[Superman]

OK, first things first

Is your machine a 5-axis or a 4 ?
What are the rotary axis addresses, & what linear axis do they rotate around ?


Typically, the WCS is the setup of the part on the machine when all rotary axes are at ZERO, & this WCS is used on all operation for that setup.
Any T/C planes must be legit views capable by the machine when using that WCS. For example, if one view is rotated 180° around Z, the machine is not capable of achieving those angles & would give an error

Until the setup issues are correct, it is then possible to then to see if the actual machine (MMD) file has been done correctly
the 90° maximum could be a result of incorect WCS & planes usage

[kopsik]

The machine is 3-axis plus rotary indexer which rotates around the x-axis. It is positioned on the left side of the table (It seems that in mastercam the indexer is ment to be by default on the right side and all my rotations are the wrong way around).

[Superman]

So, you have a rotary axis along X, Do you call it A ?

But.....why do you have it under the toolchanger ?????

- when the machine homes to the rear left corner, you have access to the whole table.
- if the tool is too long, you've crunched the tool & A-axis, or you are really restricting your machining capacity
- if clamp/unclamping, you are getting too close to sharp edges
- it is the end where the swarf is evacuated

I'd say standard placement is the head on the RH of the table, like the attached image


plus...why a 5-axis post ?...you may be better to use a 4-axis post so that you don't get code for a 5-axis machine

[kopsik]

The indexer is placed on the left side because on the top right side is our OTS probe.

We use the 5-axis post because the code looks nicer and it doesn't have a X0. command during tool change and at the end.

And yes I call it A-axis.

PS! I am a complete newbie when it comes to milling+mastercam. We have had the machine for almost a year now and we learn as we go.

Our Haas mill