.....and another Heavy one!! :) 🇬🇧
Hey guys,
For those who've seen this post before, skip to the end: I'm starting a NEMA 23 upgrade! 😁👍
Technically, my CNC isn't new. I completed it a month or so ago and have been tinkering and trying to make it better and more rigid.
Profiles are 1000mm by 1000mm and I have 820mm by 790mm of workable surface.
Running off an Arduino Uno + CNC Shield + Raspberri Pi running CNC js, which I can run and send gcode to from any browser/device connected to my Wifi network.
I also made some changes to the router holder assembly to make it more rigid. Didn't have the original models, so made them from scratch in F360 using Thomas' printed models for reference.
Also changed the top of the gantry in order to get rid of the GT2 belt and run the Z-Axis lead screw directly off the Nema17. With the original design, my motor kept slightly budging forward under the pull of the belt. If anyone is interested, I can share the model. It's pretty much plug-and-play.
On to my question: I opted to use these collet extensions for the makita in order to get all the way down to my work surface without having to prop up my stocks when milling. However, I'm getting a LOT of oscillation and vibration due to the 1 1/2" length they're are adding. If I could get a 1" extension, that would probablty fix the issue. Problem is, I haven't been able to find one at all. It does seem that @Topsie is using a shorter one that could work for me. Could anyone direct me to it?
Cheers!
JR
Thanks! Yours has the all-powerful NEMA 23s though, heheh. I'll have to get that done too eventually. 👍
BTW Thomas, did you get more milling abilty with the NEMA 23s? In addition to faster X/Y movement, are you able to get wider stepover and deeper layers per pass (on multiple passes)?
Bonsoir Jean Michel, looking at a similar spoil board setup. Did you use T nut inserts on the back of the board (hammered) or regular inserts from the top? I'm still weighing those 2 options as I'm wondering if the MDF will hold regular inserts overtime.
I'm using screwed inserts from the top into the MDF and it holds really well and I have no long term concerns whatsoever. FYI, they are M8 inserts in 12mm holes. They are sunk in leaving a 4 mm gap to the surface of the board, therefore leaving plenty of room for multiple spoilboard surfacing passes before you have to screw them further down. I say go fot it!
Ok then! You are on a 50mm grid?
Yep! 50mm grid, M8 inserts on 100 mm intervals, dowel holes for the rest. I don't use m4 inserts anymore. More detail on that in the beginning of this post.
Hey guys,
Time to upgrade to NEMA 23! 🤘😁🤘
Strip down started...
StepperOnline NEMA 23 Kit (ignore the other bit and bobs)
Printed upgrade parts
More to come as I progress 😁
Cheers,
JR
Also made a modified spindle holder that allows me to lodge the nuts into the part and avoid messing around with a monkey wrench when screwing the front holder in/out.
I'll post the design to Thingiverse and the design forum soon...
Cheers,
JR
An another 3D connexion space mouse Fan i see....
Hell yeah! Wouldn't know what to do without it at this point. I'd quit modeling, lol...