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Lathe issues since update

7 REPLIES 7
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Message 1 of 8
cnc.shop
169 Views, 7 Replies

Lathe issues since update

The turning portion of fusion has always been under developed and seemed like an after thought. Its been steadily getting worse and worse with each update. I don't use any roughing strategies as they're terrible but posting finish lines to paste into canned cycles and part templates was manageable. Since the last update I've had to go back to using hsm for lathe parts at at this point.

Fusion can no longer handle radius to angle to radius. This is the code from a .125 45 degree ID chamfer with R.01 radii on both ends using a R.008 insert:

G1 X4.2885 F0.002
Z0.
X4.2685
G2 X4.2654 Z-0.0002 R0.008
G1 X4.2631 Z-0.0004
G2 X4.2573 Z-0.0016 R0.008
G1 X4.2554 Z-0.0022
G2 X4.2529 Z-0.0032 R0.008

G1 X4.0064 Z-0.1265
G2 X4.0045 Z-0.1277 R0.008
G1 X4.0032 Z-0.1287
G2 X4.0008 Z-0.1315 R0.008
G1 X4.0003 Z-0.1327
G2 X4. Z-0.1342 R0.008

 

(I've tried different posts and have already changed the "built-in" post properties necessary to make small arcs)

 

Overall fusion is a great product and value for the price point but the turning portion is a major black eye

7 REPLIES 7
Message 2 of 8
seth.madore
in reply to: cnc.shop

Interesting, that's not expected. What post processor are you using?


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 3 of 8
cnc.shop
in reply to: cnc.shop

Very unlikely to be a post problem

 

Haas turning, haas ds30y, Mitsubishi, Doosan, okuma, and acramatic all do the same thing

Message 4 of 8
drd_808
in reply to: cnc.shop

any chance this will be fixed soon?

Message 5 of 8
HughesTooling
in reply to: drd_808

@drd_808 Can you supply a test file with the problem? Are you using a spun profile in the setup and what tolerance?

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Message 6 of 8
seth.madore
in reply to: HughesTooling

With a .0001" spun profile on similar geometry (as the OP defined), I get this:

Z0.0566
X4.1471
G1 X4.3874 F0.004
G41 X4.2583 Z0.
G2 X4.2441 Z-0.0029 I0. K-0.01
G1 X4.0059 Z-0.1221
G2 X4. Z-0.1291 I0.0071 K-0.0071
G1 Z-2.
G40 X3.8869 Z-2.0646

Seth Madore
Customer Advocacy Manager - Manufacturing
Message 7 of 8
HughesTooling
in reply to: seth.madore

@seth.madore The code with all the R0.008 G02 moves reminds me of the problem with 2d contour if you have a convex spline that looks like a radius. Also as the moves have that 0.008 rad, the same as the tip radius makes me think the code it for tip centre? That's why I'd like to see an example file, there are a few things that might cause it. Including, could be a bug!

 

Mark

Mark Hughes
Owner, Hughes Tooling
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Did your question get successfully answered? Then click on the ACCEPT SOLUTION button.

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Message 8 of 8
drd_808
in reply to: seth.madore

I had the spun profile tolerance set to .0004

Changing it to .0001 fixed the issue thanks guys!

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