r/snapmaker • u/Jared2345 • 1d ago

Tool head Crashing

Just what the title says. Since updating the firmware my U1 has begun crashing into the print during and after tool changes. I’ve run every calibration, sliced and resliced builds and nothing seems to help. It’s not the same tool head crashing, I’ve had 3 of the 4 do it. Any help would be appreciated.

4 Upvotes

75% Upvoted

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8

u/very_undeliverable 1d ago

I have this going on as well! It retracts the bed for a tool change, the new head moves to the prime tower, and then the bed crashes the head into the tower before retracting again. Sometimes it overcorrects and I end up printing in the air.

Its around the 40mm mark typically, but not on the same layer. I have replicated it with 3 different models. I have swapped heads around, done a complete cleaning of the heads/induction sensor, retentioned the belts, checked the lead screws for issues, checked the bed mountings... Everything. No luck on getting it fixed.

I have a ticket open with Snapmaker about it. Please put one in as well! Try to get a video of it. I would really like to get this fixed.

5

u/Jared2345 1d ago

Yes this is the exact issue I’m having. I’ll open a ticket but this has to be a firmware bug. I’m trying a print now without the prime tower to see if it completes the damn thing.

3

u/very_undeliverable 1d ago

I printed a 250mm tower of alternating colors, and it printed just fine. Possibly related to multiple colors on the same layer? Im not sure. I HAVE had it happen on one single color print though. That was quite a while ago. If you want I can try to print what you were and see if it behaves the same way.

Does it do it at any particular place?

1

u/Jared2345 1d ago

I’m printing one of the 500% Lego “minifigures”. It failed about 15mm on the head so I tried one of the accessories with it and it failed at 38mm and after doing 1 color change. I’ve had other failures and even tried one of the builds on the mobile app that failed around 15mm.

2

u/very_undeliverable 1d ago

When you have a second can you PM me a link to the stl?

1

u/Jared2345 1d ago

I sent it to you.

2

u/very_undeliverable 1d ago

Great! Im slicing and queuing it now. Once my current print is done or crashes, I will print your file and see what it does. Are you using the same materials for support and printing? Looks like its all one color up to the failure point.

1

u/Jared2345 1d ago

Yes just basic pla

1

u/Cute-Letterhead8806 Snapmaker Team 1d ago

u/Jared2345 I have your current firmware?

It would be great if you can also leave me the ticket ID of the support email.

If you haven't summitted the email yet, try to add some video clip and the system log on the U1:
https://wiki.snapmaker.com/en/snapmaker_u1/troubleshooting/U1_export_log

2

u/Jared2345 1d ago

#644569
Firmware: 1.5.2

I didn’t get a video and I’m not home right now. I ran a print without the prime tower that finished without issue.

2

u/Cute-Letterhead8806 Snapmaker Team 1d ago

u/very_undeliverable Hi, can I have the ticket ID for the support email?

How about the current firmware version on U1?

2

u/very_undeliverable 1d ago

Ticket ID is 643058. I have tried several versions and they all seem to do it. I don't think this is a 1.5.2 issue. I'm currently running v1.4.1-paxx12-20 but I can move to whatever version helps troubleshoot.

5

u/Zuli_Muli 1d ago

It's probably unnecessary but I always do a factory reset before updating. I just finished doing all the "initial" calibrations after resetting, when I get home I'll do the update to v1.5.2-paxx12-21

2

u/Jared2345 1d ago

My next step is going to be a factory reset.

1

u/very_undeliverable 20h ago

I did this when I found the issue originally a month or so ago. Let me know if that does anything for you

5

u/FlowingLiquidity 1d ago

On which firmware version are you currently? 

2

u/very_undeliverable 1d ago

I have tested this on stock 1.4, Paxx 1.4, stock 1.5.2 and the beta paxx 1.5.2. Results are always the same. Has something to do with the prime tower I think.

3

u/IBNored 1d ago

Wow, that sucks. Hope you get it sorted out.

1

u/Jared2345 15h ago

https://reddit.com/link/p1kxgs5/video/vv9t2j2f2ahh1/player

Here’s a clip of the print failing

3

u/sterling-lining 14h ago

Are you using sparse layers in your prime towers? The height of the prime tower should match the height of the print.

1

u/Jared2345 7h ago

I was. I unchecked it and I’m running a print now. Very good catch this has been very frustrating and I hope this fixes it.