Turn a 5 axis haas post processor into a 4+1

CAD/CAM/CNC
1

Good evening everyone,

Long story short, My college has a 4+1 leadwell 5 axis mill, but the professors have not been able to get quality 5 axis post processors for it yet.

So what I did is take a haas post processor for fusion 360 (free download), and I tweaked the rotation parameters to make it work for the leadwell v20it.

However, the post processor is still posting full 5 axis moves and I want it to post in a 4+1 configuration.

If any of you have advice on how to make a 5 axis post processor post in 4+1, I would greatly appreciate it.

Best regards.

1 Like
2

if (true) {
var aAxis = createAxis({coordinate:0, table:false, axis:[1, 0, 0], cyclic:true, preference:1});
var bAxis = createAxis({coordinate:1, table:false, axis:[0,1,0], cyclic:true, preference:1});
machineConfiguration = new MachineConfiguration(aAxis, bAxis);

setMachineConfiguration(machineConfiguration);
optimizeMachineAngles2(1); // map tip mode
3 Likes
3

Hi Daniel,

Thanks for your response and I do appreciate it.

However, your solution did not work. Whether it was because I did something wrong, or some other issue, I don’t know yet. I’ll look into it more in a few days.

Here’s the story.

For your reference I’m using an edited haas trunnion.cps post processor. I edited the A axis to rotate negative for the leadwell v20it machine with good results. I have successfully programmed 5 parts in 3+2 mode with it. and have made the C axis swarf cuts to work if I manually take Z or A gcodes out of my entire program code.

When I put your code into my post processor, instead of keeping the Z axis or A axis close to a static position, (which is what I wanted for this particular cut), it eliminated the Z, and made the A axis rotate from about -50.0 to +50 degrees. This was not what was intended, nor would our machine cut the part properly that way.

As mentioned, I’ll look into again later. If you have any more idea’s, I would appreciate them.

Thanks again.

4

Can you attach a copy of the post

1 Like
5

the posts are attached.

The test delete post still has my axis range values in them. The test delete 2 has the axis range values removed. They both gave me the same results however.

The 4+1 cps is a copy of my current working (simultaneous 5 axis) post right now in case you need to reference it. (Based from the haas trunnion.cps post)

Thanks again.

(Attachment TEST DELETE TEST DELETE 2.cps is missing)

(Attachment TEST DELETE TEST DELETE.cps is missing)

(Attachment 4+1 machine.cps is missing)

6

i’ll contact tech support and verify why I can’t attach my post.

7

daniel_lyall@hotmail.com

8

Can you send me a file that you have done with toolpath that you want 4 + 1 on you are getting 3 + 1 and 3 + 2 positional

9

I just sent an email with some parts.

to clarify what you said, You quoted., “that you want 4 + 1 on you are getting 3 + 1 and 3 + 2 positional”

I’m actually getting simultaneous 5 axis movements. I need them to be 4+1.

3+2 is a totally separate unnecessary issue in this matter; my 3+2 programming with this post processor is just fine.

Thanks again.