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IndustryArena Forum > Events, Product Announcements Etc > Polls > How fast is your homemade CNC?

View Poll Results: How fast can your Homemade CNC cut?

Voters
639. You may not vote on this poll
  • less than 10 IPM (4.2mm/s)

    45 7.04%
  • 10-50 IPM (4.2 - 21 mm/s)

    186 29.11%
  • 50-100 IPM (21-42 mm/s)

    145 22.69%
  • 100 - 300 IPM (42 - 127 mm/s)

    157 24.57%
  • 300 - 600 IPM (127 - 254 mm/s

    54 8.45%
  • faster than 600 IPM (254 mm/s)

    52 8.14%
Page 1 of 5 123
Results 1 to 20 of 95
  1. #1
    Join Date
    Jun 2005
    Posts
    476

    How fast is your homemade CNC?

    How fast can you cut with your homemade CNC?

    Click on your maximum cutting speed (for whatever materials you commonly cut).

  2. #2
    Join Date
    Jun 2003
    Posts
    1365
    cutting speed is based on spindle speed, theres also rapid speed,
    my old setup, I would cut aluminum up to 50ipm, now up to 20,
    I seem to get pretty stable rapids up to 200ipm but have it at 120 to make sure.

    Jon

  3. #3
    Join Date
    Oct 2004
    Posts
    742

    Turbo CNC has to wait above 120 ipm

    I am using a 233 Mhz computer and above 120 ipm the axis sometimes pause to get additional data for the cuts.

  4. #4
    Join Date
    Mar 2004
    Posts
    761
    It can get over 100 IPM, but is turned down. That let's me have more time to hit the e-stop if needed.
    Wayne Hill

  5. #5
    Join Date
    Mar 2004
    Posts
    21
    mine can cut at 75 IPM.
    "When in Touble, You Call DW"
    (Theme from Dark-Wing Duck)

  6. #6
    Join Date
    Jan 2005
    Posts
    52
    My little Nema23 steppers running from 14 volts on resistor limited full-step drivers will max out at 9IPM but will loose steps towards the ends of the rails ... so I run at 4-6IPM to keep it happy. It's SLOW, but way faster than hand tools!

    CP

  7. #7
    Join Date
    Jun 2005
    Posts
    476
    It's interesting that more people are either in the 10-50and 100-300 IPM brackets than in the 50-100 bracket. Not following the usual bell-shaped curve.

    I wonder, is this because people are polarizing towards two seperate goals -- either to build affordable CNC or to see how fast/powerful they can build?

    Or is it perhaps some other cause -- for instance, the people who built 10-50IPM CNCs are mainly cutting fine detail, wax, and the people who built 100-300 IPM machines are mainly building CNC routers?

  8. #8
    Join Date
    Mar 2003
    Posts
    35538
    I think the 10-50 is due to the affordable CNC factor.
    Gerry

    UCCNC 2017 Screenset
    http://www.thecncwoodworker.com/2017.html

    Mach3 2010 Screenset
    http://www.thecncwoodworker.com/2010.html

    JointCAM - CNC Dovetails & Box Joints
    http://www.g-forcecnc.com/jointcam.html

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

  9. #9
    Join Date
    Oct 2003
    Posts
    593
    I have a belt driven X axis that can cut at 800IPM but it's pretty useless at that speed because my Y axis max cutting speed is 90IPM. Unless I cut a bunch of horizontal grooves I never see anywhere near 800. I leave it set ~120IPM.

    Regards Terry.....

  10. #10
    Join Date
    Oct 2003
    Posts
    927
    This dual Y axis machine I have does 340ipm at night, but 320 during the day due to line voltage increase at night. the x does 400ipm, and the Z 240.
    But this is cut back...as above, with a Makita router spindle, real usage is about 280 to 320 ipm for simple broad cuts...much slower for intricacy.

  11. #11
    Join Date
    Oct 2005
    Posts
    1237
    Still building, but will be happy with 10ipm. Another poll on the same theme could be asked, "How accurate is your machine?" IMO 100+ipm don't mean didly if it is constantly .015 out of tolerence. I'm shooting for no more than+-.002. I think tight machines may be harder to build than fast machines. With little experience building (so far) I'm probably wrong and will find speed is an outgrowth of accuracy and vice versa. Don't seem likely though. Loose and slick with powerful motors can probably blaze with speed as the cut wanders all over the place.

  12. #12
    Join Date
    Jan 2004
    Posts
    24
    My little router (20 X 48) can rapid @ 200 IPM and I cut balsa @ 60 IPM. Cut 1/8 plywood @ 20 IPM. Router bits are the limit on feeds. I use .050 carbide bits for cutting model airplane parts. They will break on the plywoos at speeds over 30 IPM and cutting balsa at speeds over 60 it fuzzes up and needs the fuzz sanded off.

  13. #13
    Join Date
    Mar 2004
    Posts
    500
    I wanna see pictures and specs on those 600ipm and above machines.

  14. #14
    Join Date
    May 2005
    Posts
    6

    Speed

    The fastest movement we get is just over 40ips

  15. #15
    Join Date
    Aug 2004
    Posts
    3215
    I cut at 80ipm now jog 120ipm to be safe.

    http://www.cnczone.com/forums/showthread.php?t=15139

    Joe

  16. #16
    Join Date
    Mar 2004
    Posts
    500
    On which machine Joe? What size motors and what type driver and lead screw.
    Sanghera.

  17. #17
    Join Date
    Aug 2004
    Posts
    3215
    Quote Originally Posted by Sanghera
    On which machine Joe? What size motors and what type driver and lead screw.
    Sanghera.
    my new one model 2006, HobbyCNC Board, 200oz motors, 1/2-10 leadscrews.

  18. #18
    Join Date
    Dec 2003
    Posts
    33
    My machine cut at 80 ipm and jog at 130 ipm.

    I can cut at 110 ipm also, but spindle power is not enough. If I increase the feed, the chip thickness will be greater. It means more cutting energy. Spindle can not overcome this cutting energy. I use a 2HP router as spindle. I plan to use a bigger spindle.

  19. #19
    Join Date
    Jan 2006
    Posts
    387
    Will using a larger spindle motoer ( heavier) mean slower speeds or some inaccuracy ?

  20. #20
    Join Date
    Dec 2003
    Posts
    33
    Mt steppers torque can carry this weight.
    My problem is, spindle torque is became inadequate while feed is above 80 ipm. I want fine cut even in high feeds

Page 1 of 5 123

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