How fast are you feeding your Renishaw part probe?

Thomas Paine · Aug 11, 2016

just got a new Renishaw Go-Probe.
Default feedrate is 1500mm/min (59"/min).

Manual says:
The fast feedrate of the cycles can be adjusted by this variable to suit the machine characteristics and should be optimised. Duh.

Renishaw says:
you can only go as fast as your machine can stop.

What is the procedure, just creep up until you crash the probe?
Just wondering what everyone else is doing as far as feedrates. Thx.

Atomkinder · Aug 11, 2016

Do you mean the P9810 safe move feedrate? If I'm heading towards a surface I use 100 IPM, and away from a surface 200 IPM.

Thomas Paine · Aug 11, 2016

yeah, on mine it's O9724:

(EDIT*VARIABLE*#111+9*TO*CHANGE*FAST*FEED)
#[#111+9]=1500.

I haven't found the variable for measurement feedrate yet, but it's something like 37IPM right now.

Atomkinder · Aug 11, 2016

What's your mill? I have never delved into the measurement feedrate but the second touch speed is quite slow. We have probing on a Haas VF-6SS and although I have been told by our support guy that both Haas and Renishaw say it can be run in safe moves at 250 IPM, I just don't trust the machine to stop that quick without breaking the stylus. Maybe a VF-2 could.

Edit: I see you're talking about the WIPS macros, not the Inspection Plus routines. I haven't changed any of those and I don't use them for part inspection or subsequent offsets, I just write them in myself for program add-ins. The 9024 routines are set up in ways I don't like.

CarbideBob · Aug 11, 2016

Go ahead, try 1200 ipm.

Learn a few things. One has to push the edge way up there to find the oh-poops.
Catalog data is nice, somebody out there competing on price may be pushing it much farther.
Bob

Matt@RFR · Aug 11, 2016

I've done a fair bit of testing here and am not going to give up my actual numbers (they really only apply to my machine in my circumstances anyway), but I will say that you can get away with a LOT higher feedrate when probing for centers (center of bore, center of block, etc.) than you can when probing for a single surface in any direction.

tteitgen · Aug 11, 2016

In your program O9724 there is a line that says: - #119=200(FAST*FEED*INCH) - this your feed rate. This is what it uses for measurement and rapid feed rate. If G20 is active, for standard.
Or it will read "#119=5000(FAST*FEED*MM)" if G21 is active for metric measurements.
Then probe programs likes 9722 take this federate and turn it around to read this "G31Z#26F[#119*.6]" which is a probing move in "Z". I adjust this number until I can get the probe to repeat a measurement consistently.

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How fast are you feeding your Renishaw part probe?

Thomas Paine

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Atomkinder

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Thomas Paine

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Atomkinder

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CarbideBob

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Matt@RFR

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tteitgen

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