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3d - Printworx

Nozzle ramming downward into print

Started by henradrie, Wednesday,January 01, 2020, 23:32:12

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henradrie

Wednesday,January 01, 2020, 23:32:12 Last Edit: Thursday,January 02, 2020, 20:50:26 by henradrie
I recently purchased a Robo R1 and mainly use mattercontrol to slice.

Sometimes when I print the print will start off well then the nozzle suddenly rams downward into the object I'm printing. Sometimes it stays there and causes the printer to stop when it restricts the head from moving. Other times it goes back up and continues printing as if nothing has happened. Either way the print is ruined because there is a big melted hole in the object.

It strikes randomly, some prints turn out fine and others don't. The problem has only happened with mattercontrol, I haven't had a chance to test out other slicers much yet. I also haven't tried redoing the failed prints. Mostly because the first time it happened the stl file was converted poorly so I thought that was the issue, then it happened again on another print. These failures didn't happen immediately after another, there were a few good prints between them. The same SD card was used. Nothing looks to have changed with the printer.

Has anyone else experienced this problem? And if so what suggestions do you have for avoiding it?

Sent from my SM-A705W using Tapatalk

Gaza07

Hi henradrie
I would suggest trying a new sdcard if your printing from the card these can get errors very easily, Also it might be worth setting up a different slicer to see if the problem is cured  ~~
Custom built delta with Flex3Drive Gen 4 / Duet Electronics 330mm build area
Custom built delta with Flex3Drive Gen 4 / Duet Electronics 180mm build area
AnyCubic 4max XY printer 210x210x300 build area
AnyCubic Kossel Mini 180x180x300 build area
Geetech A10M Dual Colour 220x220x260 build area
Kelant Orbeat D100 DLP/SLA

Multi-Rotor UK  YouTube  Thingiverse  3d-Printworx

Bad Raven

Not really clear enough to help.  For example, "some prints OK, some not"... is this with the same file/model on the same SD card, i.e. erratic printing, or some files not printing at all, etc, etc.

I note a history of purchasers burning out PSU set as supplied set to 110 not 230, and they clearly didn't check. Little other info around.

It reads (with such minimal info) more like a power glitch than a file/read error.  An SD error should force stop or reset, not allow drive down of head.
HobbyKing Fabrikator II Mini, 100x100x100. (a re-badged Malyan) - Modded with magnetic Flex Bed.
Original Prusa i3 Mk3 (All Black).
Anycubic Photon S  (Resin/UV).

henradrie

I've edited the post to try and supply as much info as I can. Unfortunately it doesn't leave any trace other than a hole in a print.

From what I gather SD cards aren't reliable. Perhaps switching to a controler PC would solve my problem?

I'm pretty sure the PSU isn't the problem. I bought it second hand and the previous owner had it working and I didn't change any settings since I got it. I've also used it with petg which requires more energy to print than  the pla prints which had these errors.

Sent from my SM-A705W using Tapatalk


Gaza07

it will end up being a process of elimination try printing direct from the computer see if it changes the results,
Also maybe a different slicer but only alter one thing at a time so if you do find the problem you will know what the cause was  ~~
Custom built delta with Flex3Drive Gen 4 / Duet Electronics 330mm build area
Custom built delta with Flex3Drive Gen 4 / Duet Electronics 180mm build area
AnyCubic 4max XY printer 210x210x300 build area
AnyCubic Kossel Mini 180x180x300 build area
Geetech A10M Dual Colour 220x220x260 build area
Kelant Orbeat D100 DLP/SLA

Multi-Rotor UK  YouTube  Thingiverse  3d-Printworx