Wade’s Geared Extruder Visual Instructions

Providing a visual guide to constructing Wade’s Geared Extruder.

The document is available as a PDF in several resolutions.

The source files for this document are available on github, and any issues can be raised in the project issue tracker.


  • Jim
    April 11, 2011 - 1:55 am | Permalink

    Thanks! I was just thinking to myself how great it would be if there were some really clear Wade instructions like the PRUSA set .. and poof! here it is!! Thanks for your service to the community.

  • Jesus
    April 20, 2011 - 6:13 pm | Permalink

    Yes, thank you. These super clear instructions really helped me build. It saves people time instead of having to keep using google images for different angles of other user’s semi-built extruder parts.

  • Shez
    May 8, 2011 - 3:44 pm | Permalink


    Your instructions are great – very clear. I’ve just done most of the mechanical build of a Prusa Mendel with them and I’m a total novice !

    many thanks

  • david
    May 30, 2011 - 1:17 am | Permalink

    Great document for wades. You don’t know how much time it has saved me. Keep it up!!!

    One comment. There are two ways to mount the wades to the Prusa carriage. You show the Parallel method. I think the perpendicular wades method allows more build area. Can you describe the two methods when you update the document? Perhaps telling the builder his options? Pros and cons?


    • May 30, 2011 - 6:52 am | Permalink

      Hi. Good idea – i’ve noted it here and will do it at the next opportunity. Cheers, Gary

  • danielpublic
    June 9, 2011 - 12:24 pm | Permalink


    I found a minor error on page 12:
    “Attach the extruder to X carriage (this can be performed later, but is could be easier now.)”

    “Attach the extruder to X carriage (this can be performed later, but IT is/could be easier now.)”

    Very nice documentation you have made!

  • Kaz Walker
    July 4, 2011 - 6:42 am | Permalink

    Great job on the instructions, reminds me of Lego Technique or K’Nex instructions. I think I found one minor error though, in the parts list I didn’t find the set/grub screw used in step 14.

  • dandan316
    September 2, 2011 - 7:34 am | Permalink

    Thanks for all of your work on this! A review of the Prusa visual instructions leaves me impressed, but I am unable to view the instructions for the extruder as I receive a “file not found” error. When you have an opportunity, would you please kindly check the link? Much appreciated.

    • September 2, 2011 - 8:48 am | Permalink

      Hi there, I just checked the links and they all seem to work for me. If you could let me know exactly which one I will investigate further. In the mean time the PDF files are directly available in the github project (link).

  • Franck Liguori
    December 22, 2011 - 3:34 pm | Permalink

    Dear Gary Hodgson,

    First i’d like to thank you for your great intstructions, it helps me finish my prusa mendel easily and understand quitly well the working of a prusa.
    I’m actually studying the oportunity to sell prusa mendel kitted and mounted and would like to know if the use of your manual is allowed.
    Also what should be respected to show all the respesct due to your work?

    I can’t find your e-mail so i hope we’ll be able to get in touch through this message!

    Thanks again for your help,

    Best regards,

  • Richard
    February 5, 2012 - 9:31 pm | Permalink

    Outstanding work! It is my intent to create an extruder to mount on my CNC milling table. With these instructions, I should be able to create that portion, but I still have man y questions on the hot portion for the project. Where can information be obtained for these details, e.g. temperature, hole size, etc. Thanks.

  • Matthijs
    March 7, 2012 - 11:12 pm | Permalink

    Hi there, thank you for this tutorial, but isn’t there one chapter missing? The assembly of the extruder? I managed in the end, but it was a bit hard to ding out how the parts should be put together.

    • Matthijs
      March 7, 2012 - 11:14 pm | Permalink

      Never mind 😉 this was in the wrong section!

  • Pingback: Extruder Assembly and Materials list | Josh Log

  • July 28, 2012 - 2:39 am | Permalink

    Great guide! Thank you! I just used it to assemble my extruder today. Also I linked your page on my build blog of the Mendel90 reprap on http://joshlog.com/extruder-and-materials


  • September 11, 2012 - 5:58 pm | Permalink

    You’re my hero. These documents have made this much easier for me.

  • March 8, 2013 - 4:44 am | Permalink

    Excellent guides Gary! many thanks for putting these together!!