5 axis needs A-B axis reverse

[DaveR]

Does anyone know how to reverse the direction of the A and B axis on the Haas 5 axis trunion post?

 

I currently have it going away from the operator, needs to come toward me, rotation is wrong direction also.

Could not find it digging through the machine or control def. Is it a post setting?

[gcode]

this tells you which is primary and which is secondary

 

#Assign axis address

str_pri_axis : "B"

str_sec_axis : "A"

str_dum_axis : "C"

 

this is where you make the changes

 

 

#Primary axis angle description (in machine base terms)

#With nutating (mtype 3-5) the nutating axis must be the XY plane

rotaxis1$ = vecy #Zero

rotdir1$ = -vecx #Direction <----add or remove a minus sign here

 

#Secondary axis angle description (in machine base terms)

#With nutating (mtype 3-5) the nutating axis and this plane normal

#are aligned to calculate the secondary angle

rotaxis2$ = vecz #Zero

rotdir2$ = vecy #Direction <----add or remove a minus sign here

 

 

this code is copied from a stock Haas VF-TR post

make a copy of you post before you start changing thin

 

 

[crazy^millman]

It is going to be a post setting. Look at the mat settings in the post they control output direction with respect to axis direction.

[Trevor Bailey]

before getting too crazy in the post, check your misc values first. you may have it programmed, but the posted code is incorrect. check mi9$ and mi10$. play with those before you start screwing with the post.

[DaveR]

Ok Ill try those. Thanks for the help.

[DaveR]

this tells you which is primary and which is secondary

 

#Assign axis address

str_pri_axis : "B"

str_sec_axis : "A"

str_dum_axis : "C"

 

this is where you make the changes

 

 

#Primary axis angle description (in machine base terms)

#With nutating (mtype 3-5) the nutating axis must be the XY plane

rotaxis1$ = vecy #Zero

rotdir1$ = -vecx #Direction <----add or remove a minus sign here

 

#Secondary axis angle description (in machine base terms)

#With nutating (mtype 3-5) the nutating axis and this plane normal

#are aligned to calculate the secondary angle

rotaxis2$ = vecz #Zero

rotdir2$ = vecy #Direction <----add or remove a minus sign here

 

 

this code is copied from a stock Haas VF-TR post

make a copy of you post before you start changing thin

 

 

 

Question

 

 

 

*edit* OK I got it to work by changing the secondary axis misc value.

 

Thanks for your help!

 

funny changes to the post did not change output...is it locked or something?

[Trevor Bailey]

dave i am emailing you a z2g file that has a trunnion with it. you will also get the mcx file showing the right rotations with correct misc values set up. use the machine def i am sending you or make the default changes to yours.

 

 

[DaveR]

Hey thanks Trevor!

[Trevor Bailey]

send me an email so i can reply back to you. i thought i had yours thru facebook, but i dont see you in my friends list.

[Jayson Kramer]

Trevor can you send to me. I want the trunion model you have please.. thanks

[DaveR]

Trevor has helped me quite a bit.

 

Still have a strange issue though.

 

When I post the file he sent (which is a proven good file for the Haas TR machines) the code posts out, bringing the z axis down behind the trunnion table, far as I can tell the Y axis sign is reversed, should be a -, and is a + number

 

I tried moving the trunnion model and geometry around to where my TR110 would sit and I get the same result.

 

(the TR110 is the really small Haas trunion, it has the platter 3.1" above the tilt rotation zero)

 

Anyone ever seen this before? Know what the fix is?

[gcode]

In most cases, there are 2 solutions for ever 5X vector on a trunion type machine..

You can usually for the on you want with misc settings mi4 , mi5 or mi10

 

mi4 - Start initial primary rotary axis bias

# +/-999 represents start as close to limit as possible

# 0 represents calculate without using bias

# Any other value represents an angle in degrees to attempt

# to position near.

# -999 = Low, 0 = Off/Default, 999 = Hi, Value = Angle bias

#

# mi5 - Start initial secondary rotary axis bias

# +/-999 represents start as close to limit as possible

# 0 represents calculate without using bias

# Any other value represents an angle in degrees to attempt

# to position near.

# -999 = Low, 0 = Off/Default, 999 = Hi, Value = Angle bias

 

mi10 - Secondary axis control (non-nutating)

# 0 = Continuous secondary (primary controlled)

# 1 = Always stay positive

# 2 = Always stay negative

 

 

 

[DaveR]

In most cases, there are 2 solutions for ever 5X vector on a trunion type machine..

You can usually for the on you want with misc settings mi4 , mi5 or mi10

 

mi4 - Start initial primary rotary axis bias

# +/-999 represents start as close to limit as possible

# 0 represents calculate without using bias

# Any other value represents an angle in degrees to attempt

# to position near.

# -999 = Low, 0 = Off/Default, 999 = Hi, Value = Angle bias

#

# mi5 - Start initial secondary rotary axis bias

# +/-999 represents start as close to limit as possible

# 0 represents calculate without using bias

# Any other value represents an angle in degrees to attempt

# to position near.

# -999 = Low, 0 = Off/Default, 999 = Hi, Value = Angle bias

 

mi10 - Secondary axis control (non-nutating)

# 0 = Continuous secondary (primary controlled)

# 1 = Always stay positive

# 2 = Always stay negative

 

I think I have the rotary direction thing figured out. It was MI10 that fixed it, set to "2", Trevors files had that correct for my machine too.

 

Now it appears to be a Y axis issue as described right above your last post.

 

Ever seen that?

[Trevor Bailey]

email sent jay.

[Rayginn]

In the generic post it does not seem to have those switches am I looking in the wrong place.

 

D Coffin

www.rayginn.com

[crazy^millman]

Generic posts are many which specific post are you talking about?

[Rayginn]

The generic haas vf 5x post. Any help thanks

 

Don Coffin

www.rayginn.com

[crazy^millman]

I looked in your other thread and your .z2g does have these very settings and your mi9 was set to 2 for everything look over there for my response and see if I helped you out.