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MMU works but wipe tower came off  

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mhacker
(@mhacker)
Trusted Member
MMU works but wipe tower came off

So I assembled my MMU3 for my MK4 and started a test print. It actually worked fine, but the wipe tower didn't stick to the plate. The print finished but there were some spaghetti around the printer and some of it merged with the object.

Is this a common issue? It didn't look like the first layer of the wipe tower was actually covering the entire area of the tower, so there was less material adhering to the plate.

Posted : 29/05/2024 8:00 am
agruener
(@agruener)
Member
RE: MMU works but wipe tower came off

I believe I have exactly the same issue. Print worked well. Spaghetti wipe tower.

Any idea what I did wrong or what to do?

Posted : 01/06/2024 6:54 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: MMU works but wipe tower came off

at a guess, I would say that you probably had poor adhesion. 

I Wash my build plate with HOT WATER AND DISH SOAP,  rubbing vigorously with a new dish sponge, then  rinse well with fresh hot water and dry immediately with  plain paper towels (both sides), (Keeping  your fingers OFF the print surface)and then I put the heatbed on the printer and bring it up to print temperature.
I do not use Isopropyl alcohol...

And I usually use 70C on the heatbed for PLA


Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 01/06/2024 9:04 am
agruener
(@agruener)
Member
RE: MMU works but wipe tower came off

Thanks for your tips 👍

I use the texture sheet and clean it with IPA 90% all the time. My bed temperature is at 60.

I will try out the higher temperature and cleaning it as you suggested.

Will the satin sheet be a better option for PLA?

Posted : 01/06/2024 9:42 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: MMU works but wipe tower came off

I use textured and satin interchangeably and rarely use smooth, because I feel it's more fragile. 
regards, Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK

Posted : 01/06/2024 1:27 pm
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