Messages

1

General Mach Discussion / Re: Sqauring the Axis

« on: August 31, 2015, 06:24:44 PM »

So thankyou to everyone for their input, I actually have a clever friend who has shown me how to write for formula.

This is quite clever and compensates for all Axis in all directions.

Yes the table was built out of sqaure. I used materials i had laying around, i apologise for being poor.

Id just like to put a big thankyou acknowledgement out to my friend. Thanks Tyler!

2

General Mach Discussion / Re: Sqauring the Axis

« on: August 31, 2015, 07:15:06 AM »

Ok, ill do my best to explain.... The CNC machine i have built, "gantry" (y axis) and also the X Axis Rails are slightly sqew.

If i jog either the X axis or the Y Axis independenty in a straight line, the line is not true... Meaning that if you use the edge of the table as a guide reference for either X or Y axis to travel along,
the travel of either Axis does not run true to the edge of the table.. 
For example.. If i place my cutter on the home position in the bottom left of the corner of the table (0,0,0) and then use the edge of the table as a reference along the X axis, i would like the cutter to run parallel with the edge of the table.. without deviating in the Y direction.
At the moment i put the cutter in the homing position (bottom left corner, 0,0,0) and then jog the cutter along the X Axis for 300mm and it ends up slightly bias to the right about 3mm i have the same problem with the Y axis also, only the bias numeral is different.
I am not taking apart the machine to fix the issue. Thats crazy.

The most enlightening piece of information i have so far is here..

http://www.cnczone.com/forums/mach-software-artsoft-software-/82179-squaring-x-y-axis-mach-3-a.html

But i am unsure how to write the formula.

Anyone any ideas?

Cheers

3

General Mach Discussion / Re: Sqauring the Axis

« on: August 31, 2015, 12:27:52 AM »

Does anyone know how to use the Formula Axis Correction function? i have managed to work that much out.

Its crazy thats theres no live support.. its a matter of sitting here twiddling ones thumbs, waiting for someone to help..

There seems to be bugger all information about the Formula Axis Correction function..

Guess ill take the rest of the day off and maybe even the week depending on if i can get help from this forum.

4

General Mach Discussion / Sqauring the Axis

« on: August 30, 2015, 11:22:28 PM »

Would anyone be able to help me with a small problem i have..

The problem is that both the x and y axis need to be compensated for to make them true and sqaure against a straight edge..

Meaning that when the X Axis travel from the home position for example.. without touching any other axis the X Axis with shift
slightly sideways over a given distance. This is rather undesirable.

Could a knowledgable person tell me how to adjust the software so that it can compensate for this?

Hope i have made myself clear.. i couldnt find anything about this problem through searching through the forum

Cheers