DIY CNC Controller Card, USB 4-Axis Linkage Stepper Motor Motion Control Card, 100Khz Motion Controller Card Board for CNC Engraving

Received a good working Unit.

4axis cnc breakout bord supar quality simply wire connection spindle use relay mach3 software windows 7 8 10 smooth play...

Wonderful product by Amazon thanks.

This board paired with the computer just fine. The disc has the Mach 3 software to install on your computer. Everything works as it should.

I have a 15 year old home made CNC mill I wanted to run, but it was running on a parallel port.I played with an old Pentium 4 with a parallel for 3 days without luck.I installed this card and IT WORKED, right away took maybe 15 minutes and no more windows XP.Plug and play, Windows 10 installed a native driver.Do a search for Mach3 USB Interface Board and follow the instructions. You need the dll and xml files.When I first loaded their xml I couldn't move anything I change the jog mode to cont and turned off inputs for X Y Z Home and it worked.Lightning fast delivery, best price around, what more could you ask for?Thanks a lot!

It's great for the price I would buy agin.

The media could not be loaded.  Update: worked perfect and super smooth. Plugged it in on windows 10 and allowed basic automatic windows drivers to be installed. Next, overwrite the mach3 launch file in your mach3 installation folder with the one thats on the CD to give you basic presets, then drop the .dll file into mach3 plugin folder, and thats it! Quick note, this board has variable 0-10 spindle vfd output. In order for this to work you need to have external power going to the board 24v pin. If you dont need that function my unit ran great just off USB. Glad i no longer have to use parallel ports. Dont forget to set your motor profile, accel and decel and max velocity.Also im.using an older mach 3 version 2.0 and it worked just fine.Excellent and authentic "eagle" unit. This is not a knock off. Will be firing it up tonight. Nice board, well made. I was a little worried i'll get a knock off but its the legit "bitsensor" unit. Five stars and i dont anticipate any issues.

If you want to go a bit fast and you have some weight to accelerate, this is not a suitable motion controller. These waveforms were made with just a small RC between the pulse output and ground to show the changes in speed. To keep motors synced, you need to ramp the speed up and down "slowly". Any sudden change in speed can get your motors out of sync and stop turning, loosing any accuracy you want by using stepper motor. If I ramp to full speed and then go back to stop, the slope is about fine (a bit hard near the stop). However, if I hit the jog arrow just a bit (to fine-tune the position of the CNC), the motors stops turning. The second waveform shows that before the transition between acceleration and deceleration, there is a sudden step in speed, which get my motors out of sync. This motion controller is probably usable on small and slow CNC with low inertia.PS: I tried on two different motion controllers and they both do the same. Also tried with another motion controller and directly from the parallel port of an old PC with Mach3 and it's fine.