Eckstruder Wallace Edition

by Komb, published

Eckstruder Wallace Edition by Komb Jan 7, 2013

Thing Info

5309Views 674Downloads Found in 3D Printer Extruders
Report Thing


Note: Designed for 3mm Filament

Beefed-up Fan mount and added nut traps to it.

Ducted Fan add-on - Thing: 899166

Added new idler that works with non Eckertech hobbed bolts. May help with 1.75mm. Included modified .scad file so you can adjust as needed.

I like the Ecsktruder better than the Gregs, Wades, hinged, .....

But attaching it to the Wallace required some cutting and an extender for the smaller J-heads.

So, I melded the Extender to the Ecsktruder Base.

Now it's one print and the filament has less distance to travel.

Note: The extender edge is slightly off the bed. The print worked for me, but your milage may vary. If soemone can help me get the plate side verticies lined-up, I'd apreciate it.

UPDATE: Now with a grove for easier wire placement. Sorry, still not fixed the other problem.

UPDATE 2: Moved the HotEnd mounting holes down! Now all the vents on the small J-Heads are exposed and there is more clearance below the X-Carriage. Fixed 90% of the printing problem!
Also enlarged the hot-end opending. Still snug but much better.

UPDATE 3: Now with recesses for the hot-end screws!


Print Wallace Body and Mirrored Ideler.
Print Eckstruder gear set.

Assemble as per Eckstruder Prusa.

Note: hot-end opening is tight! Nolonger as tight as the original Extender.

More from 3D Printer Extruders

view more

Thing Info

5309Views 674Downloads Found in 3D Printer Extruders
Report Thing

Liked By

View All


Eckstruder Wallace Edition by Komb is licensed under the GNU - GPL license.

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag. Print Thing Tag

I found that if you roll some Blue tape around the perimeter of the bearing then sand out the inside of the idler a bit, then this will work with 1.75 filament. The main problem I am having is connecting this with your rack and pinion X carriage with enough room to mount a fan and Z-probe. any suggestions?

Ducted Fan add-on - Thing: 899166

I haven't yet tried a Z-probe on any machine. Nor have the hardware to make one.

However, someone could make a ducted fan with Z-probe could probably be figured out...

Did anyone ever get this working with 1.75 mm filament?

It's the only part I have left to print for a Wallace G1 build

Aug 20, 2015 - Modified Aug 20, 2015
longjohn119 - in reply to longjohn119

I got a hobbed bolt today that was listed as working for both 1.75 or 3 mm filament, installed it and it works just fine for 1.75 mm filament with this extruder. However I'll probably drill out the filament feed holes in the top and bottom and insert some Teflon tubing just to play it safe.

Other than that I don't see any reason why this won't worked as designed even with 1.75 mm filament

Thanks for the update.

Thanks for these great designs.

It'll likely be a few more weeks before I find time to finish this (I have a big lake depth mapping project taking up most of my free time) but I'm really looking forward to using this Wallace G1 design. If I can get good results from a modified TwoUp then I anticipate getting excellent results from this printer. And at the end of the day I won't have much more into this than I put into the TwoUp and have extras like a heated bed and the Smart Graphic Controller.

This comment has been deleted.

Is this for 3mm...I tried with 1.75mm and the filament wont make contact with the hobbed bolt no matter how much I tighten the tensioner.

Dec 4, 2014 - Modified Dec 4, 2014
Komb - in reply to cris11368

Yes, It's for 3mm filament.

I don't yet have a printer that uses 1.75mm filament.

However, I think I'll start on a 1.75mm design.

Anyway you could possibly modify it to work with 1.75. I had to hack the hell out of my printer to get an extruder mounted to it and I want the first thing I print to be a replacement.

It'll take some time and testing. I have to modify the .stl files directly, as I don't have the original Eckertech files or program they use.

You might want to look at using Shyloh's Extruder (thing:41502) With the extender (thing:30561) I incorporated into this design. You might also need a small bit of 3mm brass pipe with a 2mm iner diamater to reduce the extender.

Shyloh's Extruder
Extruder plate for wallace and makergear hot-end or j-head
by pomalin

I think this (thing:174561) would be a good extruder+carriage if I could adjust the rod spacing to fit the my current 30mm.

Radus Prusa i2 Vertical X-end X-carriage Extruder mount
by radus

What printer or type of printer are you using?

Wallace style. With vertical x carriage like yours. Just have gt2 belts instead of rack and pinion.

Just added a modified Idler block that may help. Plus the .scad that created it so you can try re-positioning the bearing if not close enough as is.