trouble with internal groove

[lruhland]

Guru's


I am having trouble with internal grooving or contouring. i am trying to use a t-slot cutter or sketched cutter in trajectory. My problem is the cutter needs to step down but it wont read the top surface. the cutter is either cutting below the surface or it is to high and not staying between the two surfaces. is there a parameter i am missing? I can use the step depth but it has to be the width of my cutter and i cant have that.


If there is anybody that can help me it will be appreciated.


Thanks


LRuhland

 

[peterbrown77]

Use the NUM_OF_CUTS parameter, set it to the whole value plus 1 of the groove width / cutter width.


Set the STEP_DEPTH equal to the groove width minus the result of the cutter width times the num_of_cuts minus 1.


Sounds strange, but it will make more sense when you see it in action.

 

[lruhland]

Peter,


"Use the NUM_OF_CUTS parameter, set it to the whole value plus 1 of the groove width / cutter width"


I'm Not sure what you mean by "whole value".


The width of the grooveis .900 and the cutter is .320 wide.


Thanks,


LRuhland

 

[peterbrown77]

.900/.320=2.81 cutter widths. You will need at least 3 cuts, or 2 + 1.


For step depth, i should have said divide.


Set the STEP_DEPTH equal to the groove width minus the result of the cutter width divided by the num_of_cuts minus 1.


.900 - .320 = .580. .580/2=.290


Num of cuts is 3, step depth is .290.


Regards

 

[lruhland]

Peter


I did what you said and started my start height plus cutter width and it worked, you the man.





thanks

 

[peterbrown77]

You might even make it 4 cuts to get a little more overlap.


Good luck.