Simple platform cooler

by Renosis, published

Simple platform cooler by Renosis Mar 1, 2011
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This is a simple mounting system for a fan. It was designed for a MakerBot Thing-O-Matic. I am pretty sure it will work for a cupcake. I needed some simple solution while I wait for my MK6 stepstruder. I was trying to print cube gears by Emmett http://www.thingiverse.com/thing:6073 (observe picture: Black print before fan, Blue print after fan). Anyway, I needed something easier to install, adjust, repoint and remove than Around the Nozzle Cooling http://www.thingiverse.com/thing:6173 by Scanlime or Ducted fan http://www.thingiverse.com/thing:5756 by Iwo, which are far better solutions than this. But from my understanding, I won't need it with the stepper extruder because of the 'cool' skeinforge plugin.


You can use Quarter inch dowels to put it together or you can do what I did and get Plastruct polystyrene rods, which I linked to at the bottom or go to your hobby store, every one I have been to has a Plastruct Polystyrene stand. You will also need the 6 bolts and 6 nuts listed. The square bracket and the two rod mounting thingies in Fan-1-mount.stl connect the fan to the rods. The parts in Fan-2-Mount connect the bracket to the Z platform. Just look at this pictures, you'll figure it out. I don't have my fan controller hooked up right now, because I don't have it yet. Make sure when you cut the rods, you mind where the Z-platform is going, don't make them too long, or you'll bang it into something when the bot prints. I don't have exact measurements, but the Rod going X wise is about 16 CM. The two rods going in the Y direction are about 8 - 10 cm.

The connectors could probably be made alot smaller but this was a temporary solution and I am probably not going to fix it. It works perfectly like it is. Of course around the nozzle cooling or ducted fan would be better, because this doesn't reach the back of the print too well and it cools the nozzle having the fan blow on it. And these might be a better solution too: http://www.thingiverse.com/thing:6758 or the classic http://www.thingiverse.com/thing:6471 .

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I like it, but will it give you a buzz like this one?




Nope, but I can now buy and sell you with single-walled calibration cubes. :]

You've dropped the belt on your ABP. I did the same thing and got the same result (with heart gears). You don't necessarily need a fan: I just turned the heat down to 100C and the gears print fine. I think the slight airgap of the belt prevents the overhang of the gears from getting as melty. With direct Kapton there's much more heat radiated up.

@BenJackson, Ya, I had read your comments on... I forget where, I think it was one of the simple platform trick by either ScribbleJ or Haqnmaq... I had lowered my HBP temperature to 100 like you suggested in those comments. I don't know if it would have worked or not, because I wasn't getting good print to platform adhesion at that temperature. At 130 degrees, my prints need to be removed from the build surface with a prybar.

Changing the ABP temperature does little or nothing to cure the problems with these gears, which tend to occur on the top layers, not the bottom.

Lowering your printing temperature is asking for trouble, as it increases the friction on the filament and the delrin/MBI filament pusher is underpowered already.

Using a fan, as far as I can tell, is actually the best solution.