Trevor G

Ha, oops. I'm used to faster flowing forums....

It was and it works now. I just disassembled the connector from the cutter carriage and swapped the wires. Some one built this board at beer o'clock on a Friday.... Thanks for getting my mind looking at other things.

You are a GENIUS!!!!

They ship out of Texas, I'm in Canada. That's not close. I'm losing work the longer this continues.

cutting head plunges down and does not release until the power is turned off.

I am having the same problem immediately after replacing the motherboard with a new one. Have you figured out the problem? If not I will let you know what I find.

I revise my statement, things are fixed, now I have new problems....

Whoop!!! Received the new motherboard today and installed it quite easily. Turned the cutter on for testing and....... Success!!!!

Sorry I ended up coming down with some flu that was going around at work. So I just spoke to the tech support line. I explained my situation. He immediately asked me to look at the heat sink on the motherboard (my MH871 is a MK2) and locate the red and white pigtail on either side of the heat sink. These are for the feed rollers and the motor for the cutting head. He had me switch the pigtails, so red pigtail in white socket and white pigtail in red socket. Then asked me to turn on the machine. The cutting head moved like normal and the feed rollers did not move. This indicated to him a motherboard problem. It needs a motherboard. I have ordered one already and await arrival (maybe a week?, international shipping and all...). Once I have the new mother board installed, I will post results.

Yeah I slept in this morning and had to bolt to work. I will have to call tomorrow morning. After I made and posted those last two videos, I grabbed ahold of the belt hard and ran the motor, it ran smoothand gave good pull on my grasp.

So I removed the cutting head to inspect the rollers. Before removing I checked for play as it sits in the track, and it appears to be tight. Please excuse the black hands, I am a mechanic by day... This video just reviews clear smooth movement of the belt with the cutting head removed. I have the cutter apart and not able to make a better video, this is why I made the above and spoke this time (hahaha). I have yet to phone tech support as I just discovered how early they are open. I will calling them in a few hours. I will post any progress through tech support for others to review.

Last time it cut it was cuting normally, but sounded laboured. I tried to job the cutting head after the last cut and it was binding and showing the signs as the first video. I only notices the directional problem after the fact. I ran the belt disconnected from the cutting head like you recommended and It ran smooth, no problems, other then the directional conflict being intermittent. I have not yet removed the cutting head yet but it seems to move smoothly, I will still take it off tonight to ensure its ok. And yes there is a ground strap from the stand to the cutter as specified by USCutter.

So I wanted to confirm the motor before I ordered anything. It turns freely on its own, I put pressure on it to simulate the cutter head and it still turns OK; however, I do notice that rarely the motor turns the incorrect direction. Could there be something else causing a problem?

I was afraid to hear this... Is there any maintenance I should be doing to prevent further problems. I wipe out dust from the track... I dont know much else I can do...

Should work, now i tried in unlisted...