Usb card , Mach 3 compatible

[salzburg]

Has anyone seen this usb card or used it . I don't know if a laptop puts
out enuf power for this card .
http://www.aliexpress.com/201108/210082157/CNC-Pen

[doorknob]

Your link leads to a "page not found" error.

[jjobezo]

It looks like the these USB controllers can also use an external source of DC power so the LAPTOP USB doesn't have to provide it.

[salzburg]

doorknob : go to the Aliexpress home page and on their search bar enter the following :
4 axis CNC USB Card Mach3 200khz . The same card is listed on the site with different
prices.

[jalessi]

Several vendors on eBay have them,

Industry, Arduino items in usb cnc store on eBay!

Jeff...

[salzburg]

Yes it looks the same , but they don't seem to have the 4 axis unit.
I was hoping that someone is using this card so that I can find out if backlash compen-
sation is working with this card and mach3 . With smoothstepper/mach3 it isn't .

[Al_The_Man]

Have you checked out Dynomotion?
Closed loop.
Al.

[ger21]

There was a lengthy discussion about those boards on the Machsupport forum a few weeks ago. But I'm not sure if they found anyone who actually had used one.