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Borg fan box for Ultimaker

by variador, published

Borg fan box for Ultimaker by variador Mar 17, 2013

Description

Different way to mount the fan for the Ultimaker. Guaranteed air flow from fan. There is the plain Jane model and the one some of you will be more familiar with. Can it get easier to print?

Recent Comments

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It is hard to remember now. I think it was wired on. The wire went through the upper fan screw holes and wrapped around the rest of the head. I was testing what would happen if the air really got to move with very little restriction. The hot end had been overheating and clogging leading me to think the fan could keep the hot end from overheating. In the end it was not the right idea.
The fan is needed with PLA to cool the plastic that has come out of the hot end. This is especially true on points and tips of the print that get printed over and over very quickly. Some of these spots are still hot and gooey while the hot end is four or more levels up trying to put more hot plastic on the plastic that hasn't cooled yet.
The UM2 is now set up to have a small fan on each side of the nozzle to help the new PLA cool as soon as it gets laid down proving the point.
how did you mount the fan ?

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Instructions

I could be honest and tell you all that I broke the fan housing that comes with the Ultimaker because I couldn't figure it out. Instead, I'll go with the idea that the fan wasn't able to move much air in that tight housing. There are comments elsewhere that support this claim. :-) My fan has always hung on the back of the extruder. I started to think that maybe cooling the plastic is more important than I thought after looking at all the other fan housings that have been made. With this simple piece, all the air form the fan is now hitting the newly extruded plastic. The airflow can be controlled somewhat by the height of the walls. If nothing else it might make you laugh! Stay cool Update; When I saw the picture of the plain jane model it said "Make it so".

how did you mount the fan ?

It is hard to remember now. I think it was wired on. The wire went through the upper fan screw holes and wrapped around the rest of the head. I was testing what would happen if the air really got to move with very little restriction. The hot end had been overheating and clogging leading me to think the fan could keep the hot end from overheating. In the end it was not the right idea. The fan is needed with PLA to cool the plastic that has come out of the hot end. This is especially true on points and tips of the print that get printed over and over very quickly. Some of these spots are still hot and gooey while the hot end is four or more levels up trying to put more hot plastic on the plastic that hasn't cooled yet. The UM2 is now set up to have a small fan on each side of the nozzle to help the new PLA cool as soon as it gets laid down proving the point.

<p>Ventilation is futile!</p>

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