Messages

51

Building or Buying a Wood routing table.. Beginnners guide.. / Re: Size of a table..

« on: October 28, 2006, 12:33:50 PM »

Hi Art,
I am going to join you on your journey, I am going to build my own I but I think I am going to need your help, so your going to hear alot from me. You have been talking alot about gears and pulleys what about direct drive from the steppers/servos?
Greg

52

General Mach Discussion / Re: What is a good feed rate?

« on: October 28, 2006, 12:30:12 PM »

I think its the machine side because if I run the machine at slow feeds in doesn't screwup but if I turn my feeds up it at random will screw up. I can run one program at high feeds and no mistakes then the next program will screw up at some time, sometimes it will not happen at all that day but on the next day it happens all day, it seems totally random.

I have everything running to one power bar, then into the wall, I have my computer, monitor,speakers, stepper box, router, light and fans running off the one power bar.  Do you think thats the problem? The only time I had a problem is when it lost it's location and then it slammed into the top of my aluminum work piece and it blew the breaker.

Step pulse is set to 6 and the Dir pulse is set to 0.

The Driver test this is what the screen said,
Pulse per Sec. in 25Khz Mode=23853
CPU Speed=1999
Apic timing constant=4192
and the line had some fuzz in it and it would go flat then come back and so on....the fuzz never went more than the line above or below.

Did your K2 Stepper box get very hot?

Thanks for the input!

Greg

53

General Mach Discussion / Re: A axis and Mach3R2.0.005

« on: October 28, 2006, 02:31:24 AM »

Hi,
Try G20 to get back to inches
G20=Inches
G21=mm
Im not too sure about the rest.
Greg

54

General Mach Discussion / Re: What is a good feed rate?

« on: October 27, 2006, 11:26:17 PM »

Hi,
I have a K2 cnc router too, it's a K2-2514 and I have been having problems with the stepper motors loosing there place, it seems like the get stuck and then get freed and start cutting again but out of place. I played with the acceleration and velocity and almost had them down to nothing.  With a tip from K2 I started using WD-40 on the leadscrews and it helped a lot but I was still limited, it still screwed up once and a while. I changed from Mach2 to Mach3 and that made a big difference as well, but I'm still not too sure about finding the sweet spot. What I've been told is to crank it up till it screws up then back it off until it stops screwing up, but I can't afford to do that it always does it at times when I don't want it to. Does anyone have any better way to find the limit for the machine?
I was thinking about building a router like the K2 models, 4x8 with 6in Z travel any tips?

Thanks,
Greg
P.S. try www.harveytool.com for small endmills for example .001 dia x .003 long or TiAIN coated 4 flute 1/32 ball for$22.20.

55

General Mach Discussion / Re: Settings or machine problem

« on: September 24, 2006, 01:59:45 AM »

Hi,
The one thing Mach could have done to make things is to make the setting page the same so it would be easier to convert over, they took three pages of input data and put it into one page and same with the output. I know it has more features so I am looking forward to switching over.  Thanks for your help.
Greg

56

General Mach Discussion / Re: Settings or machine problem

« on: September 24, 2006, 01:19:11 AM »

Hi,
I put in all the settings into Mach3 and it moves on the scree but not on the machine, any tips? Is there any comon things that people miss that usually cause Mach3 not to work. I plan on watching the video again, the first time thru over I missed a few things but now that I actually touched the Mach3 interface I think I can just play with it and figure it out. The other thing is that the my machine make doesn't suggest Mach3 because they say it's not stable enough and it has some bugs.
Thanks for the help and I will be back on tomorrow to let you know how it's going.
Thanks,
Greg

57

General Mach Discussion / Re: Settings or machine problem

« on: September 23, 2006, 07:38:33 PM »

Hi,
When somthing is grayed out and there is a check underneath it does that should I check that in Mach3? It is for active low.
Thanks,
Greg

58

General Mach Discussion / Re: Settings or machine problem

« on: September 23, 2006, 06:32:35 PM »

The image is a little fuzzy but you can see the colours, is that what you were hoping to see?
I am going switch over to Mach3 because again the z lost it position. You would think that changing the settings to move slower that it wouldn't happen anymore so that's why I think it's more thant the acceleration and velocity settings.
Thanks,
Greg

59

General Mach Discussion / Re: Settings or machine problem

« on: September 23, 2006, 04:39:48 PM »

Hi,
I have downloaded mach3 but haven't yet tried to convert the settings,so all I have to do is take the Mach2 ports and pins settings and plug them in to mach3 ports and pins settings?

Do steppers have a max amount of pulses that it can recieve? Could it be a setting that might be too high for the steppers that I am using? So if the feed is to high it tries to read more g-code and then starts to miss steps?

Thanks,
Greg

60

General Mach Discussion / Re: Settings or machine problem

« on: September 23, 2006, 04:14:43 PM »

Hi,
Here are a few pics for you so you can see a bit clearly, even though I changed my acceleration and velocity down to 1.0 the z axis still screwed up when cutting the job I am working on right now. I dropped the acceleration to .75 to see if this wont happen anymore. The biggest problem is that the company I bought the machine from says it can run way faster than that. I don't see what the problem is?
Thanks,
Greg