What helped me a lot was pushing the HMD in towards my head at the top and pulling it out at the bottom, give it a go 
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If someone start a company that print perfect foam for people, it would be revolutionnary.
Just needing to send a 3D scan of our head and every straps and foam would be 100% custom.
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the problem is every ones eye inset & eye placement is different. how do you even measure? part of the solution is the way vive has the ability to set the distance of the hmd from your Face/eyes, and each side can be dialed in to a different distance. Would have been way more effective than just a face foam
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A user here posted there is 3dprinter memory foam filament.
@bosnaboi Yes thats the normal physical minimum measurement between both lenses. 59.9MM minimum IPD on screen translates to 70mm physical. Theres a discrepancy of 10mm.
Manual says 55mm so in reality a fix for an extra 15mm IPD room must be made to address those customers who backed and purchased Pimax under the pretense of being able to use the 5k+ and the 8k between 55-60mm IPD ranges.
@anon74848233 @PimaxUSA @mozi @Sean.Huang
Will there be a solution provided such as low IPD lenses for 190 diagonal/160 horizontal fov such as Aspheric lenses or even the same fresnel lenses currently used with some mm shaved off the interior of the lenses near the nose bridge and a compressible lens adapter to fit the same lens socket?
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For those saying the discrepancy is caused because of Near vs Far IPD measurements, and Pimax shows Near or Far IPD on screen that isnt true.
After speaking with my mate a 15+ year optician he picks a flaw in that process.
Raw (Far) IPD is for distance. IPD - 3mm (2 to 2.5mm for youngsters) is your NEAR. Since the lenses are about 5 mm from my eyes, setting it to my raw (far) IPD created eye strain.
That means everyone needs -3mm their normal (raw/far) IPD measurement to get an accurate Near IPD, which only works at close distances from the lenses.
The further away your face is because of face foam, you may have to use your raw/far IPD reading which is as measured.
The matter of fact is there is a discrepancy of at least 10mm more, not less, between on screen IPD and physical distances between the middle of the sweet spots of both lenses, and just because the screens are curved that cant physically reduce 70mm to 60mm or even 55mm if the physical minimal measurement between the middle of both lenses is 70mm.
Increasing facial distance from the foams can maybe help with incorrect IPD, but likely only by a few mm.
But as far as I can tell people with 65mm IPD need a 55mm on screen reading (impossible) to get a true 65mm.
65mm on screen is 75mm physical.
59.9mm, which is the mininum on screen, is actually 70mm.
Thats why some people report issues at 65mm IPD and others don’t, because no ones truly looking through the middle of the sweet spots at 65mm IPD and some may be lucky enough to get away with it due to biological variance, due to the fact 65mm raw/far IPD users are at the very edges of the sweet spots with 65mm IPD and 59.9mm on screen (70mm minimum physical)
There needs to be at least +10mm more IPD room on newer models I think, or models with that option, and that 10mm discrepancy should be addressed and fixed.
@PimaxUSA @mozi @anon74848233 @Sean.Huang
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Yes, it is perfectly normal, because of the headset design. (https://community.openmr.ai/t/clarifying-near-ipd-x-distant-ipd-confusion/14809). The supported IPD range is from ~60 to 72 mm and distance between the lenses centers is always about ~11 mm more.
Maybe you should paint a big fat red cross over image 3, to make it harder to wilfully ignore… 
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I have an IPD of 60.0 with 20/20 vision … professionally measured. I too found that if I angle the bottom out slightly it greatly improved the visual and comfort of both of my Pimax units … no blur or headaches.
You can share my post about the subject, which I linked above with your mate, so he could help you (and himself) to understand the optics of the Pimax.
The screens are not curved, they are angled and they are (together with the lenses) set up for divergent views. Not in the sense they you have to have a divergent eyes in order to look into them, but in the sense that they have their optical axes divergent (and not parallel as in any other headset).
This setup (which was clearly a design decision) has several important consequences (which I also mention in my original post). I would be interested to hear from an experienced optician what he thinks about them.
