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

Well I thought I had read every post on the list about them and only
seen one post that talked of prying them off with screw drivers. I
have read the page that uses them with Sieve's software.

Actually the thought of using the encoders with the motors providing
the tension had occurred to me but I dismissed it with out making
any tests. Maybe I ought to try it first....

However I would really like something more compact...


This is when I started reading the list was about the time they were
available.



Thanks
Garry




To: CAD_CAM_EDM_DRO@egroups.com
From: "Tim Goldstein" <timg@...>
Date sent: Sat, 6 Jan 2001 14:32:26 -0700
Send reply to: CAD_CAM_EDM_DRO@egroups.com
Subject: 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.
> > >
> > > Addresses:
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> > > http://www.ktmarketing.com/faq.html bill, List Manager
> > >
> >
> >
> >
> > 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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> > http://www.egroups.com/group/CAD_CAM_EDM_DRO FAQ:
> > http://www.ktmarketing.com/faq.html bill, List Manager
> >
> >
>
>
> Welcome to CAD_CAM_EDM_DRO@...,an unmoderated list for the
> discussion of shop built systems, for CAD, CAM, EDM, and DRO.
>
> Addresses:
> Post message: CAD_CAM_EDM_DRO@egroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@egroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@egroups.com
> List owner: CAD_CAM_EDM_DRO-owner@egroups.com, wanliker@...
> Moderator: jmelson@... [Moderator] URL to this page:
> http://www.egroups.com/group/CAD_CAM_EDM_DRO FAQ:
> http://www.ktmarketing.com/faq.html bill, List Manager
>