LP2DD Probe deflection

[GSGaNAEVE]

I am currently using a Renishaw LP2DD probe with a stylus that is 100mm in length and has a 10mm ruby ball, the shaft is 4mm. My search speed is 10mm/s. I am using an external kinematic system with a part mounted onto the system, the probe is fixed. I cut my part and I am .017" off in my x direction and .015" in my Y direction. I am currently using no probe deflection offset. Is there a way to calculate this with out using CMM software?

 

Thank you for you help

 

-Austen

[GSGaNAEVE]

I have come up with a method to measure the value of my "electronic probe radius" by measuring a block with a known value in one direction (axis X) .

 

Basically if my block is 75 mm and i measure the front and I get a value of 500 and i measure the back and i get a value of 584.98, i can then subtract the 2 numbers and get 84.98 subtract my block from that(75mm) = 9.98 for a diameter.

 

My question is should there be a different value for x and y? or should they be the same?

I also am yet to come up with a solution to find the electronic probe length.

 

 

Thank you,

Austen

[Del.]

I don't know if this will work but back in the day when I used a tracer. > You have to be over 40 to know what that is> I put an indicator on my stylus and measured the deflection when the stylus touched my template. If it was .008 then I doubled that and added it to the diameter of my stylus. If my stylus was .250 because i was using a .250 rad tool then i made one .266.

[GSGaNAEVE]

I don't know if this will work but back in the day when I used a tracer. > You have to be over 40 to know what that is> I put an indicator on my stylus and measured the deflection when the stylus touched my template. If it was .008 then I doubled that and added it to the diameter of my stylus. If my stylus was .250 because i was using a .250 rad tool then i made one .266.

 

no idea what a tracer is... under 30 here.

 

This is a waterjet application with a robot bringing the part to the probe and the jet nozzle. also what do you mean by an indicator?

[Del.]

This kind of indicator which when mounted and set to your Ruby ball will measure the amount of deflection you get. I bet your deflection is around .008. Mount it with a mag base and zero it out and then see how much it moves when the ruby ball hits your part.