FriskyFeels

after some deliberation, and due to USC not getting any MH motherboards back in stock until mid-late june, I've decided to go ahead and pull the trigger on an SC2. Will probably still buy a motherboard for my mh721 & either keep it as a back up or sell it to recoup some money.

Little update, installed the new carrier along with a new blade. No change. Now the carrier does not even drop when i turn it off. It just stays up. But if i push it down manually with my finger, it will cut with it down. So i'm guessing the z chip that controls it is toast. Or maybe its something deeper idk. Debating whether i should just get the SC2 or keep dumping money in this hunk of junk

The more i think about it...if this carrier doesnt fix the issue I will probably just upgrade to that SC2 model. No point in dumping money into a cutter that will just break more often. Especially if the SC’s are more reliable!

Also, is this the new SC cutter you mentioned? https://www.uscutter.com/USCutter-SC2-Series-Vinyl-Cutter?utm_source=google&utm_medium=cpc&adpos=1o5&scid=scplp5953&sc_intid=5953&gclid=CjwKCAjwo87YBRBgEiwAI1LkqTVDErN5KZtFIWj5hOYkhX9veP0_WfDKcyal3CenFnTXHWhUrYioYxoCta8QAvD_BwE

Its not my main occupation just a little side business I do, was hoping to be able to fix this one and use it for at least a little while longer. I'm definitely not against upgrading though. I just got home and ran a few more test cuts to get a better visual of what its doing, and I can definitely confirm the carrier is not putting pressure down onto the vinyl. I ran a test at 40g and a test at the max 600g. Both made the exact same cuts, no pressure difference. I know USC said a dull blade and tore up cutting strip can produce uneven results but even if the blade was super dull and the strip gouged, i would notice the pressure being put on the vinyl. I can confirm that the speed does change, i ran a test at 40mm/s and then at 600mm/s and the speed change is definitely noticeable. This makes me think the mobo is still good b/c its changing speed fine. I'm thinking the electromagnet inside the carrier is weak and isn't able to put pressure onto the vinyl. From my understanding the mobo energizes it up and down to put pressure on the vinyl. Sucks i'm on the east coast and have to wait a lil longer since the part came from WA.

would you think the z chip being bad in my mk model is more likely than the carrier itself being bad? Debating whether or not to give usc a call and go ahead and order a z chip a while. Just tryna get this thing fixed so i can get back to business really lol

Ahhh so its more like a replace the whole mobo type of deal then im guessing

Did you ever straighten out your issue?

Small update, confirmed new mk models do not have the chip. I will update after i get my new carriage in after tuesday

Okay thanks!

Hmmm so maybe my z chip is on its way out but not quite

Ahhh. Yess i’ve checked all 4 wheels and went over my carrier arm thoroughly - no sign of damage. But your mentioning of the z chip has me wondering if that might be the issue again. Unfortunately my new carrier wont be here until Tuesday But I think i will give usc another call tomorrow am and ask them if the z chip is an issue for the newer models (mines a 2017).

But yes i forgot to add i have it grounded on both sides of the cutter to the stand

Hmmm okay thanks skeeter. Do the new mh models still have the z chips? I read those were a problem but all the posts I found were from really early like 2011. I checked my motherboard (mines on the side of the cutter i believe) but i couldnt spot any chip that looked like the z chip. I read the mh models have been through a few re vamps since then

Hey skeeter, i set blade depth by pulling it out of the machine and running it across the paper to the point where it didnt cut through the backing paper but still cut enough of the vinyl to make it easy to weed. I’ve probably cut roughly 15-20 thirty foot rolls of vinyl since i bought it a year ago. This will be my first blade change. Another weird thing that happened the other day that i feel is worth noting is that several times the carrier just dropped and would not go up, although it would still cut. I tried resetting a few times and this fixed the issue once. However i had the issue again (it wouldnt lift up) and i checked the carrier with a 9 volt and after it lifted a few times with the 9 volt it was up again. However, it still wont cut deep enough to weed it, no matter how far i ran the blade down or how high the pressure was increased. Does it sound like im messing something up though? I’ve never had this issue so the only thing i can think of is the carrier is intermittent.