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Printrbot Simple Aluminum Extruder 40mm Fan mount 2013/2014

by metaled, published

Printrbot Simple Aluminum Extruder 40mm Fan mount 2013/2014 by metaled Mar 17, 2014

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Summary

This Fan Mount is designed for the 2014 Simple's Aluminum Extruder. It will require a 12v-dc 40mm Fan as well. It also fits the 2013 with aluminum Direct Drive extruder upgrade w/plate.
The 2013 Model Has the zip-tie almost in the center of the mount. The 2014 Has the zip-tie closer to the rear of the extruder mounting plate.
It is designed to fit precisely on the 5.8mm Wood Extruder mount. It requires a little force to apply it since it is a compression fit. I would suggest removing your extruder mount in order to install it.
Another hint, install the zip tie loosely, before installing the fan mount. It is extremely small area and you may have trouble trying to connect a zip-tie after it is installed. Be sure to let it cool completely so it is not expanded /warm before installing.
I printed it using 0.25 layer height and only using 2 perimeters. As with all custom parts, you may need to modify the part or print to make it fit your machine.

Instructions

The 2013 Model Has the zip-tie almost in the center of the mount. The 2014 Has the zip-tie closer to the rear of the extruder mounting plate.
It is designed to fit precisely on the 5.8mm Wood Extruder mount. It requires a little force to apply it since it is a compression fit. I would suggest removing your extruder mount in order to install it.
Another hint, install the zip tie loosely, before installing the fan.

see description for more info

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I have a question. How did you get the ptfe tube through the roller without pinching the tube, and stopping the filament from going through?

Jul 10, 2015 - Modified Jul 10, 2015
metaled - in reply to bbrown1951

I had a sampler pack from JT&T products, it includes several sizes, including thin walled version that fits precisely.
You are probably more familiar with the thick version that is commonly used for feed tube on a bowden style extruder. If you have one that is too large to fit, you may be able to split it with a razor knife and remove a small vertical section so that it would fit the hole. Since it is being used as a guide, that should work and remain in position. It should fit freely instead of compressing it to fit this extruder's hole.
If you look closely at the picture, you will notice there is 2 pieces of ptfe. The second one is slightly larger and does not go through the hole. It holds the smaller one in place, (before the roller). So it guides the filament. You could also trime the part against the roller and leave the ptfe guide touching bottom as well.

I only have the standard PTFE tube. It has a 2mm ID and a 4mm OD. So my thick PTFE would not allow the filament to pass inside the PTFE where it is pinched by the roller. The extruder has to pinch the filament to move it into the hotend.

Hi, your mount works a treat flipped for my PB Jr. Do you mind if I put the cleaned flipped files on Thingiverse?

Thanks for this. I mashed this up to make a Z-probe mount: http://www.thingiverse.com/thing:317581http://www.thingiverse.com/thi... By the way, without a fan, I have totally eliminated very frequent extruder jams by adjusting my motor pot. My extruder motor was always very to to the touch and now runs cool. See this thread: http://help.printrbot.com/Answers/View/49/Stepper+motors+getting+Very+Hothttp://help.printrbot.com/Answ....

Printrbot Simple Z Probe Mount

HI Steadcraft, I can't find the thread about adjusting the pots (as it's been two years and printrbot now view anything wooden as the "beta" phase and so no longer support it) , do you know what value I should have the extruder pot set to?

HI Steadcraft, I can't find the thread about adjusting the pots (as it's been two years and printrbot now view anything wooden as the "beta" phase and so no longer support it) , do you know what value I should have the extruder pot set to?

Very cool idea, I'm sure lots of people can use it.! As for the fan, right when the aluminum extruder came out, everyone had the jamming problem and were looking for ways to mount a fan. So I came up with this solution. I haven't needed it either since I adjusted my potentiometers as well. Still, seems there is a need for it. Might want to mix the fan with the probe. I am sure someone will be looking for it!

I was wondering the same thing...

Check the other comments on this project, I just replied to another user that had the same question. It contains a detailed description for 2 different methods. Hope this helps!

Nice... I was thinking of doing the same thing.. Let me ask.. where are you getting power for this fan?

I am using a dedicated 12v 30amp Power supply for my simple with three separate 12v leads. One powers the PB Simple's Printrboard, a second supply going directly to my heated Bed (switched on using a Solid State Relay to the printrboard's control jumpers) and a 3rd accessory lead that is powering a set of high power LEDs around my extruder and this fan via a separate toggle switch.

There is a way to get power direct from the Printrboard if you are not using a heatbed. You can use the heatbed's 12v lead and the unused e-switch negative terminal. A diagram and instructions are here: http://www.printrbottalk.com/forum/viewtopic.php?f=106&t=5945#p38355http://www.printrbottalk.com/f...

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