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21-12-2018 #1
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21-12-2018 #2
I think they make an excellent garage ornament , as that is pretty much all they are right now.
Motors them selves appear quite well constructed. Seals on every joint etc. Bearings all feel nice. Keyed shaft is well machined. Drives appear well constructed too.
My only real gripe, is the 25 pin D connector that is on CN3.
It will have 3 or 4 different cable going to it eventually (including a shielded catb7 I think, for the encoder feedback).
Let you know more when my 24V PSU arrives.
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21-12-2018 #3
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27-12-2018 #4
What control are you going with?
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27-12-2018 #5
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03-01-2019 #6
Hi,
So Centroid ordered, looking at motor options. DMM do a Nema 42 replacement that has the correct shaft length and diameter which helps (roughly 50mm and 5/8th inch) - how are you dealing with pulleys and mounting options for your new motors?
The DMM stuff is pricy too, so looking at options.
Thanks
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04-01-2019 #7
Had 2 different thoughts on pulleys. ( but that's all they are right now.)
A) Make a shaft extension piece and stick original gear on the
end. ( quick & simple, but depends on length)
B) Make a new gear with an extended boss.
( seems a more engineered solution, but more expensive
and a lot more time to machine from solid. Also I would
have to make a single tooth form tool. Fortunately I already
have a H/V rotary table with dividing plates)
Sickeningly, this would be a great job for the 4/5 axis machine that I hope to end up with ,but isn't that always the way!
Re mounting, my servo motors have a stupid raised boss on the front face. Going to turns this off in the lathe.
X & Y axis should be OK with a flat face.
Z AXIS mounting plate is part of main head casting and has a circular pocket machined in to accept the old SEM motor. ( no way I am stripping that lot off to mess with. Thinking of just making an exact size disk to drop into pocket to level out the surface. Then bolt motor straight on.
The bolt pattern on new motors is a little larger, so just thought of rotation the bodies 45°, marking and drilling a new PCD to suit.Last edited by swarf-boy; 04-01-2019 at 12:18 AM.
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21-08-2020 #8
Hi Planning to up grade my Bridge port soon
Planning on using this and my old motors
Upgrading encoders
https://www.centroidcnc.com/centroid...ontroller.html
Any recommendations.
Thanks Anthony
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