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Customizable Replicator Dual 5mm Drive Blocks

by MakerBobDesigns, published

Customizable Replicator Dual 5mm Drive Blocks by MakerBobDesigns Mar 23, 2013
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Summary

This is a revised drive block derived from http://www.thingiverse.com/thing:53125
I used OpenSCAD to mirror the STL files after I resaved them from Meshlab. They wouldn't load correctly before. I changed the size of the bearing axle to accomodate a 5x10x4mm bearing that is easily available from any hobby shop that carries 1/10th scale cars. I made the pivot screw hole slightly larger, and shaved off the top of the lever to fit in the replicator 1. There are mirrored versions for the left extruder as well.

Instructions

Just like the original, use 3 shells, 10% infill with .20mm layers. You can print these files as is if you have the bearings I got, or use the .scad file to adjust to your specifications. I might make this thing use customizer if it is ever able to load .stl files.
5mm bearing plate files:
Rep1 Right Plate 5mm.stl (Use for a single Replicator, or right side)
Rep1 Left Plate 5mm.stl (Use for the left side of a Replicator Dual)

To use the .scad file, download these files and put them into any folder together when you run it:
partfix.scad
ExtruderBase.stl
ExtruderCap.stl
ExtruderLever.stl (These are the original files, but fixed to work with .scad)

I colored the additional parts red, and the subtracted parts green. You can play with the settings to make your parts fit. Uncomment the begining lines to make your selected part.

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So as I'm printing out the Rep2 upgrade parts, because I was told that they would fit the Rep1 Dual... I'm finding out that those won't work on a Rep1 after all? I'm guessing the part you shaved down in the handle, is the culprit? Not wanting to fit under that block on top of the extruders?

I will wait for your confirmation, then print yours instead. Love your work man! And your attention to even the smallest of details!

That is the reason I trimmed the top of the levers. You can use the OpenSCAD file to make your own parts if your bearings are not the same ones I used. See thing details panel.
Bob

Please help me buy a spring for the extruder. Where can I buy it? Perhaps you could give a link to ebay?

Really good job man, appreciate the effort on all the little details

Thanks for the stl files that import into OpenSCAD!

No problem. I always look for a way to do things the free and easy way. I usually use AutoCAD to model, but I don't post those files, because it is ridiculously expensive. I have had great luck so far with stl files. Here is a quick list of some of my recent methods:

  1. Meshlab (free) is what I used for these files. I just opened them and exported as an stl. It can also easily fix holes in a broken mesh.
  2.  Mesh Mixer (free) is good to edit existing models as well. It has so many features, I find it a little hard for such a simple job as this was. 
  3.  OpenSCAD (free) is a great tool that is also useful to the newbie to programming. This particular file would be a good early excersize to learn basic functions. I hope the excessive comments are helpful to new users. I hope anyone who posts an scad file with the intent of others massaging it would think of new users as well. 

My last step before posting any stl file is to open it in Makerware and center it and make sure it is on the platform. I hope even the seasoned users appreciate these small efforts.

Thanks for your interest!

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