Sub spindle lathe wcs setup - is this correct?

[Infernalmecanix]

Hi!

I have 2 setups in my cam. The first for spindle one which works great and the second for spindle two. I have spindle two tool setup correctly and I have spindle direction correct. Tool path looks good but the wcs is not correct. Z should be in the opposite direction according to the machine kinematics and Y is the wrong way around going down not up although there is actually no y axis on the sub... Is this all correct? I can also upload the file is necessary. Thank you!

[seth.madore · Accepted solution]

You cannot set your WCS the way you expect it to, it's a limitation of Fusion. However, the correct directions will  should be handled by your post processor. My Lynx is the same way (positive is INTO the spindle)

[Infernalmecanix]

Hi Seth,

ok, thank you. That answers my question. I will give it a go a see what happens..

Thanks!

[v.pesic5RFAR]

For anyone else finding this thread:

The Z-axis should indeed be pointing in the wrong direction with respect to the (away from the spindle), and the tools must be defined as right hand even if they are left hand in real life. On my machine (Lynx 2600 SY) the spindle direction was also reversed, not sure if that has to do with the tool orientation but in my case I had to toggle "Reverse spindle direction on sub-spindle".

Here's my setup:

This generates the following G code, where you can see the Z axis does indeed travel in the positive Z direction, which is correct (ignore the M3 P13 lol):

(PROFILE ROUGHING2)
G97 S1273 M3 P13
G0 Z-5.
X200. Y0.
G96 S800 M3 P13
Z-1.875
X176.5
G1 Z26.8 F0.25
X180.
X182. Z25.8
G0 Z-1.875
X173.
G1 Z26.8
X176.5
X178.5 Z25.8
G0 Z-1.875
X170.5
G1 Z26.8
X173.
X175. Z25.8
G0 Z-1.875
X168.
G1 Z1.269
X168.4 Z1.469
Z13.335
X168. Z15.621
Z26.8
X170.5
X172.5 Z25.8
G0 X200.
Z-5.
G97 S1273 M3 P13
M9
G30 U0.
G30 V0. W0.
M110
M1

[TrahTibidoh]

You should create a separate setup for the counterspin, rather than trying to do everything in one.

[seth.madore]

That is correct. Both Setups should be initially created as "main spindle" orientations, with the correct "Main/Subspindle" selected in the Setup.

Regarding tooling, we actually have an Insider Preview that solves for the "define your tool as RH but it's a LH in reality". 

You need to be a member of the Insider Program to access that feature. Membership is free, but it does involve an application process. You can apply here: https://feedback.autodesk.com/key/Fusion360Insider

The feature is an overhaul of the Tool Orientation UI in the tool library and it now correctly solves for the issue of not being able to define your tools correctly.

[v.pesic5RFAR]

I do have a separate setup for the sub spindle.

[programming2C78B]

you program sub-work as if it was sitting in your main spindle (in regard to Z)
You designate the Setup folder as Subspindle

The post then flips the direction for Z moves to make it work on the machine. 

I havent had issues with tool handedness being wrong. 

[TrahTibidoh]

Assign a counterspin here