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About LinkBacksAll done with the Coolant setup and now have the spindle running. Have to hook it up to the BOB next to get it to run from the software.
All done with the Coolant setup and now have the spindle running. Have to hook it up to the BOB next to get it to run from the software.
You're motors are 1600 oz? Wow. Am I going to regret considering the basic 380oz Nema 23 ones that Ahren offers with his kits?
Your machine really cruises...
Depends on what you want to do with the machine. The NEMA 23 setup from Ahren has is geared 3/1 and he has everything set up to be plug and play.Originally Posted by vrf
Indicated the Z-axis and it came out at only .001 over 5" of travel. Added a Touch screen to the monitor. Added Monitor stand. Having problem with the PWM for speed control. Any thoughts for a good PWM card? Looking at the DigiSpeed DC-02. Anyone used this before?
Are you trying to take PWM from Mach3 and convert to 0-10V? What kind of problem are you having?
Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
I'm using a UIM2901-5A BOB. It has PWM output. It worked before I started the build with Mach3, now I can turn on the spindle and it just sits there at 1.75V (4300rpm) and it won't adjust ether up nor down.
I'm surprised it varied the speed much at all. As you say a device to convert
the PWM signal to an analog 0-10vdc that the inverter can understand is needed.
The Digispeed DC-02 will work or any inexpensive converter. Something like this:
PWM Signal to DC Voltage,Conversion Board for Speed Control of Spindle/Mach/Cnc | eBay
Hopefully the PWM signal is still functional from the UIM2901. If you have a
oscilloscope or access to one the PWM signal can be quickly checked.
Edit: this one has some nice features but about 3x the cost: PMDX.COM - Products for CNC and motion control applications
Last edited by ezcnc; 02-02-2012 at 02:51 PM.
Finished adjusting the Z-Axis and checked my spindle run-out. All looks good.
Hello everyone. Just a short video showing the machine planing some wood.
Congratulations on your first cut.
A rapid build achieved in sub two months!
Thanks again for posting the video very much appreciated.
Cheers
John
Great build, and one I hope to use as advice when I'm building one if I decide to go with this machine kit. I see in your last video that you plan to do some test cutting on that block of wood.
I'd be interested to see measurements that will reflect the amount of tool deflection- IE measure the parts and post those measurements along with the programmed sizes, for both climb and conventional cuts using relatively small bits (.125, .25)
By the look of it, there shouldn't be much- I'd bet you can't move the bit if you push on it with your finger?!
N
Lets put it to you this way. With the machine turned on, if I grab a hold of the spindle and push real hard the only thing that moves is the entire machine.
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