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DC Spindle (RC Based)

Posted: Mon Apr 09, 2012 6:46 pm
by edwardrford
A couple of notes on the spindle front:
1.) I still have the RC spindle (http://www.buildlog.net/blog/2011/09/n ... -spindle/) in my basement. It's actually further away from being mounted now that I've moved my test rig to the garage. Although,
I would have never run the DC spindle in the basement, so maybe in that
respect it's closer?

2.) I have a new mount for the CNConabudget.com spindle that I've been
itching to try out (it was 3D printed on an ORDbot from black ABS). it
brings the bit a lot closer to hte extrusion. That fact mixed with the
alternate mount configuration (lead nut moved to the side as shown in one
of the previous pictures on the forum) means the Z axis is A LOT stiffer
than it's ever been. I had ordered a rigid coupler (5mm to 8mm) so I could
test out that config but I don't think it's going to work. The OD is too
big for the space. I have another in mind bud haven't ordered it yet. I
might try to make one instead.

3.) I picked up a Dewalt
DW660<http://www.amazon.com/DEWALT-DW660-Cut- ... 1W...>from
amazon the other day for about $60. It came with both 1/8" and 1/4"
collets and reminds me a lot of the rotozip I use to have. But, it's about
1/3 the weight as my old rotozip. I've drawn up another u=shaped mount
(similiar to the UHMW mount I use for the dremel) and I just need to cut it
out so I can mount the Dewalt. It's wicked strong (5A!) and noise wise it's
no louder than my knockoff dremel. It's a little bulky, so I'm not sure if
it'll work or not, but for now that's moved itself up to 2nd on the list of
things to try.

I like the RC spindle idea a lot, but as I've said in previous posts,
there's a ton of wiring that goes along with it and some fixed assets that
will have to be designed into the mount itself (ie ESC)

As it is, I have two Shapeokos in my garage but neither of them are fully
functional. The one is the alternate design (with the side plates running
hte wrong way) and that isn't solid enough to cut with. And the other I
have taken apart in order to mount up the drive shaft style dual drive
system discussed on another thread. Which reminds me... I need to get back
to work on that :-)

-Edward

Re: DC Spindle (RC Based)

Posted: Mon Apr 09, 2012 10:51 pm
by nogthree
Just a note, I'm collecting the parts for this to try it out. I had hoped Edward would be the guinea pig but I guess I will be :)

Will post once I've got the parts and started assembling.

Re: DC Spindle (RC Based)

Posted: Tue Apr 10, 2012 1:18 am
by edwardrford
@nogthree: Do you have the shaft part yet? I have a spare. email me if you need/want it.

-Edward

Re: DC Spindle (RC Based)

Posted: Tue Apr 10, 2012 1:45 am
by nogthree
Already ordered an ER11 shaft and collet set like Bart had, but I appreciate the offer all the same :)

I picked up what appears to be an unbranded version of the motor Bart was using too.

I've got some foibles to sort out on the belt drive on my ShapeOko but the frame for this and a new belt tensioning setup are the first two things I intend to mill.

DC Spindle (RC Based)

Posted: Thu Apr 19, 2012 10:28 am
by calica
I might be interested.

Re: DC Spindle (RC Based)

Posted: Sat Apr 21, 2012 5:03 am
by MLange
Hmm. What about something like this? Would that work?

Re: DC Spindle (RC Based)

Posted: Wed Apr 25, 2012 12:17 am
by calica
MLange wrote:Hmm. What about something like this? Would that work?
No specs so really can't tell.

Re: DC Spindle (RC Based)

Posted: Wed Apr 25, 2012 1:31 am
by sea2stars
This may help.

NC5475E

Re: DC Spindle (RC Based)

Posted: Wed Apr 25, 2012 2:39 am
by calica
Helps a lot.

Peak Power is 32.46 Watts and 13.7W continuous. That isn't very powerful.

I'm planning on using something similar to this. 12V. 179 Watts. 16k RPM. This is for a PCB milling setup. I also have easy access to a few.

Re: DC Spindle (RC Based)

Posted: Wed Apr 25, 2012 10:52 am
by CptanPanic
If you checkout hobbyking.com they have powerful motors for cheap even up to 2000-3000 watts.