After firmware and slicer updates, first layer won't stick?
 
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After firmware and slicer updates, first layer won't stick?  

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ScottW
(@scottw)
Estimable Member
RE:

That doesn't look like transmission corruption...  It tends to be more random, whereas the difference there just looks like one file has supports being laid down and the other does not. Of course, that (having supports) wouldn't explain the adhesion problems, unless there was some problem with the support settings.

There isn't any sort of corruption that would create supports in the file.  Supports (from a Gcode perspective) are not some simple "on/off" command, they are individual move and extrusion commands, so not something that transfer corruption could "add".

Posted by: @davebert

I used the g-code viewer and the facts speak for themselves. Here is the first layer with the crazy pattern that was added and failing the first layer compared to the way it always used to print.

 

Posted : 30/11/2023 10:58 pm
Davebert
(@davebert)
Trusted Member
Topic starter answered:
RE:

Well maybe its just the addition of supports but they don't stick to the bed and when I sliced the file I didn't turn on supports. So something weird happened as all the code has a lot of changes but maybe the addition of supports changes all that other code too, but I doubt it. And both files on my pc are identical but not from the usb stick.

Posted by: @scottw

That doesn't look like transmission corruption...  It tends to be more random, whereas the difference there just looks like one file has supports being laid down and the other does not. Of course, that (having supports) wouldn't explain the adhesion problems, unless there was some problem with the support settings.

There isn't any sort of corruption that would create supports in the file.  Supports (from a Gcode perspective) are not some simple "on/off" command, they are individual move and extrusion commands, so not something that transfer corruption could "add".

Posted by: @davebert

I used the g-code viewer and the facts speak for themselves. Here is the first layer with the crazy pattern that was added and failing the first layer compared to the way it always used to print.

 

 

This post was modified 3 months ago 2 times by Davebert
Posted : 30/11/2023 11:20 pm
ScottW
(@scottw)
Estimable Member
RE:
Posted by: @davebert

... all the code has a lot of changes but maybe the addition of supports changes all that other code too, but I doubt it. 

Well, yes, adding supports will radically change the entire file (at least up to the point where supports end).  That's because all the commands (moves and extrusions) are "inserted" before each layer, thus shifting all the move and extrusion commands for the model to later lines in the file.  And that happens at each layer that includes supports.  Adding supports, depending on the size and complexity, can add hundreds or thousands of Gcode commands to each layer. 

But if you did not enable supports, then I don't know why PrusaSlicer would have added them.  I haven't heard of that happening, but who knows, Prusa has really been pumping out changes to PS over the last year!

Posted : 30/11/2023 11:24 pm
Davebert
(@davebert)
Trusted Member
Topic starter answered:
RE: After firmware and slicer updates, first layer won't stick?

Yep, I guess I updated everything too fast instead of waiting for the reports to come in. 😀 But I seriously did not add supports as the 2 same files on my pc were just sliced on different days as I forgot I had a copy in my Prusalink storage. Oh well, I still feel like I learned the cause of the failure enough to know where to look if it happens again. Thanks for all the help.

Posted : 30/11/2023 11:44 pm
Wilmheath
(@wilmheath)
Eminent Member
RE: After firmware and slicer updates, first layer won't stick?

Posts like these are why the prusa community is not viewed in a positive light like it once was.  Take your fanboy posts to IGN and try to actually help people or don't post at all.

Posted by: @ronnie12342003

so user error 

 

Posted : 01/12/2023 12:25 am
ScottW
(@scottw)
Estimable Member
RE: After firmware and slicer updates, first layer won't stick?

 

Posted by: @wilmheath

Posts like these are why the prusa community is not viewed in a positive light like it once was.  Take your fanboy posts to IGN and try to actually help people or don't post at all.

Posted by: @ronnie12342003

so user error  

You're not wrong, but it isn't just the Prusa community.  It's everywhere.  And to be fair, I lose patience and get snarky at times, too.  Sometimes people are just having a bad day and respond with a harsh reply.  Other times people are just joking, poking fun, being a smart-ass, and the lack of a "/s" or "lol" completely changes the tone of the message.  I don't know which was the case with the post to which you referred.  🙂 

 

 

Posted : 01/12/2023 12:39 am
Davebert
(@davebert)
Trusted Member
Topic starter answered:
RE:

Just a followup. I decided to put on my cleaned brand new textured plate and thought maybe that would help. It didn't and basically nothing on the first layer was sticking. So I put the smooth sheet back on and it printed perfect. So I guess I will need to use a glue stick sometimes although I have never ever used one in all of my 3d printing. I am using Windex with the MK4 and for the most part it has been working great. I usually use a sugar water mix on my sandblasted glass mirror on my CR10-S and that works really well. I bought a large box of Elmers Purple Glue Sticks but never tried them. I also have purchased hair spray but have not tried that either and if I do I will be applying it outside to my sheets as otherwise it would make a complete mess. I also removed all the files from the usb drive and started fresh through Prusalink.

This post was modified 3 months ago 2 times by Davebert
Posted : 01/12/2023 2:26 am
Wilmheath
(@wilmheath)
Eminent Member
RE: After firmware and slicer updates, first layer won't stick?

No worries friend.  I've done it in the past myself.  I always feel bad for someone struggling and know how it feels when you are at your wits end trying to solve an issue and someone responds poorly. 

Posted by: @scottw

 

Posted by: @wilmheath

Posts like these are why the prusa community is not viewed in a positive light like it once was.  Take your fanboy posts to IGN and try to actually help people or don't post at all.

Posted by: @ronnie12342003

so user error  

You're not wrong, but it isn't just the Prusa community.  It's everywhere.  And to be fair, I lose patience and get snarky at times, too.  Sometimes people are just having a bad day and respond with a harsh reply.  Other times people are just joking, poking fun, being a smart-ass, and the lack of a "/s" or "lol" completely changes the tone of the message.  I don't know which was the case with the post to which you referred.  🙂 

 

 

 

Posted : 03/12/2023 3:20 am
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