Re: Filastruder Documentation and CAD/STL files
Viewed from the hotend, CW. Terminal with the red for is GND.
27 2013-05-25 23:00:40 (edited by jesse 2013-05-25 23:01:32)
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Re: Filastruder Documentation and CAD/STL files
elmoret wrote:
Terminal with the red for is GND.
Is that standard? It seems counter-intuitive given red and black wires. Oh well.
Re: Filastruder Documentation and CAD/STL files
jesse wrote:
elmoret wrote:Terminal with the red for is GND.
Is that standard? It seems counter-intuitive given red and black wires.
Depends which way you want the motor to turn. 
29 2013-05-26 00:55:58 (edited by jesse 2013-05-26 01:13:06)
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Re: Filastruder Documentation and CAD/STL files
Any tips for printing the electronics box?
Re: Filastruder Documentation and CAD/STL files
jesse wrote:
Any tips for printing the electronics box?
20% infill, PLA if you have it to avoid warping, otherwise a hot heated bed and a warm build chamber.
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Re: Filastruder Documentation and CAD/STL files
Can you recommend any tools for keeping the filament straight and winding it?
Re: Filastruder Documentation and CAD/STL files
jesse wrote:
Can you recommend any tools for keeping the filament straight and winding it?
Properly positioned, you only need the filament guide to keep it straight.
To wind it, a drill like in the video.
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Re: Filastruder Documentation and CAD/STL files
Do you know of a metal detector that can detect tiny pieces of metal in the filament?
Re: Filastruder Documentation and CAD/STL files
A metal detector would be cool, if something that sensitive isn't really expensive. I have clear ABS pellets that I bought from Ebay, and I like to run those first, because it is easy to look for contamination during the initial run. They don't seem to be available anymore unfortunately, I wanted to get more.
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Re: Filastruder Documentation and CAD/STL files
Would it be ok to chop up the filament that has the bits of metal in it and send it through again?
Running the printer for 4 hours is going to use all the pellets that came with the kit.
Re: Filastruder Documentation and CAD/STL files
jesse wrote:
Would it be ok to chop up the filament that has the bits of metal in it and send it through again?
Running the printer for 4 hours is going to use all the pellets that came with the kit.
You can, but it's not really going to clean anything out, only re-deposit debris.
I really included the 1lb so that people could clean out for "free". Otherwise, time to stock up on pellets!
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Re: Filastruder Documentation and CAD/STL files
Okie dokie.
I've been using the sacrificial pellets to test out multi-color filament experimentation anyway.
Will order more pellets.
Re: Filastruder Documentation and CAD/STL files
Is there anything we can do before to pre-clean the extruder? Do you know where the contamination is coming from, is it just debris inside or is it the auger rubbing a bit at first until it wears in?
I was thinking of a getting a drill with some fine grit sand paper attached to a pole and running that inside the piping to clean anything up, then running a cloth with some cleaner through it. Think that would help?
Re: Filastruder Documentation and CAD/STL files
That would probably make it worse, for two reasons.
First of all, we want the coefficient of friction to be high between the polymer and the barrel wall. Polishing the surface hurts that.
Second, it would only add more debris. I believe the majority of the debris comes from the initial cutting and grinding - even if you think it's clean, tiny particles are stuck to the inside wall of the nipple.
Re: Filastruder Documentation and CAD/STL files
No way to use compressed air - either the small cans or a full size compressor?
Re: Filastruder Documentation and CAD/STL files
rojer wrote:
No way to use compressed air - either the small cans or a full size compressor?
Definitely recommended. It still won't get everything out, though.
Re: Filastruder Documentation and CAD/STL files
So Tim what diameter screw are "we" using?
The ID of 3/4" pipe is supposedly 3/4" what auger size are you using? I see on Amazon there are some 11/16th ship augers would that eliminate some contaminants.
Ralph
Re: Filastruder Documentation and CAD/STL files
Ralphxyz wrote:
So Tim what diameter screw are "we" using?
The ID of 3/4" pipe is supposedly 3/4" what auger size are you using? I see on Amazon there are some 11/16th ship augers would that eliminate some contaminants.
Ralph
The ID of schedule 40 3/4" pipe is 0.824".
The Filastruder uses a schedule 40 1/2" pipe, which has a ID of 0.622". It also uses a 5/8" auger. 5/8" is 0.625". However, auger manufacturers all have a different idea of what 0.625" means. Some brands measure at 0.610", some at 0.570". Craziness!
Anyway, I'm 95% sure the debris comes from the cutting and grinding done on the barrel before assembly, not the auger itself. The edge velocities are so low, and melt pressures/side loading forces are so low, that I don't think significant wear is occurring during operation. It's not super easy to be completely sure it's cleaned before assembly, so I recommend 6-8 hours of running to flush out any contaminants. Even better if you have clear ABS on hand to use!
Hope that helps. I've gone round and round on this and have probably thought of most things, but am always open to suggestions!
Re: Filastruder Documentation and CAD/STL files
Hey Tim
Can you turn the elect housing so that the top prints down. I tried to do it but I keep missing something and it won't export.
Thanks
Rodney
Re: Filastruder Documentation and CAD/STL files
REdington wrote:
Hey Tim
Can you turn the elect housing so that the top prints down. I tried to do it but I keep missing something and it won't export.
Thanks
Rodney
Re: Filastruder Documentation and CAD/STL files
Thanks Tim
That worked
Rodney
Re: Filastruder Documentation and CAD/STL files
Tim, any word on the enclosure? And will the new auger change anything, since it is shorter?
Re: Filastruder Documentation and CAD/STL files
Nimikin wrote:
Tim, any word on the enclosure? And will the new auger change anything, since it is shorter?
Enclosure is up to OSP, not me. Their original plan was to release at the end of May. They're here on the forums if you want to shoot them a PM.
In the meantime, http://www.thingiverse.com/thing:92815
Things will change a bit with the new auger. OSP's version will be new auger only. Drandolph's version is likely old auger only.
Re: Filastruder Documentation and CAD/STL files
elmoret wrote:
Enclosure is up to OSP, not me. Their original plan was to release at the end of May. They're here on the forums if you want to shoot them a PM.
In the meantime, http://www.thingiverse.com/thing:92815
Things will change a bit with the new auger. OSP's version will be new auger only. Drandolph's version is likely old auger only.
Thanks Tim, I'm not in too much of a hurry, since I'm a July kit, I just know we talked about the end of May earlier. I had seen the one on thingiverse. I'm actually thinking on a sheet metal box, since I won't have to finagle cnc time from the school.
Re: Filastruder Documentation and CAD/STL files
Nimikin wrote:
Tim, any word on the enclosure? And will the new auger change anything, since it is shorter?
I know we said that by the end of May we would release it. My plan is to release it once we start cranking them out for our June machines. We are still making tweaks to the enclosure and I don't want to release one that is not perfect. Sorry about the wait guys.