hst holder collision checking

[darren]

Hi everyone,

Has anyone noticed when collision checking with the holder in hst toolpaths that when you add extra clearance for holder it only expands in dia eg x/y. Not in the Z!!!!!!!!! When verifing with tool and holder you can see holder gouging if you have left say 2mm stock and put say 5mm extra clear in holder page.

Please let me know how this function works with confindence

thanks

[beej]

wow if it doesn't work then I've been getting lucky. I better check that out.

[Mark Baker CNC Software]

The HST Holder check does work in the Z axis.I'm guessing that Darrn's problem lies with the "Stock to leave" setting. Since we're not pointing to an Stl file, the toolpath doesn't know where the extra stock is. So in this case the 2mm of extra stock should be added in with the "Toolholder clearance" setting. Without seeing the file I can't be sure that this is excactly what's happening.

[beej]

Mark, I just tried it and he's right! I tested a cutter 5mm long and used 3mm holder clearance. I picked every surface on the part and the holder went right to the top of the part.

[darren]

Thanks beej

I have not actually used x on any job, Im just evaluating and noticed this is a major fault, Only way to get around it is to actually extend cutter longer then what you put in Mastercam.Check out verify with tool on

[Mark Baker CNC Software]

I hate to say that "it is working" when I have people say that it isn't but unless someone can send me a file showing us a problem it probably won't get looked at. I've done 3 test examples with the tool clearance and it's looking at the "Z" height on the two pcs I'm working with. I've tried X2,MR2,English and metric, with all looking at the tool clearance with the Z axis. If there is a problem, we'd like to know about it but at this point I'm going to need an example.

[beej]

Mark,

you have mail.

[beej]

Darren,

I just noticed that if my holders have a 45deg chamfer on the bottom of them the holder clearance works. If they have a sharp corner the holder clearance (for whatever reason) doesn't work in Z.

[darren]

Thanks for your help ive not been modeling my holders with any chamfers on them, Ill test it out , thanks again