Now, onto the topic that's had me pacing day and night -- the engaging mechanism for your power feed clutch...
I still don't think I get it. Here's what I'm guessing at:
* There's a concentric bolt head extending down beneath the X/Y table and the bolt head's height lines up with the center of the shaft.
* That machined bolt head has a pin sticking out of its side pointing directly towards the drive shaft when the rotation lever is in the middle of it's range.
* That pin can catch in the groove of the left side of the clutch (with the hex head) and push it left or right as I move the cute little lever on top of the table -- engaging or disengaging the drive.
Is that it?
If so, how do you keep the pin in the groove for the entire length of it's travel? Is it spring loaded?
Pics would be so wonderful... :)
--- In GrizHFMinimill@yahoogroups.com, "Rick Grimm" <grimmrlg@...> wrote:
>
> Glad you got the inspiration from my project.
>
> My first attempt at the shield was like yours and not very straight so I made the second one using the outside form as well and turned out much nicer. I do have one minor issue with the x-axis scale mounting and shield in that it limits the Y axis travel in the rearward direction because the rubber chip guard bunches up between the plexiglass and the back of the mill in the last inch of travel, squeezing the plexiglass shield and the dro sensing head.
> I'm looking for a thinner flexible shield that won't present this obstruction.
>
> When the family all goes home from the holidays, I'll get you the pics of the clutch.
>
> --- In GrizHFMinimill@yahoogroups.com, "bbass408" <bbass408@> wrote:
> >
> > Thanks Rick. I tried with some black plastic last night using a plumbing torch but only did the first part you mentioned. So, it came out a little wavy. It looks so crappy, it kinda looks like part of the accordion. :) But, it works. I could not and would not have done the DRO without your inspiration. I did it about twice -- hitting many of the space issues that I think you may have hit too. It ended up being one of the most fun projects I've done in years.
> >
> > Thanks so much.
> >
> > I found a supplier for a similar motor so I ordered the supplies for the power feed. I'd still love to see pics or hear more about that cam lock clutch. I know it's a pain to tear it down for pics, but I'd really appreciate that and I think I'm not alone.
> >
> > --- In GrizHFMinimill@yahoogroups.com, "Rick Grimm" <grimmrlg@> wrote:
> > >
> > > I used a hot air gun to soften 1/8" plexiglas over the edge of a piece of 3/4" thick wood, then quickly forced it into a 1" wide channel made up of 2 2X2s screwed to a piece of plywood.
> > > After it cooled, I ran each long edge through the table saw to get it to the right size.
> > >
> > > --- In GrizHFMinimill@yahoogroups.com, "bbass408" <bbass408@> wrote:
> > > >
> > > > How did you bend the plexiglass so nicely for the swarf sheild on the X axis?
> > > >
> > > >
> > > > --- In GrizHFMinimill@yahoogroups.com, "Rick Grimm" <grimmrlg@> wrote:
> > > > >
> > > > > I completed the powerfeed I mentioned a few days ago, you can see the photos in this album:
> > > > >
> > > > > http://groups.yahoo.com/group/GrizHFMinimill/photos/album/2130350934/pic/list
> > > > >
> > > > > or view a video at:
> > > > >
> > > > > http://www.youtube.com/user/grimmrlg?feature=mhee#p/a/u/0/_Cy-zF6R6cI
> > > > >
> > > > > I found a 24 volt at 2 amps gearmotor with 144 RPM and 6 in/lbs of torque. I checked for more of the same motor but it appears this was a one time only item.
> > > > >
> > > > > I'm sure a similar motor combo can be found, but I'd be wary of any 24v motor that isn't drawing at least 1 amp or it probably won't have enough power, its sometimes hard to find torque specs on ebay listings, luckily the one I got had a link to the spec sheets. I also would not recommend torque less than about 4 in/lb or RPM under 120.
> > > > >
> > > > > http://www.ebay.com/itm/130556417718?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 This is the motor speed controller
> > > > >
> > > > > http://www.ebay.com/itm/200674705469?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 This is the 24v gearmotor
> > > > >
> > > > > http://www.ebay.com/itm/370524958531?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 This is the 24v power supply
> > > > >
> > > >
> > >
> >
>
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