Tiny Pegasus Bas-Relief

New Home Forum Mostly Printed CNC – MPCNC Your Builds – MPCNC Tiny Pegasus Bas-Relief

This topic contains 8 replies, has 6 voices, and was last updated by Profile photo of Curt Curt 1 year, 2 months ago.

Viewing 9 posts - 1 through 9 (of 9 total)
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  • #11409
    Profile photo of Mike
    Mike
    Participant

    I ran out of MDF for the project I was working on, but wanted to get some more machine time in. I very casually set up this job from an STL found on a Hungarian website, and the result blew me away. It’s not like I was doubting the capabilities of MPCNC at any point, but this came out so much better than I anticipated. Penny for scale.

    #11413
    Profile photo of Leo69
    Leo69
    Participant

    Very impressive!

    #11416
    Profile photo of Jason
    Jason
    Participant

    Wow… amazing. What kind of tool did you use for such small fine details?

    #11421
    Profile photo of Mike
    Mike
    Participant

    Thanks, guys.

    I used a 0.2mm 20degree V-bit carbide engraver. ESTLCAM did the toolpaths for me. The g-code generation takes a little bit of time since the precision has to be smaller than the radius of the tool (0.04mm in this case).

    #11434
    Profile photo of David Anderson
    David Anderson
    Participant

    Very Nicely done!
    How long did the carving take? What feed rate and depth of cut were you using with the 0.2mm bit.

    #11448
    Profile photo of Mike
    Mike
    Participant

    Thanks! The cut took about 1 hour and 45 minutes. I was doing a 1.5mm DOC at 26mm/s w/ 15% step-over. The deepest part of the cut was about 3.5mm. I have my spindle on a rheostat, and it was turned almost to the bottom; not sure what RPM that puts me at, but I slow it down until the chips look like, well, wood chips… These are some of the first cuts I’ve done on wood, all of my previous machining experience is in aeronautics alloys (inconel, hastelloy, etc.). I’m still very much a novice at wood feeds/speeds I’m afraid, and not knowing how fast my spindle is turning is kind of driving me nuts.

    #11659
    Profile photo of alexpewpew
    alexpewpew
    Participant
    #11666
    Profile photo of Mike
    Mike
    Participant

    Holy crap! I didn’t know those existed. Ordered. Thanks!

    #11678
    Profile photo of Curt
    Curt
    Participant

    I ordered one also. I found a similar one on amazon for 14.99 so I hope it works

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