DIY Oculus Rift - schematics, instructions and build pics!

Post by **Dycus** » Tue Sep 11, 2012 3:10 pm

TheLostBrain wrote:
Dycus wrote:Looks super sexy.

I want to make some vacuum-formed ones. Or is somebody gonna beat me to it?
Won't beat you to vacuum-formed... but I do have one of these that's been built and sitting in the garage for close to a year now. http://www.ultimaker.com/

I've yet to play around with with plastic design but probably should as it's a much more appropriate candidate for housings than my CNC'd birch ply I suppose

Looking forward to seeing what you come up with

Aw, lucky! I've wanted a 3D printer for a long, long time. 3D printer and CNC... all I have is a Dremel.

No idea when I'll be making some vacuum-formed ones, if I ever do before the dev kits come out. It's just an idea. If I do, though, I'm sure you guys will be seeing it!

Post by **IGameArt** » Tue Sep 11, 2012 3:36 pm

Dycus, you dont need a 3d printer if you use a service like Shapeways.com. Of course the only downfall, if you can call it that, is anyone will have the ability to print your files, of course after paying to do so.

Post by **rfurlan** » Tue Sep 11, 2012 3:54 pm

Dycus wrote:Aw, lucky! I've wanted a 3D printer for a long, long time. 3D printer and CNC... all I have is a Dremel.

3D printers are awesome if you can afford a deposition printer. My limited experience with thermoplastic extrusion printers (the cheaper ones) is that they have very low yields - not only they are slow (6-8 hours for a small job) but most printed objects are flawed. It can also take 2-3 hours before you realize you will have to abort.

Took me 3 days (7 attempts) to print this part (picture) with this printer (http://bit.ly/wFtCKm):

Post by **simmoi** » Tue Sep 11, 2012 8:24 pm

marbas wrote: Hi!
Glad to see my distortion test app being put to good use
How does it look through the lenses? Are you able to tweak the values to get acceptable visual results?
As I've started working on a game idea for the Rift I have abandoned this project for now. But let me know If there is something I can do to improve the distortion test application.

Hi! It worked very well, Looks great through lenses, edges are a little blurry (due to using ultraoptix lenses I think) but visual results were great without even tweaking !

If I do try it again, I'll do some tweaking and let you know how it goes.

Thanks

Post by **rfurlan** » Tue Sep 11, 2012 10:36 pm

TheLostBrain wrote:I found this book pretty informative and entertaining:
http://www.amazon.com/Better-Be-Running ... 0979576024

It was written by the guy who runs this place I believe:
http://www.quickparts.com/Home.aspx?s_k ... nQodR1QAGA

...which also happens to have a learning center:
http://www.quickparts.com/LearningCenter.aspx

Thank you for the links! Already ordered the book going through the learning center now

Post by **sellars** » Wed Sep 12, 2012 9:09 am

TheLostBrain wrote: Couple Issues:
1) Weight! Although still very usable it's definitely heavier than foam board, etc by far. Think I may look into alternative materials and an even simpler design at some point because of this.

I'd suggest not changing your material (at least for a first trial) - and cutting out the centre of each panel to either leave a outline frame for each side (including maybe the front), or if you need more rigidity, leave a cross brace. Then cover the outside with something light fast (few layers of duct tape works). This should drastically cut down the weight, keep the rigidity, and save looking for more materials

I created mine using an ABS project box, and while it's pretty light, I could save even more weight with the above, but I'm happy with it for now

Post by **TheLostBrain** » Wed Sep 12, 2012 10:42 am

sellars wrote: I'd suggest not changing your material (at least for a first trial) - and cutting out the centre of each panel to either leave a outline frame for each side (including maybe the front), or if you need more rigidity, leave a cross brace. Then cover the outside with something light fast (few layers of duct tape works). This should drastically cut down the weight, keep the rigidity, and save looking for more materials

Now THAT my friend is an awesome idea!

Instead of duct tape I think I'll go with a super thin birch ply (me an my damn wood lol) laminate sheet they sell... and I'll place it on the inside as apposed to the outside as I think the cut-outs may offer something in terms of aesthetics (further taking away from the 'boxy' look) if done right.

Also, if ever come up w/ a final design using sheets like this (vs 3d print, etc)... I think this would be an awesome material to do it in

:
http://www.dragonplate.com/

Dude, seriously good idea! Thanks!

Post by **brantlew** » Wed Sep 12, 2012 11:00 am

TheLostBrain wrote:Also, if ever come up w/ a final design using sheets like this (vs 3d print, etc)... I think this would be an awesome material to do it in :
http://www.dragonplate.com/

Cool find. I've got another project that is weight sensitive. How does carbon fiber compare to aluminum in terms of weight, strength, and ease to work with?

Post by **TheLostBrain** » Wed Sep 12, 2012 11:06 am

Figured I'd post some DIY eye candy...

While this particular lens assembly is for a different HMD project of mine... I've been thinking up a good lens design for this project too.

Just thought you guys might dig the visuals as much as I do

Post by **brantlew** » Wed Sep 12, 2012 11:37 am

Drool...you've got an impressive work-shop. I still build things with hand-drills and hacksaws and materials balanced on 2x4's.

Post by **FingerFlinger** » Wed Sep 12, 2012 12:01 pm

Are you polishing on a wheel or by hand? My dad has got a CNC mill I could use...

Post by **TheLostBrain** » Wed Sep 12, 2012 12:44 pm

brantlew wrote:Drool...you've got an impressive work-shop. I still build things with hand-drills and hacksaws and materials balanced on 2x4's.

