Beefed Up Replicator Extruder Bracket
Derived from
Description
So, I took the .stl file from the replicator build files and shrunk the holes down to accept paintball style macroline fittings. These fittings are much beefier and thread in through the full thickness of the extruder bracket. This should create a stronger and more durable connection that will last.
I also had to move the holes about 1/10 inch back from the front of the machine to center the holes over the extruder entry holes. The stock macroline connectors have a much looser tolerance so they can stand to be slightly off center. Whereas my macroline fittings need to be better centered to work.
Added benefit? You can choose any color you like to print this in! :)
Instructions
( ansgear.com/ProductDetails.asp?ProductCode=MACROFITTINGSTRAIGHT )
You are going to need 2 of these, since this part is for the dualstrusion replicator.
2 - Download the .stl file from this thing :)
3 - Print out using THREE shells. The macroline fittings will be cutting their own threads into the part when you screw them in. I used 10% fill, but that number isn't quite so important with so many shells on a thin part.
4 - carefully clean out the 2 smaller holes that the screws thread through. I didn't worry so much about the exact size. I believe they are m3 screws, but I just picked a close drill bit from my collection and spun it in the hole carefully till the screws threaded in comfortably.
5 - carefully thread both of your fittings into the part. Be sure that they are going in perpendicular to the part. This is merely aesthetic since the filament will be able to handle a slight angle. But why not make it look pretty if you can? :)
6 - re-install on your machine just like you un-installed the stock part.
Note, I also have installed on my machine the wire bundle strain releiever part. (Thing link: thingiverse.com/thing:21570 ) So don't be confused about that other natural colored ABS part sticking up from the extruder bracket.
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Can you upload a STEP, IGS, or SLDPRT of the bracket? I have some 1/4" NPT fittings lying around and I'd like to modify the model to accept them.
Thanks!
For future reference, the Thing for the Replicator 1 from Makerbot has a zip file with all the SolidWorks files (.sldprt) for the Replicator 1, including this wire filament extruder guide.
I don't know what any of those are unfortunately. Is there a piece of software that I can use to convert either my sketchup files or stl files to one of those formats for you?
I noticed you have a little white block on top of this new part, apparently to help terminate the black flex sleeve more solidly. Is that part on Thingiverse too?
Thanks!
Amazing! My filament guide just snapped loose last week, and here's an elegant fix!
So that's what that blasted creaking sound is!
I'm new to using a printer, so at first I thought it was a filament-slip, but later turned to mystery once I couldn't "feel" the noise on the filament itself. It makes sense that it's those one-way teeth, because one of the fittings even popped out before my first print.
I do believe I'll be prin
ting out this thing so I can upgrade the connectors, along with the strain-relief you linked that replaces the awkward plastic tube that just seems to get squished.
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FWIW, I've seen two Replicator 1's for which the holes on this part need to be moved FORWARD about 0.1 inch. So, while some Replicator 1's may have needed the holes moved back about 0.1 inch, others seem to need it left as is (not moved back).
I guess that the black plastic pieces aren't too consistent in manufacturing? Or perhaps they're reversable somehow and the top/bottom holes aren't the same.
FWIW, I derived a version of the bracket with the filament guide holes at the original MBI centers, but shrunk in diameter to accommodate the macroline fittings.