RE: [CAD_CAM_EDM_DRO] What is everyone doing, building, wanting to learn?

Oh my gosh, it is the "how to remove the encoder disks" question again!!!

Actually I feel it is a good question and I learned a lot last time it was
discussed, but it was one of those topics that eventual led to a lively
debate concerning the usefulness of the discussion.

Here is what I remember of the conclusions:
Make a pair of long slotted wedges. Put them under the disk support rind and
squeeze them together to pop the disks off. I have used this method and it
worked very well. The wedges I made are about 5/8" or so wide and about 3"
long. The taper is from about 1/8" thick to the full thickness of 3/8" or
so. The slot down the middle is just wide enough to fit the shaft loosely. I
used a 1/2 tom arbor press to drive them together. There was someone on the
list that had an alternate method as they were concerned that the snap ring
inside the motor that the pressure is being applied against might break. I
don't remember the method as it seemed like more work and everyone that has
used the wedge method has been successful. BTW, you don't remove the
retaining ring or anything. You just press it all off at the same time.

I was playing with a way to make a take-up device and the easiest way to do
it is leave the disks on the motor and connect the motor up to 3 - 6 volts
or so. The current is low enough at that voltage (they are 24 v motors) that
nothing is harmed when they are stalled for a long period of time. You will
have to play with the voltage. You want the lowest you can get that will not
allow your cable or tape to go slack on take-up.

Tim
[Denver, CO]

> Ok I'll ask a Question. I bought 3 of the motors from Goldmine
> Electronics and can't see how to pull the encoders off without ruining
> the encoder discs. Advice would be appreciated.
>
>
> Also I have been thinking about truing to mount the encoder in a
> housing and reel the wire out and in like the DRO's sold by BW
> Electronics in the UK. However I an having a problem in coming up
> with a concept for a rewind system that would be strong enough to
> work. I even considered ordering one of their systems. However the
> shipping makes it rather expensive for something I can't see first.
>
> Any help on how t do this.
>
>
> Garry
>
>
> To: CAD_CAM_EDM_DRO@egroups.com
> From: "Tim Goldstein" <timg@...>
> Date sent: Fri, 5 Jan 2001 20:13:21 -0700
> Send reply to: CAD_CAM_EDM_DRO@egroups.com
> Subject: [CAD_CAM_EDM_DRO] What is everyone doing,
> building, wanting to learn?
>
> > I was just reviewing past messages and it is amazing. We have almost
> > 1000 people on this list and there are only about 10 of us that
> > regularly say things and probably only 30 or so that have even posted
> > in the past month.
> >
> > What is going on with the rest of you? If you are trying to learn this
> > stuff, start asking some questions so we can have some discussion on
> > topics other than the esoteric. If you are a pro already please jump
> > in and share your knowledge. Tell the group what you are building,
> > what you want to build, what you have made that was a failure. Come
> > on, there has to be more happening out in our collective workshops
> > than BSing about digitizers most of us will never build and writing
> > G-code parsers most of us will never write. Don't mean to disparage
> > these topics, but they are not high on my list of exciting discussion
> > topics. Let's hear about cutting some metal and making chips or sparks
> > (didn't want to forget the EDM part of our name).
> >
> > Tim
> > [Denver, CO]
> > On the quest to broaden our discussions
> >
> >
> > Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
> > discussion of shop built systems, for CAD, CAM, EDM, and DRO.
> >
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> >
>
>
>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for
> the discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
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> Subscribe: CAD_CAM_EDM_DRO-subscribe@egroups.com
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> bill,
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>
>