Re: Thinking about making a vapor bath chamber for stores
Try putting the print in the freezer first. It's possible that it is spending so much time in the heated pot that it is warm enough that not much acetone is condensing on it.
Re: Thinking about making a vapor bath chamber for stores
What if you could eliminate any heating of the acetone? My idea would be to use an ultrasonic humidifier, the ones that say "cool vapor". These things produce clouds of vapor the second you turn them on, and don't use any heat. That may solve some problems if it works. I probably should have made one, proved it, and started my own business, but I'm already working on a start up which is the reason I have a printer in the first place, and it isn't the spirit of open source
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Re: Thinking about making a vapor bath chamber for stores
You can use cold vapor to smooth ABS. The heat works much faster and I can imagine requires less acetone.
I've vapor smoothed cold in a 20f warehouse without heating and got fair results.
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Multiple SD2s- Bulldog XL, E3D v5/v6/Lite6, Volcano, Hobb Goblin, Titan, .9 motor, Lawsy carriages, direct Y drive, fishing line...the list goes on
Filawinder and Filastruder #1870.....worth every penny!
Re: Thinking about making a vapor bath chamber for stores
I havnt done this trick yet just following topics on it still. one guy said he used a big glass jar with lid sitting on heated printer bed at a temp just enough to turn like a tablespoon full into vapor then left items in like 20secs if I remember right. that sounded like best idea so far to me like he tested several dif ways. its kinda like Photo developing process lab done at home hehe. your headed the right direction looks like
Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs
Re: Thinking about making a vapor bath chamber for stores
erlingiii wrote:
What if you could eliminate any heating of the acetone? My idea would be to use an ultrasonic humidifier, the ones that say "cool vapor". These things produce clouds of vapor the second you turn them on, and don't use any heat. That may solve some problems if it works. I probably should have made one, proved it, and started my own business, but I'm already working on a start up which is the reason I have a printer in the first place, and it isn't the spirit of open source
that would be atomizing a combustible liquid and make explosion very easy upon ignition source
Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs
31 2014-10-26 19:58:21 (edited by Tomek 2014-10-26 19:58:59)
Re: Thinking about making a vapor bath chamber for stores
Yeah, I don't see why you think it would be any different than heating the acetone?
What I've done is used a pressurized spray canister for mechanics use, filled it 1/3 with acetone, and the rest pumped to 80-100PSI. Worked OK as a fine film spray of acetone.
In my case there actually is a slightly elevated risk, because I'm pressurizing the oxygen in the air, but it's still most just nitrogen.
But the sonic humidifier is something many people have mentioned, in good thought. I haven't found a cheap humidifer element though that is protected from damage from acetone. I hear a lot of people have their units fail when they try it with acetone.
Re: Thinking about making a vapor bath chamber for stores
heating it into a vapor inside closed container is not half as bad as spraying atomized fumes into the air like a fuel injected dragster only not contained LOL BIG BOOM! fire burns etc
Solidoodle 2 with Deluxe kit cover & glass bed with heater. and 2nd board SD2 used not 3rd and alum platform not installed yet still wood. also need cooling fan installed to board. use Repetier Host couple vers. Slic3r also have all free ware STL programs
Re: Thinking about making a vapor bath chamber for stores
Ok ok, I didn't put much thought into it. I guess I was visualizing a chamber similar to a paint booth, where it would be a contained system. The op was talking about a commercialized product. My thought was for a sealed chamber, put you part in, it gets an instant vapor bath, the chamber is then vented through a condenser and recycles the unused acetone. In reality we regularly atomize flammable liquids, albeit not necessarily acetone, and have designed systems that do it safely. I wouldn't suggest filling your kids humidifier with acetone and smoothing parts in your garage or basement, but it would be more effective than heating the acetone. I imagined the process to be similar to powder coating in that you could refrigerate the part give it a vapor bath and allow what condenses to react with the part, if it needs round two then repeat.