External spool holder and PTFE tube
 
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External spool holder and PTFE tube  

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cristian.s
(@cristian-s)
Trusted Member
External spool holder and PTFE tube

Hi,

I love the new design but I am not crazy about the top mounted spool holder.
How easy would be to integrate an external spool holder and a PTFE feeding tube?
Is there an exiting design for the original Prusa i3 that can be reused?

My other printer has the following setup:
?dl=0

I would like to reuse the spool holder.

Posted : 03/06/2016 4:03 pm
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: External spool holder and PTFE tube

Cristian

I believe that there are quite a variety of spool holder designs on thingiverse: http://www.thingiverse.com/search/page:1?q=spool+holder&sa=

Have a look at those; it should be fairly simple to adopt one of them to your own requirements.

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Posted : 03/06/2016 5:13 pm
erron.w
(@erron-w)
Estimable Member
Re: External spool holder and PTFE tube

I use this one on all my machines

http://www.thingiverse.com/thing:1194386

Granted its still top loaded (I have limited desk space) but it spins alot more smoothly than the default holder + changing spools is a lot easier.

Posted : 03/06/2016 6:00 pm
RCNet
(@rcnet)
Trusted Member
Re: External spool holder and PTFE tube

I use this one on all my machines

http://www.thingiverse.com/thing:1194386

Granted its still top loaded (I have limited desk space) but it spins alot more smoothly than the default holder + changing spools is a lot easier.

That is the same spool holder I'm using. I also really like it and definitely agree it is much less of a pain when changing spools than the original hubless holder. I did tweak the arm design slightly on my build to help with Octopi cable management.

Posted : 03/06/2016 6:27 pm
richard.l
(@richard-l)
Member Moderator
Re: External spool holder and PTFE tube

Christian,

There is nothing stopping you from using your current setup. You'll just need a much longer PTFE tube to reach from the container to the extruder.

Posted : 03/06/2016 9:10 pm
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: External spool holder and PTFE tube

Richard

Plus a connector to fit the tube onto the extruder body. Orr the motor would have to be moved to the other end of the tube as in Bowden.

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Posted : 03/06/2016 9:29 pm
cristian.s
(@cristian-s)
Trusted Member
Topic starter answered:
Re: External spool holder and PTFE tube

Thank you for all the advice.
I should have phrased my question better :).

I am actually looking for the connector part, how to hook it up to the extruder. I already have the spool holder.
I assume one of the printed parts would need to be modified, is there such a part on thingiverse already?

Posted : 04/06/2016 7:13 am
PJR
 PJR
(@pjr)
Antient Member Moderator
Re: External spool holder and PTFE tube

Cristian

You will require one of these: http://www.ebay.co.uk/itm/Nylon-Pneumatic-MALE-STUD-FITTING-METRIC-BSP-tube-inline-push-fit-connector-/321632323070?var=&hash=item4ae2c7c5fe:m:mTgZbWYrqz_IoSRt6WewUUQ or similar

You should be able to drill out a slightly undersized hole in the extruder body where the existing filament entry point is

Although the parts are not 100% fill, because it's a join between 2 parts, it should hold the connector.

Either that or you could re-design and print the parts with a threaded hole.

Peter

Please note: I do not have any affiliation with Prusa Research. Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage…

Posted : 04/06/2016 11:22 am
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