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Mother of Blob (Removement Help)  

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STAFFSMITH
(@staffsmith)
Eminent Member
Mother of Blob (Removement Help)

Hey

I produced the Mother of extruder Blob´s... 😳
Any tips ore advices?
What is the best way to remove it?

Posted : 15/01/2019 7:37 pm
toaf
 toaf
(@toaf)
Noble Member
Re: Mother of Blob (Removement Help)

welcome to the club
turn on the hot end and be careful, around the wires. be extra careful around the thermistor wires.

your prusa hazing is now complete 😀

good luck, take your time

I have a Prusa,therefore I research.

Posted : 15/01/2019 7:52 pm
Bunny Science
(@bunny-science)
Noble Member
Re: Mother of Blob (Removement Help)

I hope this is PLA, not PETG. If this is PETG, you get to do this with both blog and extruder body having same melt point.

If you turn on the hot end, let the cooling fan blow over the heat sink, or you will melt your extruder body.

I would use a hot air pencil set to 180C and use that to soften just the blob. That requires you have a hot air pencil. I use an Aoyue 968A+ SMD Digital Hot Air Rework Station for PC board rework, but its soldering pencil and hot air tool are unparalleled for tightly controlled plastic melting.

Posted : 15/01/2019 8:16 pm
STAFFSMITH
(@staffsmith)
Eminent Member
Topic starter answered:
Re: Mother of Blob (Removement Help)

I tryed the hot end version, the blob wars to big no chance.
bud im on a good way, i dismantled the hole extruder and drilled holes in the blob.
now im in progress with a hotair blower and a sidecutter.

got like 50% down, will do that method to 25 % and then rebuild it to heat the nozzle.
hope thats a good plan.

Luckely its Pla

What do you think shut i do the cables on the mashine ore with my method?

Posted : 15/01/2019 8:56 pm
toaf
 toaf
(@toaf)
Noble Member
Re: Mother of Blob (Removement Help)

are the wares free and clear? they look in good shape. that's great,

my bad you still have a ways to go. 🙁 maybe hot air and slowly work your way thru.

I have a Prusa,therefore I research.

Posted : 15/01/2019 8:59 pm
STAFFSMITH
(@staffsmith)
Eminent Member
Topic starter answered:
Re: Mother of Blob (Removement Help)

All fine!, no worris,

nope the cables are full covert in pla.
what do you think, could i saw a cubik around the cables and let it be like that? in that way there is no chance to break them.
or are the safety issue with that?

Posted : 15/01/2019 9:10 pm
STAFFSMITH
(@staffsmith)
Eminent Member
Topic starter answered:
Re: Mother of Blob (Removement Help)

So i came this far.

Over the process i became trust issues with the covert parts of my hotend, i don't want to risk my printer or my family.

The Heatsink is free and looks good, bud the issues i got with the cables and the block.

So i looked for new parts, and why not upgrade.

What i had in mind : v6 Plated Copper Heater Block, Capricorn Bowden Tubing and V6 Titanium Heat Break (1.75mm) (Nozzle X is already on the way)

Somebody got experience with the combination? How hot can i go with that?

And what about the printed part? i think its to deformed.

Thanks in advance! 😀

Posted : 15/01/2019 10:50 pm
toaf
 toaf
(@toaf)
Noble Member
Re: Mother of Blob (Removement Help)

maybe at this point you can turn the hot end on.

I have a Prusa,therefore I research.

Posted : 16/01/2019 12:52 am
toaf
 toaf
(@toaf)
Noble Member
Re: Mother of Blob (Removement Help)

I think when I got my initiation blob my printed part got messed up abit also, but I left it in, its still working. maybe I just got lucky. I never did change my extruder body when I installed my mmu. guess its on my list...

and when I got my blob I blame it on theeekkkiiinnng ( 3rd party textured sheet company) that stupid sheet couldn't hold a parint well after the 5th print of so.

I have a Prusa,therefore I research.

Posted : 16/01/2019 1:58 am
Bunny Science
(@bunny-science)
Noble Member
Re: Mother of Blob (Removement Help)

You're going to do great field paleontology.
Good job on the cleanup.

Posted : 16/01/2019 3:45 am
michael.f44
(@michael-f44)
Active Member
Re: Mother of Blob (Removement Help)

Looks like your extruder gave birth to an H.R. Giger baby. Might be worth something on ebay 🙂

Posted : 16/01/2019 9:36 am
STAFFSMITH
(@staffsmith)
Eminent Member
Topic starter answered:
Re: Mother of Blob (Removement Help)

I did it!
bud im not sure if my cabels are ok.
Maybe somone can take a look.

Posted : 16/01/2019 8:40 pm
toaf
 toaf
(@toaf)
Noble Member
Re: Mother of Blob (Removement Help)

nice. it's hard to tell about the wires, but i would say if a thermistor wires are bad it will let you know.

my wires look like hell after my blob, i have not changed it out yet, i did order an extra and it's waiting. but that was months ago.

I have a Prusa,therefore I research.

Posted : 16/01/2019 8:45 pm
STAFFSMITH
(@staffsmith)
Eminent Member
Topic starter answered:
Re: Mother of Blob (Removement Help)

Sooo, printer isn´t operating since the blob.
Found the error now, the tube in the hotend got deformed.
The hotend wasn´t clogged (i could see through ) but no filament transport.

Have a look on the tubing, it got compress into the passiv cooling rips.

Posted : 19/01/2019 12:52 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
Re: Mother of Blob (Removement Help)

that looks terrible. no wonder you had difficulty

hope it works better after changing the PTFE

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 : 19/01/2019 1:20 pm
STAFFSMITH
(@staffsmith)
Eminent Member
Topic starter answered:
Re: Mother of Blob (Removement Help)

Thanks Joan!
btw awesome job here!

Posted : 19/01/2019 2:03 pm
Martin Wolfe
(@martin-wolfe)
Reputable Member
Re: Mother of Blob (Removement Help)


And what about the printed part? i think its to deformed.

It looks like it might be good enough for a temporary situation. Try assembling the extruder when you have finished removing the blob and print replacement extruder plastic parts in black PETG. The print fan nozzle will need to be printed in ABS, PC, Greentec Pro or any other material with a high temperature resistance.

Regards,
Martin

Martin Wolfe

Posted : 19/01/2019 2:20 pm
cwbullet
(@cwbullet)
Member
Re: Mother of Blob (Removement Help)

Now, that is a blob. I had a smaller one. Tweezers and a heat gun worked for me.

--------------------
Chuck H
3D Printer Review Blog

Posted : 19/01/2019 7:21 pm
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