demount printcore um3

[bschulte 1]

Hi guys, has anyone ever tried to demount the bb printcore? I've a serious pva clog in it and the regular unglogging procedure is not working. it think the pva is burned and not melting anymore.... I just want to make sure if there are 'things' to consider demounting it.

thanks ia

Barry

[tomnagel 126]

Please read my comments in https://ultimaker.com/en/community/49459-clogged-bb-core?page=1&sort=#reply-180561

[bschulte 1]

Thanks Tom,

I'll get my self a needle of some sort... Maybe it's an idea that UM hands some procedure on how to handle PVA when you don't use it for some time... i see more people struggle with this.

What i'll do is change bb printcore as soon as I don't use it and put in a sealed bag with silica... hopefully that helps.. any other tips?

[tomnagel 126]

Keeping the PVA dry is definitely the most important advice. I'm not sure that this is also necessary for the bb core, I don't think that is necessary, but it certainly won't hurt.

[kmanstudios 1,120]

If I am correct, and depending on Team Ultimaker or someone better prepared to correct this, but I understand that you are better off having a core in both slots at all times.

If I am not using the PVA, and not using the additional AA core, I just back the PVA out of  The BB core, clean the outside, clean its innards with pulls and let it be until I need to change or use it again. Then I just advance the PVA back into the nozzle, do a preheat on the core and then a move on the material to make sure it is primed and flowing.

Edited May 26, 2017 by Guest