Yes it true..
I'm attempting a JGRO machine ..
So far I've got the electronics .. with spinning motors :)
and I'm starting to convert the plans to metric on paper.
Attached some pics of my electronics ..

Some more pics.

PS Anybody with info on these motors, I would realy appreciate getting them to work in 8 wire modes ...

Thanx
Thys

i searched and found the following links , they may be of help although the second link is in German , but no doubt a fellow german in the forum could translate if needed

http://www.electro-tech-online.com/viewtopic.php?t=7340&start=15

http://www.ocp.tudelft.nl/mecha/Mechatronica/Componenten/Eind/ASTAOSTN.html

hope it helps

Dave

. although the second link is in German , but no doubt a fellow german in the forum could translate if needed

There is not much info in this link. It mainly states that the motor is 100 steps per rev.
30 Ohm per coil
7,5 V / 0,25 A
Dimensions 42 * 42 * 32 mm
Shaft dia 5mm * 10/28 mm
This looks like one of those tiny steppers recovered from 5 1/4" disk drives

Oh and by the way. German Websites have .de (Deutchland) in their adress.:tired:
This was Dutch.


EJK