Sign in to follow this  
randommachinist

Fillets on Solid

Recommended Posts

Hey guys, got a question hopefully someone can answer. Anyways, I attached a picture of the project I'm working on. Basically I have some letters that I've cut out and I'm trying to put a radius on the top edge of all the letters and around the outer perimeter. Ive been trying to use constant radius fillet or variable radius fillet and have had little luck. I've gotten an error every time I try to fillet anything. Does anyone have suggestions on how I can get a radius on these letters?

post-60809-0-52976200-1443298141_thumb.jpg

Share this post


Link to post
Share on other sites

Can you upload a file?

Share this post


Link to post
Share on other sites

ya that one is hard to do...first off your inside corner radii must be = or greater than 3/64...

 

second the splines you used have far too many pieces...

 

I could do but it would take some rework...

 

first I would have to make a manual spline out of all those little splines...

 

then fillet the inside to a few thou bigger than 3/64.

 

Then probably convert to surfaces and do the fillet there then turn back into a solid if I wanted a solid...

 

That is using Mastercam...there are other programs that do that automaticly probably NX or Spaceclaim...

  • Like 2

Share this post


Link to post
Share on other sites

That was a tough one.

 

I did practically what Murlin was saying except I let mcam do it for me.  I copied your solid to new level.  Then I did silhouette boundary and used "fit arc" and deleted the solid.

 

Then I created a circle curve for the outside of the ring and extruded a solid.

 

On the "top" I was able to get a 3/64 to propagate.

 

However, on the "bottom" I was only able to get 0.034in to propogate.

 

Took about 8 minutes or so.

 

I'm out of space but if you pm me your email I'll send the mcam file so you can see the solid history.

Share this post


Link to post
Share on other sites

The only way I see you doing this is by using a sweep operation... where the trajectory is the contour and the fillet would be a 2D closed profile with the fillet.

Share this post


Link to post
Share on other sites

That was a tough one.

 

I did practically what Murlin was saying except I let mcam do it for me. I copied your solid to new level. Then I did silhouette boundary and used "fit arc" and deleted the solid.

 

Then I created a circle curve for the outside of the ring and extruded a solid.

 

On the "top" I was able to get a 3/64 to propagate.

 

However, on the "bottom" I was only able to get 0.034in to propogate.

 

Took about 8 minutes or so.

 

I'm out of space but if you pm me your email I'll send the mcam file so you can see the solid history.

Nice....I never thought about silhouette. ...

 

I will remember that one thanks....

 

BTW surfaces work easier.....sometimes I will just thicken cut them off if I can't get the surfaces turned back into a solid...I try solid first....

Share this post


Link to post
Share on other sites

Nice....I never thought about silhouette. ...

 

I will remember that one thanks....

 

BTW surfaces work easier.....sometimes I will just thicken cut them off if I can't get the surfaces turned back into a solid...I try solid first....

Mcam is really spoiling me, I rarely create geo or surfaces any more.

 

I'm not bashful at creating geo or surfaces to get what I want. I pitty da fool who has to go behind me and isn't accustomed to loads of geo/surfaces. Thank God they did viewsheets or I'd wear a mouse out flipping layers on and off.

Share this post


Link to post
Share on other sites

I used to do everything in surfaces because of fillet in problems such as these. Then solidify the surfaces....Proe had parametric surfaces.

You can cheat and get what you want....wish Mastercam had a couple tools Proe does...because not all geometry will work with the fillet command and some blends have to just be cut off....

Share this post


Link to post
Share on other sites

Thanks guys for all the help! Really appreciate the input! I see what everyone is talking about and will have to try your suggestions when i get back to the computer.

Share this post


Link to post
Share on other sites

Got a question for jlw, following your instructions, when creating the silhouette boundary I'm still having issues getting rid of all the line segments in the solid. I'm not sure if this is how you were getting rid of them or not, or is there another way around this?

Share this post


Link to post
Share on other sites

Sorry, got really busy at work this morning. Email coming.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

Join us!

eMastercam - your online source for all things Mastercam.

Together, we are the strongest Mastercam community on the web with over 56,000 members, and our online store offers a wide selection of training materials for all applications and skill levels.

Follow us