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Dissolvable Support Gearbox

by tbuser, published

Dissolvable Support Gearbox by tbuser Oct 8, 2011

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Description

This is a simple demo object. It has gears on shafts inside a shell and would require internal support structures that would be pretty difficult to remove without support that dissolves.

Update: It worked! I've had trouble getting PVA to stick to ABS, however it sticks pretty well to PLA when you extrude both at around 210c. Here's a video:

flickr.com/photos/tbuser/6733182253/

Update 2013-02-04:

Also works with dissolvable HIPS filament supporting ABS. See: flickr.com/photos/tbuser/8522775217/in/photostream

Recent Comments

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instead of making a second 3d file, that fills the others overhangs out, is it possible to set the raft to be printed by the secondary extruder?

instead of making a second 3d file, that files the others overhangs out, is it possible to set the raft to be printed by the secondary extruder?

I got the filament from FilaCo - https://www.filaco.com/shop/ab... . And the Limonene from Amazon - http://www.amazon.com/gp/produ... . I'll be trying it out this weekend...

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Comments

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JeppeHMikkelsen on May 16, 2013 said:

instead of making a second 3d file, that fills the others overhangs out, is it possible to set the raft to be printed by the secondary extruder?

Anonymous on May 16, 2013 said:

instead of making a second 3d file, that files the others overhangs out, is it possible to set the raft to be printed by the secondary extruder?

laird on Mar 7, 2013 said:

Very cool. Amusing: googling for "dissolve HIPS" does not result in any relevant info to this topic.

tbuser on Mar 7, 2013 said:

Yeah, and whenever I enter hips into chrome search bar, it keeps auto-completing hipster :)

anchange on Jul 14, 2012 said:

How did you get the raft to work with dual extrusion? I thought you couldn't use a raft with dual heads in replicator. I'm trying to get ABS and PVA to work but the PVA only sticks to the HBP at a different temp then the ABS so I thought a raft would solve the problem.

tbuser on Jul 20, 2012 said:

The trick is to use PVA and PLA, not ABS. PLA and PVA stick together better.

andreas on Mar 21, 2012 said:

It's amazing what dual extrusion makes possible. Just awesome, so many possibilities. Well done, Tony!

ramos96 on Feb 9, 2012 said:

Im a complete 3d printing noob at the moment, i backed the the printrbot and of course anxiously awaiting its arrival, but is it necessary to have a dual nozzle/extruder to print with suppot material?

:)

tbuser on Feb 9, 2012 said:

To print support in a second material like water soluble PVA like I did here - yes, you need dual extruders.

TeamTeamUSA on Jan 24, 2012 said:

Awesome work Tony! :) 8-)

There are three polishers/agitators at the BotLair from Project Shellter. Put your part and water in a ziploc bag and toss into one of them. The agitation should speed up the dissolving time considerably!

MangoT21 on Jan 21, 2012 said:

This needs to be featured! :) (and as a bonus it has the makerbot logo on it :)

bifi5590 on Jan 21, 2012 said:

Hmm.. I think I have to upgrade my printer... NOW!! ;)

Very nice :)

tlalexander on Oct 12, 2011 said:

What if you printed this so it was on its side? Seems like it would drastically reduce the amount of support needed, right? You'd really only need support where the pins go through the gears if the housing was designed properly. And if that were the case you could get enough leverage on breakaway support to just crank everything to remove it.

Maybe I'll draw up a gearbox and see how possible it really is!

tbuser on Oct 12, 2011 said:

Hmm, even sideways, I think it would be difficult with such a long narrow space between the shell up to the shafts. I'd suggest you give it a try with this model and see if you can make it work instead of making another one. :)

Besides, I'm hoping with dissolvable support, you don't have to worry so much about designing the part to be printable, you just design the part the way you want it.

TheNewHobbyist on Oct 11, 2011 said:

Every model you upload is more impressive than the last, keep up the good work!

tbuser on Oct 11, 2011 said:

Thanks :)

Readywater on Oct 10, 2011 said:

Man, that is exciting.

ccotter247 on Oct 9, 2011 said:

Nice work! Yet again. With you it only gets better.

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