Printer head keeps lowering during printing

Comgrow T500
1

My T500 printer head keeps lowering during printing. I have to sit and baby sit it in order to print anything. I’ve tried about everything suggested on this and other sites I’ve seen. ??? Is the T500 just a lemon? I can’t do a 3 day print and have to sit with it to do an adjustment every 20 to 30 minutes. I thought this would be an ideal printer due to its large (500 x 500 x 500) print size. Thus far its been nothing but a headache…..

2

I don’t remember anyone posting about the linear rails slipping before.

@sovol3d

3

I tried to send this but it rejected it as I had more than one image showing some of the posts regarding the T500 head lowering and hitting the print. I removed one image and left a URL with the first image and a URL for another post about it. Maybe this will get to you. Thanks.

Here’s a few. We have a smaller Flashforge printer at my office. Its simply load and go. I haven’t been able to get much satisfaction out of the T500. I’ve tried probably a dozen prints with it and have had success with 2. I can’t get the items to stick to the plate. The printer head jams into the print after 30 minutes or so as I mentioned. The last time was really a pain (as you could gather from my frustration in my last email). The printer head pushed the print to the side, then the extrusion began piling up in the printer head. I had to be away from it for about an hour or so and when I went to check on it the head was completely impacted with PLA filament. I had to turn the printer head on to 250 and gradually cut it out a piece at a time. Being very careful I got it all out after about 30 to 40 minutes. I wished I could get this to do as the one at the office, hit the print button and forget it until its done. I’m sorry to sound so ill in the prior email. It gets very frustrating……

https://forum.sovol3d.com/t/print-nozzle-colliding-with-print-after-an-1-2-hour-or-so-of-printing/8342

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https://www.reddit.com/r/Sovol/comments/1hic933/t500_nozzle_impacts_printed_material_after/

4

Can you send an email to info@sovol3d.com. Please enclose with the above situation. The after-sales staff will help you to solve the problem

5

I strongly doubt the Z axis is loosing counts.

I suspect the filament you are using is shrinking enough to “curl” your print causing it to be high on the edges.