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Multi-surfacing HELP please


alloutmx
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Ive spent all morning trying to figure this out for myself. Hoping someone can advise me on how Im suppose to cut these surfaces.

 

Planning to mill complete in two ops, on the 3axis mill, the side with the holes up first

 

Im having trouble with the surfaces in the middle blending to the side tabs right now.

 

Thank you in advance. Any imput will be GREATLY appreciated

6.MCX-7

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Personally I have never had any luck getting mastercam to recognize vertical surfaces at the same time as other surfaces... im not saying its impossible.. but I haven't had any luck with it.

 

I would suggest you go with what you have done already, then create a curve on the upper edge of the radius where it contacts the flat of the tab..

 

You should be able to do it using create curve one edge..

 

Then view it from the side and offset the curve up/out the radius of your ball e/m your cutting with.

 

Now path those curves as a 3d contour tell it to leave minus your tool radius on floors so that mastercam paths it at ball c/l and you can control the overall width using cutter comp.

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That's what I usually do yes -

 

it's hitting the top of the tab because I lazily selected the whole part - you could just select the faces you want instead,

 

you can't figure out what we used as containment because we didn't :) hybrid will just automatically use the outside of the part as containment. you can always add one on if you want it.

 

Hybrid doesn't work in every case and isn't always the most efficient but it tends to work great for mixes of flat/sharp. Sometimes you get the tool travelling down and up though (as evidence in the rads of that part) so it depends on the materials/tooling you're using.

 

For organic-type shapes it's great, and it's my new favorite path.

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That's what I usually do yes -

 

it's hitting the top of the tab because I lazily selected the whole part - you could just select the faces you want instead,

 

you can't figure out what we used as containment because we didn't :) hybrid will just automatically use the outside of the part as containment. you can always add one on if you want it.

 

Hybrid doesn't work in every case and isn't always the most efficient but it tends to work great for mixes of flat/sharp. Sometimes you get the tool travelling down and up though (as evidence in the rads of that part) so it depends on the materials/tooling you're using.

 

For organic-type shapes it's great, and it's my new favorite path.

 

what do you consider Organic ?

 

I tried selecting only the faces i want and i even tried to check the to[> surefaces and it didnt work out for me. sorry...my letter that looks like a backwards 9 and rhymes with T doesnt work...

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organic as having few flat surfaces, no real definable pockets etc.

 

hrm looks like you're right - I would just change the z-height to start a bit from the top. toolpath is completing the surface there even if we deselect it so it want's to machine over it. you'll either get retracts over it, or it'll want to machine it so best just to adjust the z-height

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