mr2 hsm %stepover (possible bug)

[beej]

under hsm core roughing, the default for stepover percentage is 45% if I change it to 70% it uses 70% of the old tool not the one I've just selected.

 

ie, when I select the path it opened up using a 1/2 ball nose. I selected an 1 1/4 bullnose and I changed the stepover percent to 70% and it changed the numbers to .15 and .35. should have been .5 and .875

 

has anyone else noticed this?

[Dave Pomper from CNC Software Inc.]

No one else noticed this. It will be fixed.

[Steve Zirtzman]

Nice catch beej!

[Glenn Bouman]

I have found that HSM fills in the stepover or stepdown value to a percentage of the tool(either 10% or 45% depending on toolpath type). If you change this value and happen to re-select the tool the value will revert to that percentage of tool. Or if you switch between raster and scallop you will loose the stepover value that you entered. I would prefer that Mastercam just keep the values that I entered and don't mess with them.

[beej]

thanks guys. good to know that once in a while it's not me.

[HevyMetl]

If you finish the operation, generate the operations, reopen, then it will allow you to use the selected endmill. You then have to regenerate the toolpath. I know it is a pain, but it is the only way I have figured out to get it to work properly. The easy way is to manually figure your desired step over and enter the the percentage until you get those values.

[beej]

quote:

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The easy way is to manually figure your desired step over and enter the the percentage until you get those values.

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that's what I've been doing. had to dust off the adding machine

[HevyMetl]

Yeah since I am from Kentucky I had to do the TOOLMAN 184 method and pulled my shoes off to get to 24%. (for TOOLMAN 184 that means you got 6 fingers and toes on each appendage ((hand and feet))