Here is a puzzler for you guys. I have been experiencing a layer shift every time I do a filament change. I this happens I try to re-home x/y and try again but for some odd reason it is just keeping this shift. has anyone experienced this issue? I keep my rails clean and do maintenance on the vgroove wheels every print.
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Brad M Bourgoyne Hi Carlos,
I also have that problem, but mine is caused by a lost step here and there adding up to a big shift at the top of a print. I've been printing fat (1.2mm nozzle x 0.6mm layers) and an occasional blob or warped section will bump the printhead. Its not a lot, and usually isn't even enough to be perceptible on the part surface, but enough of those over 100 layers adds up.
I'd suggest printing a large, tall cube (or several at once) for calibration and see if the sides are truly vertical.
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Matthew Fiedler Carlos,
Sorry for missing your earlier post. We are getting ready to roll out a new firmware and hardware upgrade kit that adds a second Y axis homing switch on the right side to keep the bridge rail absolutely aligned to the frame before and after filament change. The new firmware has many more new features in the latest version of Marlin that I am sure you will enjoy. The new firmware and second Y axis homing switch upgrade will require the latest motherboard, Axteeg X3 PRO. If your Gigabot has a serial number below GB - 456 you will need to upgrade to the Azteeg X3 PRO controller to take advantage of the new firmware and dual Y homing switch.
Brad,
What you seem to be experiencing is something different. I think you are "missing steps" during a print. We can help you troubleshoot the issue. Please copy and past this post in an email to support@re3d.org. It may be caused by too tight of wheel tension / too high acceleration in the Gcode file or a weak motor driver. Please let us know if it happens primarily in the X or Y axis, or both axis. Looking forward to getting you both running with much improved print quality.
Best,
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