Simple G-Code Question

[ChrisWalker]

Hi Guys,

Can anyone please take the tim eto provide me with a G-Gode snippet that will allow mt to rotate my 4th axis 90 degrees?

My plan is to take the txt file and insert this code a tthe end then copy and paste it 4 times so that the txt file will perfrom the act of cuting the pocket rotate and repeat 4 times.

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[Jim Dawson]

G01 A90.0
G01 A180.0
G01 A270.0

[ChrisWalker]

So would i add the a90 then pate the original filethen add a180 then paste the file again and so on?

[Jim Dawson]

That's all there is to it. Be sure to retract the Z before you turn the 4th.

[ChrisWalker]

if my thought is correct it would return to the home position before rotating. THanks

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and shouldnt it be G0 A90 not just a90 right?

[Jim Dawson]

G0 A90.0 would be a rapid move, should work fine.

[RCaffin]

if my thought is correct it would return to the home position before rotating.
Why should it?
When you execute
g01 x1 y1
g01 x-1 y1
you most certainly do NOT expect an RTZ in between them! Same applies to the A, B & C axes.
In other words, the CNC SW will do EXACTLY what your program says.

Granted, if your program is wrong, the machine will still try to execute it! This can be exciting.

Cheers
Roger

[handlewanker]

LOL....."this can be exciting"...... dear Rog.....this has made my day.
Ian.