Build size advice

This topic contains 4 replies, has 4 voices, and was last updated by Profile photo of Mark Mark 2 months, 2 weeks ago.

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  • #29477
    Profile photo of Mark
    Mark
    Participant

    Hi everyone,
    I’m currently printing out my parts. I’m printing with petg 70% infill and 6 perimeters for all parts. I picked up 3 10 foot lengths .065″ wall stainless steel pipe.

    This will only be used as a cnc router, no intentions on 3D printing with it. Looking to mill 1/4″ aluminum, mdf (3/4) and acrylic. The aluminum sheet I need to mill out of is 24″ x 24″. Part is alittle under 21″ x 21″. Going to be ordering the spindle in the parts list.

    I’m trying to figure out what my best bet for my build size. I was thinking about cutting two of the ss pipes into threes and that would give me 40″ for x and y. Or should I go off of the cut calculator and make the rails 34.4? Is 10.4″ pretty accurate to add on? Hate to cut the pipe to find out I can’t fit my 24″ piece under it. Does it leave any wiggle room? Would I see a difference with 34.4″ vs 40″?

    Z height, should I stick with 1.5″ or go with 3.5″ and just build up my material depending what I’m cutting? Do I need to calculate in for bit length as well?

    Any suggestions? Thanks for your time! Excited to get this thing built!

    #29479
    Profile photo of Jeffeb3
    Jeffeb3
    Participant

    You will probably be fine. You can always cut them shorter.

    #29486
    Profile photo of Ryan
    Ryan
    Keymaster

    6 perimeters isn’t a good idea the thin walled stuff won’t get infill and you will end up with a weak part, 2-3 more causes problems.

    #29498
    Profile photo of Barry
    Barry
    Participant

    All my petg parts are 3 perimeter at 50% infill.

    #29509
    Profile photo of Mark
    Mark
    Participant

    Thanks for the replies guys..

    The petg orange that I have was too transparent for my liking, so I up the perimeters so that you couldn’t see the infill. Never dawned on me about strength. I’ll back off perimeters.

    Jeff,
    Thanks, I’ll give 40″ length a try.

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