Hi
I am still thinking, if doing 3 D work , how fast is it possible ?
less than 10 IPM (4.2mm/s)
10-50 IPM (4.2 - 21 mm/s)
50-100 IPM (21-42 mm/s)
100 - 300 IPM (42 - 127 mm/s)
300 - 600 IPM (127 - 254 mm/s
faster than 600 IPM (254 mm/s)
Not fast enough! 80ipm reliable rapid moves which was a little disappointing. Got some resonance which isn't helping things.
Only have 3000rpm max spindle so limited to around 20-24ipm cutting with a 8mm 3 flute anyway (esp slotting).
If it makes any money it'll be spindle and servo upgrades first.
Hi
I am still thinking, if doing 3 D work , how fast is it possible ?
Live long and prosper.
SoWell the more is better but for such 3d workwhat should be the target acceleration range.....say 300mm2/min or 600mm2/min...
Any guidelines keeping in view practicality. Although i would love accelerations of a F1 race car.
Live long and prosper.
This is where I'm glad I went overboard for Nema34's on my PM25 clone.
At 400rpm (2000mm/min) the torque figure is almost identical to the Nema23 motor from a similar model line.
When it comes to acceleration though it's a fairly big difference so far.
Haven't got round to do that much testing yet with tuning to find it's stall point.
My home shop CNC can cut composites pretty damn fast, its almost scary. I could have a nap between each passes when it cuts ferrous-anything though...
All depends!
Should have asked what sort of 'rapids' (aka non-cutting moves) are you getting from your homemade cnc instead
X 37.5 m/min 0-max in 200mS
Y 30 m/min 0-max in 200ms
Z 30 m/min 0-max in 200ms
X 1.5kw brushless
Y 0.9kw brushless
Z 0.9kw brushless
X1660mm length
Y820mm lenght
Z220m lenght
CNC control RosettaCNC-B 6 axis
All CNC parts made with mazak center
Enough fast
New build for plasma cut:
X/Y at 88 m/min (brushless)
Z at 25 m/min (brushless)
X 12500mm
Y 2800mm
Z 270mm
Telegram: @Shineworld
mine can cut at 55 IPM
I converted a colchester clausing mastiff, I had to slow it down, 600 ipm rapids on the x axis is too fast. I limit it to 100 ipm usually to give me half a chance to hit the estop. most of the time that's still too fast for me. I make large parts (3" to 10") and rapids don't save much cycle time.
Ray,
Life is a choice, death is choice poorly made.
A little update.
Dumped the X,Y nema34 1080oz motors.
Swapped for nema23 566oz. Kept it as a 60Vdc system.
Rapids up to 2500mm/min (98ipm), very smooth and it could easily do more.
Acceleration went up to a setting of 3000 without issue. Seems limitless atm.
Still not the fastest cutter with it's 3000rpm spindle limit. Should be much better when the servo goes on.
Faster than 600 IPM (254 mm/s)
http://cncmakers.com/cnc/controllers/CNC_Controller_System/CNC_Retrofit_Package.html
Just measured mine, hitting 6000mm/min X & Y 3000mm/min Z
Not crazy fast, but only has a 200x200 work area.
Oh, and cuts steel like butter.