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I got a IPD of 64,5 and still get eye strains. But i can live with that, someday the eyes will get used to it. The most annoying thing for me is the +20% increased size of everything. This makes it unplayable for me, the feeling to be a hobbit is realy annoying.
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Yes but looking at your diagram it is floored, both eyes should get the same magnification when looking straight ahead, and when looking slowly to the left then both eye match in magnification but in your diagram the more you look left the more the magnification gos out of sync.
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Plus an optician specializes in glasses & not projectors. Different area of optic fields but related.
Im not sure but some people are asking for a 10-15 mm extra adjustment that cant happen without a lens redesign, between myself and possyguset measured the physical gap between lens,s @64ipd which was 7.8 -7.99 so for arguments sake 8mm (10-15) so you can see what im getting at
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Look at the OPs posts in this thread, there have been meetups to test the eye strain and IPD issues with multiple backers who have above 60mm IPD.
All the OPs tester friends (6 of them) also have reported experiencing some eye strain after fitting headsets to their heads extensively, indicating some improvement to correct IPD issues and eye strain need to be made.
Asking for clarity on this has resulted in posts on the subject been deleted and ignored, the matter of fact is that there is a big issue with minimal IPD and eye strain being swept under the carpet, which has resulted in many backers and preorders having to sell their headsets after fitting and after trying their best to achieve clarity, because they were simply unable to no matter how hard they tried.
Pimax specified 55mm minimal fov in the kickstarter product specifications, they delivered a product which is 70mm minimal fov (or 60mm if you believe pitool which supposedly takes into account the fact the displays are cantered).
Pimax’s only address to this was that they would make a better face foam adding more distance, this may fix the issue for some, but would unlikely resolve the issue for people with 55mm IPD as some users with 64mm IPD are reporting being unable to get clarity in both eyes and/or eye strain as well.
What’s the plan to address the fact users with 55mm IPD can’t use their devices when they may have backed under the premise that they could use it because of minimal 55mm fov?
Bump this issue until it addressed with an actual solution.
@PimaxUSA @Dallas.Hao @Sean.Huang @Doman.Chen @Alan.sun @Matthew.Xu @xunshu @mozi @Pimax-Support @PimaxVR
Here’s some possible solutions for you to explore
- New 160 fov lenses and adaptors to reach 55mm IPD, removing a section of the inner lens above the nose.
- Software IPD adjustment.
- Individual per eye IPD knobs on future models, old devices exchangeable for new models for those who have IPD issues.
- Redesign of lens seatment in future models to allow for smaller IPD adjustment, old devices exchangeable for new models for those who have IPD issues.
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Just new lenses to replace would be nice, because they are realy easy to take out. I got a IPD of 64 and there are just 3 - 4 mm missing for a perfect image. I would pay for it if needed, just to get a solution.
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Polls are also showing a fairly large amount of backers are experiencing eye strain with 64mm or less IPD, currently more users, than those not experiencing eye strain. https://community.openmr.ai/t/do-you-get-eye-strain-or-blur-in-one-lens-with-an-ipd-above-or-below-64mm/17250
Could the community get a response with an actual solution to address low IPD users with 55mm IPD being unable to get clarity in both eyes and having to sell their preorder and backer headsets? Thats at least 5mm less than the minimal supported IPD and 5mm short of the minimal IPD outlined on the kickstarter product specifications. (60mm/70mm is the minimal IPD current headsets can go down to.)
Also a response on an actual solution to address the eye strain issues reported unanimously by 6+ backers all with over 60mm IPD testing each others headsets, which has also caused preorders and backers to sell their headsets after extensively trying to make them fit properly to not cause eye strain and get a clear image in both eyes and still being unable to use them?
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Can you post links to specificstions on ipd? I have only found 1 post in the forums on ipd range from a pimax rep. The Kickstarter page doesn’t have ipd range on spec page or Faq.
I will look into deleted posts. I have moved posts to topics that already exist & will likely work on merging duplicate topics.
EDiT: None of your posts have been deleted related to ipd issues.
There is not enough study to say those experiencing eye strain are greater or lower than those who do not.