Wallace++ (M8 edition)

by sponnet, published

Wallace++ (M8 edition) by sponnet Mar 27, 2013

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An enhanced version of the Wallace 3D printer.
Features a more stable X-carriage construction which balances the extruder body over 2 horizontally mounted rods. It uses less screws & bolts than the original Wallace.
Some features :

  • Y-mount.stl & y-bearing-guide.stl : An enhanced mount for centering the Y-axis belt. Gives you a more stable pull.
  • X-end2-motor.stl + X-end2-idler.stl : new motor mounts, align the X-axis horizontally
  • X-carriage.stl : carriage for the horizontal setup. Fits a wade extruder & any type of hotend, even the newer short JHead extruders...
  • base_end_2off.stl : enhanced base - puts the linear bearings as far apart as possible to enhance the stability of the print bed.
  • y_bearing_retainer_stopswitch.stl : bearing retainer including a ziptie stopswitch mount, for your Z-stopswitch.
    Update 20130430 : New Y-mount & bearing-guide uploaded.
    Update 20140809 : Removed obsolete parts


  1. Print these :
    • 2 x base_end_2off.stl ( base )
    • 3 x y_bearing_retainer.stl
    • 1 x y_bearing_retainer_stopswitch.stl
    • 1 x X-carriage.stl
    • 1 x X-end2-idler.stl
    • 1 x X-end2-motor.stl
    • 1 x Y-bearing-guide.stl
    • 1 x y-mount-nema17.stl OR y-mount.stl : use the nema17 version if you want to mount the stepper motor directly on the Y-drive , use the other one if you want to mount your Y-motor on your printer base.
  2. Additionaly also print these printrbot parts (http://www.thingiverse.com/thing:16990)

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I was looking into making a Wallace and I was wondering if you switch all the Rods both Threaded and non on this design to M8? Or is it a combination of M6 and M8 like punkrockseb?

I ask because I am also Redesigning his build the Wallace+++ to have a better base.
I am doing this as I am going to be embarking on a Large Build Scale Print Area.
I have 1M M6 and M8 Rods on Hold Locally. So you can take a guess as to my Print Area when I am done.
I just need to know about the print sizes on parts due to the fact I am switching from a QB Two Up to this.

As you can guess its due to my tiny Print area and Average Quality.

Did anyone succesfull mount a fan. Have printed some cooling duct fans but none of them fitted to my liking.
I don't have any problem with the extruder, but i want to cool the filament for bridging and small print objects.
If someone can point me a fitting stl. Thanks.

The scad zip file must be corrupt, shows as empty when I try to open it.

You're right - I uploaded a new version of the files. Let me know if anything is missing. The X-end scad has a parameter to render it with or without the motor fixture.

could you please upload the big and small toothweel that presses the filament to the extruder please..?

The extruder is this one : http://www.thingiverse.com/thing:18379/#files , you can find the files of the 2 toothed gears there.


Greg's Wade reloaded - Guidler, Tilt Screws, Fishbone Gears

The bearing holes in x_end2.stl and x_end2-idler.stl are still 14.5mm in diameter. LM8UU still won't fit.

Hi, I double checked the SCAD file , the diameter of the bearing holes is 15cm.
I added a ZIPfile with all the SCAD files so you can verify / adapt to your needs. The parameters are in wallace2.scad
Let me know if it worked... If anything is unclear, let me know.

Aug 9, 2014 - Modified Aug 9, 2014

Could you please provide some more photos so the assembly is easier ? Maybe the bottom part which is left out in the photo you've made.This would be really appreciated ! Thank you !

Also I have problems getting the LM8UU bearings into the holes in x_end_motor.stl. The hole has a diameter of 14.5mm and there is no scad file of it. Does this mean I have to grind until it fits ? Maybe this edition needs some overhaul so it actually works out of the printer...

This comment has been deleted.

I just finish install of this update to my printer, however hotend is close to my PLA printed carriage - I think it can have issue with temperature being too high. Do you have fan on your machine?

I did a fan mount from steel sheet, cut it out and bended to fit. Good for now

What parts do I use for the X belt Idler? Thanks

The file is missing 4 of the stl files : /

y_bearing_retainer.stl and y_bearing_retainer_stopswitch.stl give errors in Slic3r (the latter has a hole reported on import, the former also and after processing has overlapping or self-intersecting facets,...)
Is this a known issue that doesn't cause any (real) printing problems ?

you can check & correct the STL with a free version of netfabb. I'll try to upload a new version here.

I've uploaded repaired versions of the y_bearing_retainer.stl and y_bearing_retainer_stopswitch.stl - the manifold errors should be gone now...