New Kelling CNC router...

[CyborgCNC]

Hi All,

I just finished my new CNC build, using ALL keling components...the thing rocks!

Here is a video of it, "air cutting" a Les-Paul top....very happy with the build
overall...

"http://www.youtube.com/watch?v=85tWFt2V3WI"]YouTube- CNC aircut LP

Using KL-9082's on all axes, running them with a 60V power supply to the motors...very happy with the performance of the drivers, and these things are build like a tank...really liking the integrated heat sinks on the drivers...
Motors are wired in parallel, 500Oz/in on x/y and 380Oz/In on the Z....

All ball screws and linear rails....

What do you think?

[ger21]

Do you get any flex in the gantry sides, say, if you push on them? They look a little weak. Other than that, looks great. Is 400ipm the max speed?

[the4thseal]

whats up with the leds. how are they wired up into this. nice job.

[rowbare]

Very nice build! What are your travels?

[CyborgCNC]

Thank all....

No flex that I can detect.....but I will put a dial caliper on it to see..I am sure there is some...but for cutting wood, I do not think it will be an issue...we shall see....

travels are 42 x32 x6.5 for the x-y-z respectively.

I can probably go faster than 400 IPM, but I found out that my computer which I am using, is not good at pulsing higher....that is plenty fast for me at this point....will probably consider an external pulsing engine at some time.....

Not sure what you mean by the leads being wired? you mean to the keling driver or to the motors?

[the4thseal]

i was talking about LEDS lights , they behave like resistors (kind of) so i was wondering ow you tied them into the wiring of your controller?

[multiplex]

Nice job!

What are you running for screw pitch? Also are you reducing the stepper drive at all? Your pulleys almost look 1:1

last question - what micro step setting are you using

thanks!

[CyborgCNC]

-The Breakout board I am using, had an option for an LED board...I would not say that LED's act like resistors..be-careful of that....

Look here:

http://www.candcnc.com/

And browse for their LED break-out board..works quite well!!

-The screw pitch is .2....and no, I am not reducing the stepper drive...curious to see why that might be a good thing/bad thing to do? I guess I can get faster speeds, with the same pulse rate if I was reducing it....is that why you asked? Now you have picked my curiosity :-)

I do not recall at the moment what micro-stepping I have on the drivers (I believe I have them at 128), but will need to confirm with my jumper settings, as it has been about 4 months since I build the controller.

I checked the travel with a digital caliper on all axes, and it is spot on....

[the4thseal]

-The Breakout board I am using, had an option for an LED board...I would not say that LED's act like resistors..be-careful of that....

i know, i just meant that they do not work for free and would screw things up if just stuck where ever......

[jalessi]

CyborgCNC,

Adjusting your micro stepping to 10 would still produce .0001 resolution with your .2 tpi screws.

That would reduce your steps per from 128000 to 10000.

Your computer would not have to work very hard, and would have pulses to spare.

Jeff...

[CyborgCNC]

THAT makes perfect sense!!! Thank you for that!

I will try that...and see how high I can push this thing....

[Larken]

Nice Job !
400 in/min with a 5 turn/inch screw is about 2000 rpm on the screw. For a stepper ,thats wailing Man !

Are you worried about wood dust getting in the ball screws ?