RH1N0s adventures with MPCNC

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This topic contains 6 replies, has 4 voices, and was last updated by Profile photo of Ryan Ryan 1 year, 6 months ago.

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    Profile photo of RH1N0

    I am an Austraila based hobbyist who built a MPCNC to compliment my REPRAP Prusa I3 printer. I will update this first post with details of my machine and sources that I find useful.

    Machine specifications:
    Machine type: MPCNC International Edition.
    Print material: ABS plastic.
    Pipes: 1000 mm X axis pipes, 800 mm Y axis pipes, 340 mm Z axis pipes, 120 mm leg pipes. All 25.4mm diameter galvanised steel.
    Bed size: approx 700 x 500 x 100 mm (a conservative estimate for a range of tool heads).
    Build time: approx one month of printing, ordering and gathering followed by 2 days of assembly.

    Parts sources:
    25.4mm galvanised steel pipe: http://www.bunnings.com.au/metal-mate-25-4-x-1-2-1m-galvanised-steel-round-tube_p1130448
    Local source for CNC electronics and hardware: http://stores.ebay.com.au/learcnc/
    Local source for fastener hardware: http://stores.ebay.com.au/Fasteners-Galore/
    International source for misc parts at lowest prices (but higher risk & slower shipping): http://www.aliexpress.com

    RH1N0s verdict:
    The MPCNC is probably the most versatile and cost effective hobby CNC platform I have come across, and an excellent progression from owning a 3D printer. Can’t thank Ryan enough for his efforts and for sharing his design.
    I’m glad I decided on building my own REPRAP style 3D printer as the skills and knowledge gained have transferred well to this project.

    Profile photo of RH1N0

    With the machine in its final stages of assembly, I decided to try some pen plotting. This has been a good way to tune the machine and gain some experience with the new software.

    The following pen plot is done with a 0.4mm felt tipped pen on A4 paper. I used Inkscape to generate a vector graphics .dxf file from a .jpeg image, Estlcam to create the toolpath .nc file, and then Repetier-host to generate the .gcode file for loading to the MPCNCs SD card.

    I hadn’t spent much time on bed leveling and you will see me make a slight adjustment to the bottom RH leg when I noticed the pen starting to drag.

    Profile photo of Asho777

    Nice build RH.

    Thank you for the info on materials used and source, will be very helpful for others.

    When I first tested my machine I found that a ball point pen, disassembled and a spring added to the ink tube worked great.
    This helped until I leveled most components up.

    Good luck with it.


    Profile photo of Ryan

    Thanks for the kind words.

    Profile photo of 3dTI

    Very nice build mate. Congrats 🙂

    Profile photo of RH1N0

    I followed Greg’s tip and replaced the felt tip pen with a modified ball point pen. Works a treat!

    Spent a day learning about the Traveling Salesman Problem and made the following plot using Stipplegen, Inkscape, Estlcam and Repetier-host.

    Profile photo of Ryan

    That is so cool. Stipplegen seems awesome as well. That makes this plotter so much easier to use!

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