Loft Toolpath Problem

[Darren Long SPE]

Can anyone help me here?

Im trying to create a Loft toolpath from the Rectangular Shape to the circle at the bottom.

It just does not want to go down all the way to the circle.

The file is here

ftp://[email protected]/Masterca...MCX2_Files/LOFT PROBLEM 1.MCX

 

I would appreciate any thoughts on this!

[Teh Bear without Brains kinda idiot]

yOU NEED TO SYNCHRONIZE IT

sORRY i AM BUSY AND HAVE NO TIME TO DEAL WITH YOUR FILE BUT ...

sEE IN mc HELP Synchronizing chains TOPIC

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Many Mastercam functions, such as surface creation and ruled toolpaths, use chain synchronization. You may need to choose a synchronization mode (sync mode) if you have attempted to create a toolpath and found that it twists as shown below. The twisting could affect the surface of the part and make it unmachinable or not looking the way you intended.

 

 

When synchronizing chains, Mastercam breaks a chain into a number of separate chains for the purpose of creating the toolpath or surface. The Sync mode setting, in the Chaining Options dialog box, determines how Mastercam divides up the chains. You can set a default startup Sync mode on the Chaining property page in the System Configuration dialog box.

 

Available Synch mode options are (click to view definition):

~~~~~~~~~~~~~~~~~

[Darren Long SPE]

Tried a few options....still didnt get it?

What am i missing???

Even Creating it as 1 Surface ( Only have LEvel 2...) ....it still will not do it?

Anyone?

[Dan@home]

Corrupt file would not open.. Can you send it to me?

[Hardmill]

Darren delete some of the stuff thats not needed in

there and email it to me. 28 mb is pretty big to

download from the FTP.

 

 

PEACE

[Dan@home]

Looked good to me..

[Darren Long SPE]

Ok... Imagine a Radiused Rectangle as follows

101.6mm x 35.6 fillets are 9.9mm anchored to 0,0,0

 

Then a Diameter 34mm Circle at position 0,0,-36.1

It seems when I try and use Wireframe Loft that it does not cut the 34mm circle correctly.

If I use Surface Finish Contour, it looks slightly better....

But is it right?

[shazam/TPP]

try using surface finish flowline seemed to work fine

[Teh Bear without Brains kinda idiot]

When you do your chains go into options and select appropriate synchronization method.

You can not do it without synchronisation .

Same for surface creation .

How you can not get it that you can not do correct loft of circle to rectangle without synchronization ?

[Darren Long SPE]

"How you can not get it that you can not do correct loft of circle to rectangle without synchronization ?"

 

I do get it ..... but for me this shape is not working out correctly.........

[shazam/TPP]

try using the wireframe and create a swept surface, option 4 (using two along curves to control an across curve) and then the surface finish flowline toolpath.

[shazam/TPP]

hey Darren, i uploaded what i did to ftp in the same directory under LOFT PROBLEM SOLVED.MCX

hth

[Darren Long SPE]

Shazam

Email sent. Thanks!!

[shazam/TPP]

your welcome, i'm just happy i got one in before the JP and APt Guy