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Messages - yeager

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1
General Mach Discussion / Re: calibration problems need help please!
« on: March 25, 2006, 09:29:57 AM »
thanks graham
i will try that this weekend and get back to you with the results

2
General Mach Discussion / Re: calibration problems need help please!
« on: March 24, 2006, 08:39:02 AM »
i'm measureing to 1/64
not sure of pitch because the machine uses serveral pulleys then a row of teath down the side and a gear on the pulley
this is why i'm trying to use settings->calibrate
200 steps per rev (gecko drive) 1.8 motors

I can get the machine to run 120" perfectly every time but is inaccurate at 2"!

this problem is happening on x and y axis

3
General Mach Discussion / Re: big router vacuum tables ?!?
« on: March 23, 2006, 10:18:33 PM »
you cover the entire table with a piece of mdf board
the vacuum sucks though the fibers of the board distributing the vacuum equally among the holes
no need for plugs or scraps
however some folks will install sectional shut off valves to increase suction in specific areas
i have a 5' X 10' table and use a 10 hp Fuji blower/vacuum from grainer with great success 

on a side note use the router to "plane" the top of the board to insure an equally distance to the tool

4
General Mach Discussion / Re: Recommended PC Configuration
« on: March 23, 2006, 09:46:16 PM »
I'm running a $450 compaq (celeron 2.8 512 mem) from fry's with no problems
i took it out of the box and hooked it up
the mach III software reports 65000
Your new computer might have hyper threading which could be a problem

5
General Mach Discussion / calibration problems need help please!
« on: March 23, 2006, 09:20:43 PM »
hi everyone
i'm having very good luck using mach 3 however i'm have a major issue with calibration
I am using a 5' X 12' router table.  It is 3 axis and uses 3 geoko drives with 1.8 stepper motors

My problem is... when i use settings -> calibrate, I enter 2 units (2"), take the measurement and enter that.

Then the machine is perfectly accurate at 2" however is more than 1/2" off at 120"

So, then i enter calibrate 120" take the measurement and enter that.

Now the machine is perfectly accurate at 120" however is more than 1/4" off at 2"

Therefore,... I cannot use this program  (I think i might not have all settings properly adusted)

I need the machine to be accurate to 1/64... is this possible?

Thanks in advance
So you See, I just can't win!

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