Re: Great deal on rotary encoders

I think you will run into a problem with a 1000 count 4000 quadrature
encoder with a 10 TPI leadscrew. That would work out to 40000 counts per
inch. Tom has set the program so the maimum count is about 38000 per inch. A
friend in Australia discovered it. Tom says he'll fix that. In any case
those encoder heads should work with the linear strips or and encoder with
less than 800 counts per rev assuming that you are using a 5-10 TPI
leadscrew.
Dan
-----Original Message-----
From: Tim Goldstein <timg@...>
To: CAD_CAM_EDM_DRO@onelist. com <CAD_CAM_EDM_DRO@onelist.com>
Date: Tuesday, July 13, 1999 8:32 PM
Subject: [CAD_CAM_EDM_DRO] Great deal on rotary encoders

>From: "Tim Goldstein" <timg@...>
>
>I have been hanging on to this message and waiting to repost it until:
>1 - I had a chance to get a couple of these and check them out
>2 - I was then able to hoard as many as possible
>3 - The Dan Mauch / Tom Kulaga DRO boards were ready
>
>I got my board built up last night. It was only as 20 minute or so project.
>I got it installed into an old 486 SX25 with 4 mb ram this morning. To

night

>I was able to hook one of the encoders up to the DRO card.
>
>WOW, I am impressed!!
>
>The card and the program work great, but what amazed me are the encoders.
>They work no problem with the DRO if you want to use rotary encoders and
>provide 4000 quadrature counts (is that the correct term??) per revolution
>so if I set the program for 4000 I get 1" displayed for a full revolution.
>
>The item is part#: G9933 Description: Heavy Duty Motor with Tach Disk

Price:

>$3.95
>Web site http://www.goldmine-elec.com/
>Phone 800-445-0697
>
>Thanks to Andy for turning me on to this great deal on encoders!!
>
>Tim
>[Denver, CO]
>
>
>> -----Original Message-----
>> Sent: Monday, June 07, 1999 7:38 PM
>> From: "Andy Olney" <aolney@...>
>>
>> On the subjecto of encoders, Electronic Goldmine has a DC motor
>> with encoder
>> for $3.95.
>> It is a 1000 line 2 inch? dia. wheel and a HEDS 9100 encoder which is

also

>> good for linear strips.
>> I am planning on using the parts and pitching the motor.
>>
>> Andy Olney
>
>
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