im getting a few GM20s (used) but in perfect condition. i dont have them yet, but will be very shortly. just wanted to give a heads up if anyone needs any.
-Marc
Printable View
im getting a few GM20s (used) but in perfect condition. i dont have them yet, but will be very shortly. just wanted to give a heads up if anyone needs any.
-Marc
Hey Marc: ;)Quote:
Originally Posted by gottaluvlasers
Excuse my ignorance. What is it? All I could find is this.
http://www.solarbotics.com/products/gm20/
John :):):)
[QUOTE=Docjohn;97787]Hey Marc: ;)
Excuse my ignorance. What is it? All I could find is this.
http://www.solarbotics.com/products/gm20/
Not quite, try this: used in beam tables to move beams around:
http://www.gs-scanners.com/pdfs/data..._736-49506.pdf
Steve
hey doc john-
not ignorance at all...
like steve posted, they are an "older" type of beam table actuator. GREAT for beam tables and also great for shutters. they work proportionally to the input V. they are also bi-polar.
0V- arm is "home"
+12V arm is fully Right.
reversed polarity from 0, arm can move opposite direction.
i think they were also used or still used for slower beam scanning. not good for graphics, great for beam work though.
reversed polarity from 0, arm can move opposite direction.
i think they were also used or still used for slower beam scanning. not good for graphics, great for beam work though.[/QUOTE]
They were a slow pen motor for chart recorders. They have a tangent corrected response for moving a pen on paper.
Steve
Thanks guys ;)
John :):):)
Also usefull for scanning CuBr beams.
How much are you asking for them?
Mark
I have 10 of them in unused condition but no less than 80.00 ea. I also have 2 driver cards that drive 8 gm-20's. Sorry to thread jack, i also have arms, mirror holders and a few mounts. They sold for 125.00 years and years ago. I use to buy them by the case. How much are you selling yours for marc?
pat-
youre fired!:mad:
:) playin...
these are prob gonna be around the same price. $80-$90. i wont know until i get them in. the invoice is in with the order. which reminds me....should be here today....
-Marc
oh pat....screw you for hijacking!! :p