How fast is your homemade CNC?

[solgood]

Not a home made Machine but scary fast

1800 ipm feed XYZ and 3200 ipm rapid travers XYZ.

[motomitch1]

[bunalmis]

I dont know are there the cipm definition? Else I make up.

cipm = circular inch per minute

Forexample

Radius 10 inch. Full arc length is 2* 3.14 *10 = 62.8inh

If your machine draw this circle in the 2 minute cipm value is 62.8/2 = 31.4

Really I want to know how fast is your machine? Can you say cipm value of your machine?

[ahmed]

Hi , Here is some pictures of my machine
http://www.cncstory.com/
my router speed is jog 450 ipm

[pipertom]

On my CNC router I can run X at 50, I can only get Y to 40 & Z to 35. But I keep them all at 35 for more reliability.

[patrick71100]

People Need To Remember Rapid Speed And Speed You Are Actually Cutting ,is 2 Diffrent Things ,pc Retrofits With External Dsp Or Pulse Generators,geckodrive G100 (what I Use)galil,delta Tau Etc,
You Will Genrally Max Out You Motor Speed Before Pulse Train,servodrives Etc,most Retrofits Dont Have Enough Spindle Rpm On Old Machines To Cut Real Fast,mine Will Do 300ipm Scary Fast On Kneemill With 24 In X 14 In Y.i Usually Leave At 150

[spoiledbrat]

My x axis is my limiting factor @ 150 IPM. This is due to the weight of my gantry, and the 6 foot long, 5/8th's inch ballscrew wanting to whip. The y carriage is much lighter, and can handle 220 IPM or so, but I am limited by step pulse with Mach 3.

With Rhino/Rhinocam, I set my Parallel Finishing routine to 90 degrees, and then set the Y speed to 120 IPM. I set this speed so that I do not lose any detail as the Z axis struggles to keep up (looks like a sowing machine sometimes!) The slower "X" axis is therefore not a factor as far as how fast I can machine. The other cutting routines are done much slower, just for spindle power/ bit breakage reasons.

[foam27]

Sanhera,

You wanted to see a machine that does 600+IPM....

Mine does 1500+IPM, designed for foam shaping, it employs electronic encoder gearing to overcome parallel port limitations, I'm using Mach 3, pix are on my ebay auction link now.... http://cgi.ebay.com/ws/eBayISAPI.dll...7790&rd=1&rd=1

[sdopp]

Great replies, I'm hoping to finish building my router this summer I would like some of you guys to post videos much appreciated

[dannystooblue]

I have a bench mill that i have converted using gecko 320's and reliance S243's the a axis has a 10mm lead ball screw that i had belted to 3.4:1. the X-axis could easily run to 300 ipm after tuning but was lacking some in the torque area. the z-axis i had at 2:1 with 0.200" lead ball screw, it will move well at about 150ipm but needs more torque as well. all that said i am re-belting everything which will slow it to the 100-150 ipm range.

Danny

[MrWild]

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[elogicca]

Currently I rapid at 1200ipm it could probably go faster, for cutting i can do 600ipm but i usually cut acrylic at 400ipm


On to machine #3