Hi EMC users,
I have EMC running on an old pc, latency number about 25000. I got an
occasional real time error with latency number set at 22000.
I drew a part in CamBam, generated some g-code and cut a part. The part
looked right but the caliper says every dimension cut a little small. A
circl
2011/9/29 Martin Patton :
>
> The part looked right but the caliper says every dimension cut a little small.
What is the range of deviances? What I mean, how consistent is the
deviance in dimensions? Is it very close in all directions, is the
error along one of the joints or is it completely rando
There is some good info in the EMC manual on testing for lost steps.
Have you checked for backlash?
John
On 9/29/2011 12:10 AM, Martin Patton wrote:
> Hi EMC users,
> I have EMC running on an old pc, latency number about 25000. I got an
> occasional real time error with latency number set at 2
Martin;
For what it's worth - I'm playing with a new machine of mine (Sieg "KX1" with
Gecko G540) and am looking at the backlash in the x-y table.
To do this, I put a dial indicator on an axis;
move +1mm, +1mm, +1mm, all show accurate moves;
move +1mm +1mm -1mm shows the backlash.
What if you
One recommendation is to put a Vee cutter in your spindle and run a program
where the Vee bit just touches the material in a uniform grid pattern. Take
your "part" and measure all the positions from the 0,0. You may have your
machine set up in such a manner that it is not just perfect. When I di
emc-users@lists.sourceforge.net
> Subject: [Emc-users] calibrating stepper motor cnc
>
> Hi EMC users,
> I have EMC running on an old pc, latency number about 25000. I got an
> occasional real time error with latency number set at 22000.
> I drew a part in CamBam, generated some g-cod
Martin Patton wrote:
> Hi EMC users,
> I have EMC running on an old pc, latency number about 25000. I got an
> occasional real time error with latency number set at 22000.
> I drew a part in CamBam, generated some g-code and cut a part. The part
> looked right but the caliper says every dimensi
On 29 September 2011 06:10, Martin Patton wrote:
> A circle pocket drawn 1.50 diameter cut about 1.42 in diameter,
1.5 / 1.42 = 1.0563
2mm / 12tpi = 1.0583
Just a thought, do you have metric leadscrews calibrated in TPI?
--
atp
"Torque wrenches are for the obedience of fools and the guidance
>?A circle pocket drawn 1.50 diameter cut about 1.42 in diameter,
>
> 1.5 / 1.42 = 1.0563
> 2mm / 12tpi = 1.0583
>
> Just a thought, do you have metric leadscrews calibrated in TPI?
>
> --
> atp
> "Torque wrenches are for the obedience of fools and the guidance of wise
> men"
>
>
> Nope. They are
