3-axis CNC Milling Machine (UHPC)

Self engineered and build servo driven milling machine

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Self engineered and built 3-axis CNC milling machine.
- mineral casting
- selfmade ATC spindle cartrige
- selfmade ATC (parallel kinematic)
- Servo driven on all axis

You can find the full build video here:

Build video

  • 4# - Spindle head and pneumatic cylinder for ATC

    Adrian Prinz08/25/2021 at 13:46 0 comments

    The spindle head is made of lasered plates and holds the spindle cartridge (old version of the spindle flansh in the picture below)

    Assembled spindel head (old version of the water cooling):

    Spindle belt drive:

    Self engineered pneumatic cylinder for the draw bar:

    All assembled and painted (cylinder fixture is temporary..):

  • 3# Spindle head and X-Y-table

    Adrian Prinz08/23/2021 at 16:27 0 comments

    A belt pulley was adapted to the 2.2 kW Spindle motor (China Spindle - used as motor) to drive the spindle cartridge

    Components for the X-Y-table were machined on the lathe

    Side stiffeners for the z column (lasered plates)

    Assembled Z-axis, side stiffeners and X-Y-table

  • 2# Z-Axis and Spindle

    Adrian Prinz08/22/2021 at 14:47 0 comments

    The back of the Z-Axis was casted in UPH concrete

    At this point i decided to go full in and build up the overall machine from scratch. I designed it in CAD and continued with the Spindle cartridge, since it is the most difficult part.

    Turning the cartridge

    Grinding the cartridge

    Turning the spindle shaft

    Machining the draw bar

    Finished draw bar (hardend to about 54 HRC - C45k)

    Spindle watercooling mandrel

    Finished spindle cartridge (after some iterations.. :) )

    Assembled in the spindle holder

  • 1# Base material and first parts - project idea

    Adrian Prinz08/22/2021 at 14:31 0 comments

    Without the actual intention to build this machine at the beginning, I started of with random cut offs from ebay. (Just planed to improve my former CNC milling machine)

    I cut the components roughly to length..

    First I  used the bench top lathe (that was borrowed to me for a different project :) ) to get the dimensions of the parts on point

    First finished parts...

    Critical dimensions (bearing seats) were machined on the bench top lathe

    All components were machined just by using basic tools and the bench top lathe - no milling machine involved :)
    Test fit of the components..

View all 4 project logs

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JoshuaDHay wrote 01/24/2023 at 01:08 point

What was the cost of this, if you don't mind me asking…this has great build quality and in my opinion it is worth as much as the commercial products! Great work and have fun making! :)

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Adrian Prinz wrote 06/03/2023 at 16:37 point

Thank you! The overall cost, excluding the servo system, was around 1.5k Euro. The servos doubled that :)

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Jörg Schnur wrote 08/26/2021 at 13:48 point

Great project, I admire the hight quality of the results. It motivates me to build similar things.

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Adrian Prinz wrote 08/26/2021 at 15:34 point

Thank you - I appreciate it! Glad to hear this, that's the reason why I share it :)

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Dan Maloney wrote 08/18/2021 at 22:17 point

Phenomenal build quality! I'd love to see a build log for this one.

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Adrian Prinz wrote 08/19/2021 at 16:17 point

Thank you! Good point, I will add a few pictures to the log :)

  Are you sure? yes | no

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