Klajan

joined 2 years ago
[–] [email protected] 1 points 1 week ago

I just removed the Glass plate, not really a big job in my case.

Almost all of the glue stayed on the Glass and the remaining glue was very easy to clean with Acetone.

[–] [email protected] 2 points 2 weeks ago

Yes that was my idea, I already ordered a magnetic plate kit today and I can try this out first. Since the heater is an aluminum PCB directly glued to the glass I might just try to separate the glass from the PCB if the glass if sticking it on top doesn't work out like I wanted

[–] [email protected] 1 points 2 weeks ago

Luckily I already have a ABL setup, since I had to re-level the bed every 2 or 3 prints...

[–] [email protected] 2 points 2 weeks ago (2 children)

I might be "lucky" in the sense that the glass appears to already separate at the corners.

Does the magnetic plate warp much under high heat loads? Since I print a lot with PET(G) and sometimes ABS I thought this might be a problem.

If I leave the glass on I might not get to the Maximum temperature, but I ordered some moderately priced magnetic kit already, so I'll just clip this on top and Test first.

[–] [email protected] 2 points 2 weeks ago

Yes this is the first time this has happened, I printed roughly 2kg of abs on this printer already and I never had any problems with too much bed adhesion. But hey, this part didn't warp a single mm ಠ_ಠ...

[–] [email protected] 3 points 2 weeks ago (1 children)

It might work, but you generally want to have a flat surface and it needs to stand up to extended periods of temps up to 110°C and I'm pretty sure this is borosilicate glass

But I also can't get the glass shards off the printed parts, so this is pretty much a moot point

[–] [email protected] 2 points 2 weeks ago

I've managed to get the rest of the sprint loose, sadly it was already damaged beneath.

Since it looks like the glass bee is already lifting by the corners from the heat bed I bet I can remove it pretty easily, but if the bare heater PCB (1.5mm thick) makes a good surface for a magnetic bed I don't know...

[–] [email protected] 3 points 2 weeks ago (3 children)

That was my idea, as well, but the Glass is glued to the heater, though I have seen a video that shows its possible to remove the glass.

But then the thin aluminum heater seems so flexible, I am not sure if a flexible PEI sheet on top of that would work well...

[–] [email protected] 5 points 2 weeks ago (3 children)

To be fair the PEI kit I was looking at is a aluminium baseplate, silicone heater mat, magnetic base & the PEI sheet, so basically a complete replacement of the bed.

since the glass is glued to the heater I was looking at a complete replacement at first.

[–] [email protected] 3 points 2 weeks ago (1 children)

That sounds like an option. It looks like the aliminum heater is quite thin, I estimate 1-1.5mm, so unlikely to be a good suface to mount a flexible sheet to?

[–] [email protected] 2 points 2 weeks ago (5 children)

Yea, I can see that now, It is how it came from the factory.

I could try to seperate the Glass from the aluminum heat bed, though I fear I might bend it in the process. It looks like the MK3 ALU-Heatbed Dual Power frm the reprap Wiki, except it's 220x220mm.

If I can get the glass off without damaging the Heatbed I could also attach a magnetic PEI Plate to that, not sure if that thin alu plate is a good backing in that case.

[–] [email protected] 2 points 2 weeks ago (1 children)

Thanks, I guess that could be an option. I would just have to find a way how to seperate the heater PCB from the existing glass, it does appear to be glued to it quite strongly

 

I was printing some ABS on my modified Anycubic I3 Mega overnight, when I awoke to this horror of a destroyed glass print bed...

Now the question remains, how to actually fix this? One part is still firmly attached to the Bed and I fear this may destroy the Bed even more.

And I obviously need a new Print bed, but I can't find the exact replacement, so should I even get a replacement Ultrabase? I saw that there are magnetic PEI beds available, but I am unsure if it is worth the 80-100€ for this.

Edit: Since the glass is glued to the 1.5mm aluminium heater PCB (and I already had to resolder the broken off wires once) I was looking at complete replacements at first, which why the price is relatively high

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