CAD CAM EDM DRO - Yahoo Group Archive

RE: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent

Posted by dlantz@a...
on 2002-02-14 05:40:26 UTC
ok..ok.ok.... having a thought here (ou! ouch!). could you attach a rotary
switch TO a gecko 210, to adjust its multiplier settings? then you could
send the encoder infromation from the JOG knob TO the microchip to make
step/direction pulses, AND select HOW much you want to move incrimentally
(typing too fast to spell, sorry)... the multiplier switch could be
activated by the 'automatic/manual jog' switch, so as to not mess up your
program if you want to resume...etc... or not if you like the functionality!
---Dave L.

-----Original Message-----
From: pentam@... [mailto:pentam@...]
Sent: Wednesday, February 13, 2002 6:49 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent



Alan Marconett KM6VV wrote:

> Are you saying that the pulse generating hand wheels
> actually have some force feedback, or that you can
> feel the steps (detents?) of the encoder? So once
> zeroed, their scales remain accurate to position,
> just like a manual mill?

How about just using a big knob connected to a small
dual shaft NEMA 17 or NEMA 23 stepper motor (to give
the quality 'feel' of detents), and add an encoder to
the back of the stepper for feedback to the computer.

The stepper motor is not connected up, its just there
to add the 'feel'.....

If the encoder has the same resolution as the steps
of the motor, so much the better.

Here is an improvement: I just grabbed a slo-syn NEMA23
200 step stepper off the the shelf (this one is dual stack)
to 'feel' it, and it does feel nice.. those little
detents just whip off...

However, shorting some of the leads causes the motor to
be difficult to turn (this is no surprise), so much so
that individual steps can be felt and almost counted! ..
it is hard to turn it more than 10 or 15 steps/second....
so that it would be easy to rotate into a given particular
spot without overshooting it. Thus maybe a pushbutton
should be placed on the panel somewhere to put the
'encoder wheel' into this mode for
'sneaking up' to a precise position.

Everybody try this at home with your spare steppers!

Also note that the real cheap 7.5 degree or 15 degree
steppers could also be used, if you wanted 'big hops'
between steps, instead of little mini ones.

Doug Fortune
http://www.cncKITS.com


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Discussion Thread

Doug Fortune 2002-02-13 21:17:30 UTC rotary hand encoder wheels with detent Brian Pitt 2002-02-13 21:37:28 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-13 21:56:23 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent ballendo 2002-02-14 04:03:40 UTC Re: rotary hand encoder wheels with detent dlantz@a... 2002-02-14 05:40:26 UTC RE: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Alan Brumley 2002-02-14 06:08:27 UTC Stepper Motor Source Garry & Maxine Foster 2002-02-14 06:39:20 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Mr. sausage 2002-02-14 07:18:21 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Doug Fortune 2002-02-14 07:55:23 UTC RE: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent rcstickman 2002-02-14 07:57:12 UTC Re: Stepper Motor Source Doug Fortune 2002-02-14 08:00:32 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Scot Rogers 2002-02-14 08:26:26 UTC RE: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent dlantz@a... 2002-02-14 09:16:20 UTC RE: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Mark Ehle 2002-02-14 09:28:36 UTC Re: [CAD_CAM_EDM_DRO] Stepper Motor Source Jon Elson 2002-02-14 10:16:57 UTC Re: [CAD_CAM_EDM_DRO] Stepper Motor Source mariss92705 2002-02-14 10:33:13 UTC Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-14 10:44:36 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent dlantz@a... 2002-02-14 11:02:45 UTC RE: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent Ian W. Wright 2002-02-14 11:27:34 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-14 11:57:14 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-14 12:11:20 UTC Re: [CAD_CAM_EDM_DRO] Stepper Motor Source dlantz@a... 2002-02-14 12:15:56 UTC RE: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-14 12:23:39 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-14 12:26:41 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-14 12:54:17 UTC Re: [CAD_CAM_EDM_DRO] rotary hand encoder wheels with detent Carol & Jerry Jankura 2002-02-14 13:52:00 UTC RE: [CAD_CAM_EDM_DRO] Stepper Motor Source flyspeck1@a... 2002-02-14 16:07:12 UTC Re: rotary hand encoder wheels with detent JanRwl@A... 2002-02-14 18:46:36 UTC Re: [CAD_CAM_EDM_DRO] Stepper Motor Source Doug Fortune 2002-02-14 19:19:13 UTC Re: rotary hand encoder wheels with detent Mr. sausage 2002-02-14 21:03:49 UTC Re: [CAD_CAM_EDM_DRO] Stepper Motor Source Jon Elson 2002-02-14 22:35:02 UTC Re: [CAD_CAM_EDM_DRO] Stepper Motor Source Ian W. Wright 2002-02-15 02:59:37 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent aspaguy 2002-02-15 12:51:26 UTC Re: Stepper Motor Source tedinoue 2002-02-16 03:55:19 UTC Re: rotary hand encoder wheels with detent imserv1 2002-02-16 09:00:47 UTC Re: rotary hand encoder wheels with detent audiomaker2000 2002-02-16 09:13:19 UTC Re: rotary hand encoder wheels with detent audiomaker2000 2002-02-16 09:29:09 UTC Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-16 14:22:05 UTC Re: rotary hand encoder wheels with detent wanliker@a... 2002-02-16 17:18:28 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent imserv1 2002-02-16 22:20:11 UTC Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-17 12:10:29 UTC Re: rotary hand encoder wheels with detent audiomaker2000 2002-02-17 12:30:53 UTC Re: rotary hand encoder wheels with detent imserv1 2002-02-17 13:42:18 UTC Re: rotary hand encoder wheels with detent wanliker@a... 2002-02-17 15:20:14 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent ballendo 2002-02-17 23:20:53 UTC ball plungers was Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-18 10:35:51 UTC Re: rotary hand encoder wheels with detent Mike Snodgrass 2002-02-18 11:19:07 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-18 11:20:26 UTC Re: rotary hand encoder wheels with detent Alan Brumley 2002-02-18 11:37:08 UTC RE: [CAD_CAM_EDM_DRO] Stepper Motor Source Alan Marconett KM6VV 2002-02-18 11:45:39 UTC Re: rotary hand encoder wheels with detent Carlos Guillermo 2002-02-18 11:51:34 UTC Re: rotary hand encoder wheels with detent Angelos 2002-02-18 12:27:17 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent Brian Pitt 2002-02-18 13:03:35 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent Smoke 2002-02-18 14:05:15 UTC Re: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-18 14:10:09 UTC Re: rotary hand encoder wheels with detent imserv1 2002-02-18 14:34:16 UTC Re: rotary hand encoder wheels with detent Carol & Jerry Jankura 2002-02-18 17:46:01 UTC RE: [CAD_CAM_EDM_DRO] Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-18 17:46:55 UTC Re: rotary hand encoder wheels with detent ballendo 2002-02-19 02:08:27 UTC Feedrate overide was Re: rotary hand encoder wheels with detent ballendo 2002-02-19 04:05:06 UTC keyboard typematic and old dos stuff was Re: rotary hand encoder wheels... Alan Marconett KM6VV 2002-02-19 10:54:07 UTC Re: rotary hand encoder wheels with detent jeffdavis516 2002-02-19 11:23:47 UTC Feedrate overide was Re: rotary hand encoder wheels with detent Alan Marconett KM6VV 2002-02-19 11:31:56 UTC Re: [CAD_CAM_EDM_DRO] Feedrate overide was Re: rotary hand encoder wheels with detent