Eric's Wade's Collaborative Dual Feed Extruder
Description
I'm calling this Wades Collaborative Extruder because so many people have added so many great things to the Wades, Without all of you this would not be possible.
Instructions
Build like other "Wades" variant extruders, but with Dual Hobbed bolts.
There's quite a bit that still needs work.
The new Latch for the top needs a good strong spring in the middle.
The Drive gears need to be matched to the motor gear. I just need to add the STL's and do a little Mods to make the little gear taller. but right now it's setup with an extra nut on the threads to hold the little gear to the herringbone gears. (I didn't make the Herringbone, those were designed by others so I've left that out.)
I need to Mod it for the Makerbot Groovmount. (5mm disc insert)Is Jhead right now.
I need to buy more skate bearings to complete mine for testing.
Concievably this could work for faster printing once it's refined.
If you need any changes or exports please ask, I'm up for anything you want to help with or that you have better ideas for.
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I am not where I can access FreeCAD right now, but if I remember right, you can import a .stl file into FreeCAD. Then you create an object from the mesh. Then you create a solid from the object. Finally you export the solid using the .iges or .stp format. What you get is a solid with a whole of triangular surfaces (even on the flat sides there will be a lot of faces). This can be imported into a regular 3D CAD program.
if you need more bearings contact me.
OR_ go to
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gt;http://www.ebay.com/itm/270926...
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amp;_trksid=p3984.m1586.l2649.
now as to hobbed bolts must i make some just for this type extruder?
if so what spec's are needed?
Take a look on SeeMeCNC extruder. It is double action too but more simple
I see their extruder drive. it has two Hobbed sections, but one is for 3mm, one is for 1.75mm. either way it only contacts the filiment at 1 location. My Dual Drive extruder contacts the filament in two locations, making it much less likely to strip out. This Dual Drive Extruder supports both 1.75mm and 3mm ABS/PLA.
Excellent. I just did a three stage for Nylon using a similar configuration. Got to get the gears smooth to keep the total mechanical drag down to a minimum. It is definately a powerful "push".
License
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Is it possible to combine this design with this: http://www.thingiverse.com/thi...
Dremel drill bits are easier to get, than hobbed bolts (and cheaper). I've actually searched for dual feed extruder like this.