I ordered. The only collet that came with the spindle is ER16-10mm.
Anyone with experience that can say how usable they would be with the Maslow?
For milling and engraving smaller parts at slow speeds I guess they could work fine? However, I can’t see them being usable for large format use?
I would need to order new collets if I was to use them anyway.
I have a lot of 8 and 10mm router bits already.
I could order ER16-8 so I can use them also, but is it advisable to go for ER20 and 13mm bits instead?
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Yep, go ahead and remix
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It’s a simple mod to the classic because someone much smarter than I added the support into the firmware. I don’t think the M4 supports it yet.
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Since the inner sleeve has slots that can let air pass along the body of the spindle, I am planning to design a new fan that covers the whole top og the spindle and sleeves. The original “fan” on the spindle I got has straight blades. It will do something to the air around it when it spins, but changing the blades so that they push air into the slots of the inner sleeve would do much more to cool the whole spindle.
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It actually should be just a setting in the maslow.yaml file. FluidNC supports all different types of spindles and lasers and whatnot that can be configured in the maslow.yaml file, no programing needed 
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Report on the Outer Sleeve
So I noticed that there seemed to be more play, than what I would like, between the arms and the outer sleeve.
Today one of the arms was jamming up, so I needed to pull the machine apart to sort it out, and that seemed like an ideal time to check out the outer sleeve as well.
Here’s how it looks
From the top
That ‘dirty’ patch is where the top clamp presses against it.
From the bottom
The compression indicated with the red mark, and that black smudge, was where the bottom clamp, next to the thumb hole, was squeezing in on it.
The yellow mark indicates where the bottom left arm had squeezed it in.
And the green mark indicates where the top right had squeezed it.
This sleeve was made from PLA - so it seems that’s just not strong enough for the task.
Measuring it again I’d say that I made it around 0.8 ~ 1.0 mm smaller than it should have been. ie. the outer diameter.
So I’ve done a fresh version, in PETG, and 0.6mm bigger OD.
M4_SpindleSleeveOuter.stp (42.5 KB)
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Full story over here, for a new dust port - Alternate dust port design - Hardware / Sled - Maslow CNC Forums
But here’s the picture
full M4-RouterBeGone beauty shot in glorious black and “MAKE MY EYES BLEED” Yellow PETG
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This updated wedge is really part of this thread as well. With being able to not have a router comes the option to swap other things in and out, which in turn requires fiddling with the clamps and clamp wedges a lot
Clamp Wedge Just Couldn’t Take It No More - Troubleshooting - Maslow CNC Forums
And here’s the step file for the clamp wedge. Note that you will need to use your slicing software to pause the 3d print at the correct layer to insert the nut.
ClampWedge.stp (184.9 KB)
Hi @md8n, thank you so much for your designs and for sharing your files.
What are you printing your stp files with? I’m relying on a very helpful friend who has a Prusa but we’re having some trouble with the supports. Did you need to print a lot of the supports and do you have any tips of which orientations of the sleeves will be the best way to print?
Is the outer sleeve printed solid or does it have a honeycomb or such structure?
Thanks very much again and thanks for sharing the improvements that you make.
I’m using a BambuLabs X1 Carbon, with AMS. And I’m using the BambuStudio as my slicer instead of OrcaSlicer.
None of my designs need supports, but they all require reorienting them to put the best side on the bed. Having said that, they may require brims, especially the clamp wedge because it is so small, or they may come out a little meh without the supports, because no support.
So the first thing you should do with them is to reorient them to get the best face down (on the bed).
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thanks for the help.