So I've grown extremely tired of the fact that you can't adjust the lenses in the Pimax for your IPD. My real IPD is 68 and the Pimax IPD, the distance between the center of the lenses, is about 62. With software IPD at about 57 I get the best results but it feels extremely tiring on the eyes and I feel always very uncomfortable after a gaming session. Of course because you're looking cross-eyed (that's why the software IPD needs to be lower than 62, since you're looking inwards if your real IPD is higher). So I decided let's try some mod.
So I figured, since I need to increase the IPD with 6, I need to move both lenses 3 mm outside. You can not change the distance between the lenses and the panel since then the image won't be sharp anymore. So the only way to do this is either cut some plastic of the lens holders OR cut some plastic of the part where the lens holders touch the HMD. I decided to do the last.
The lens holders are connected with 3 little 'feet' that each contain a screw each. What I did, is I cut off 2 of these feet, kept the 3rd so I could still use one screw and after cutting the plastic on the mentioned places everything 'leveled' like it was before.
This worked ! I've set sofware IPD now to 69 which yielded the best result and everything is so much better in focus and it feels so much more relaxed, the IPD is correct now.
However before anyone attempts, there are a few challenges that I've yet also still need to resolve:
1) there's a plastic holder that normally goes last over the lenses. It doesnt fit anymore, I still need to cut it. I currently just assembled it without the holder, it works fine BUT the holder is the part with the front strap connector so you will want to use it
2) since I used only 1 screw instead of 3 per lens holder, it's pretty unstable and the lenseholder + lens can easily move towards you due gravity. Even if it moves a few mm, the display becomes unsharp. So I need a better way to attach it, I might try glue.
3) It's also a challenge to move the lenses outwards by the exact same distance. If this is incorrect, the image won't look good.
4) As you might have guessed, moving the lenses outside diminishes the FoV a bit, because you're now looking over the edges of the panel. So you see vertical black parts. This is a disadvantage but it's only minor compared to the advantage of having finally correct hardware iPD.
Anyway I'm really happy so far, everything looks so much better and feels so much better, but I still need to overcome the last few challenges to really make it a success.