Thanks

Yeah I hear ya. I bought a few things over time to help with prototyping...drill press..mini scroll saw.. wet tile saw (for cutting nose-reliefs in large diameter lenses), etc. but the CNC machine has so far definitely been the single most useful and versatile investment to date. It definitely feels empowering to be able to design something and then essentially have it come to reality like these things allow you to do.

Post by **TheLostBrain** » Wed Sep 12, 2012 12:50 pm

brantlew wrote:Cool find. I've got another project that is weight sensitive. How does carbon fiber compare to aluminum in terms of weight, strength, and ease to work with?

Honestly haven't gotten to work with it yet but I've read that you can work with it like wood in many respects... cut it with table saw / scroll saw, drill it, CNC it, etc. Although I have heard that laser cutting isn't recommended due to some terrible fumes?

As for how it compares to aluminum.. again from what I've read... it *should* have a much higher strength to weight ratio.

Scroll down a bit on this page and it compares it to meta (looks like they specifically discuss aluminium as well):
http://www.dragonplate.com/sections/technology.asp

And more cool info a bit down on this page:
http://www.dragonplate.com/faq.asp

Post by **TheLostBrain** » Wed Sep 12, 2012 1:19 pm

FingerFlinger wrote:Are you polishing on a wheel or by hand? My dad has got a CNC mill I could use...

I've only polished by hand but A nice buffing wheel would probably be cool too just haven't tried it.

There's probably a bit of overlap here but my approach is basically:
1) Wet sand ~1 min each of the following: 320, 400, 600, 800, 1000, 1500, 2000 and 2500
2) ~1 minute each of: Novus 3 step polishes

3m 320-800 wet/dry sandpaper:
http://www.amazon.com/3M-03024-Imperial ... r+assorted

3m 1000-2500 wet/dry sandpaper:
http://www.amazon.com/3M-03006-Wetordry ... r+assorted

Novus Polish:
http://www.amazon.com/Novus-Polish-Plas ... tic+polish

If you want to get crazy you can even do your own vapor polishing w/ some methylene chloride...but this is DANGEROUS stuff (as in fatal -check the MSDS) if not handled in the most careful manner.

Methylene Chloride:
http://www.ebay.com/itm/1-gallon-Methyl ... 27ca9b5ac3

Here's an example of Vapor Polishing in action:
http://www.youtube.com/watch?v=bduno3eafcc

(NOTE: I assume no liability for this but for a quick DIY: Outside in the open air...w/ protective gloves on + eye protection... place a cheap foil tin on table, etc... fill it w/ a bit of methylene chloride... suspend the object to be "polished" ABOVE the methylene chloride (NOT in it)... put plastic wrap, etc. over the top to seal it. Now evenly heat the base of the tin w/ a hair dryer. It should only take a few moments before the methylene chloride starts to vaporize and you see your part start to go clear.)

All in all though in terms of polishing really not too overly concerned w/ the time it takes to polish because if you're looking to do a short run of a few lenses (or even quite a bit, really)... you just need one good 'master' and then you create a mold off of it and then cast from that...definitely more efficient time wise

Post by **BHawthorne** » Wed Sep 12, 2012 1:24 pm

Flawed parts? It's what bondo was created for. hehe

I'm not a fan of additive machining. I'd just as soon CNC a mold and do RTM.

Looking good on the machined acrylic, what CAM app do you use to make the toolpaths? I know a bit of mastercam and featurecam.

Totally off topic but it's good to know you can polish tooled acrylic. I have an aircraft canopy that has minor exterior crazing I wanted to remove. Now I know it might be possible to refinish it without replacing it.

Post by **space123321** » Wed Sep 12, 2012 8:07 pm

rfurlan wrote:
space123321 wrote:LOL - sorry! I am now onto version 3 of my HMD - will now be a more permanent solution getting away from the foam core sheets.
What are you going to use?

I had made up a version utilizing a plastic project box and welding mask as a light blocker however the weight was just too much compared to the foam core box. I redid my original version utilizing the ski googles and I am completely satisfied with the outcome... wiimote hooked up as the tracker - good as gold until the rift comes along! Exciting times ahead!

Post by **TheLostBrain** » Thu Sep 13, 2012 11:38 am

space123321 wrote: I redid my original version utilizing the ski googles and I am completely satisfied with the outcome... wiimote hooked up as the tracker - good as gold until the rift comes along! Exciting times ahead!

Very clean looking - I like it! ... and I bet it's like 20x lighter than mine too.

You just doing mouse emulation w/ the wiimote? Also, is it just a standard controller or one of the 'advanced' ones?

Post by **TheLostBrain** » Thu Sep 13, 2012 11:50 am

BHawthorne wrote: Looking good on the machined acrylic, what CAM app do you use to make the toolpaths? I know a bit of mastercam and featurecam.

Thanks! I use HsmWorks - It's an add-on for SolidWorks.

BHawthorne wrote: Totally off topic but it's good to know you can polish tooled acrylic. I have an aircraft canopy that has minor exterior crazing I wanted to remove. Now I know it might be possible to refinish it without replacing it.

Yeah, I was actually very surprised the very first time I polished a piece of acrylic to optical clarity. I honestly thought to myself - 'wow... it can't really be that easy is it?' But it is.

Post by **space123321** » Thu Sep 13, 2012 12:01 pm

TheLostBrain wrote:
space123321 wrote: I redid my original version utilizing the ski googles and I am completely satisfied with the outcome... wiimote hooked up as the tracker - good as gold until the rift comes along! Exciting times ahead!

Very clean looking - I like it! ... and I bet it's like 20x lighter than mine too.

You just doing mouse emulation w/ the wiimote? Also, is it just a standard controller or one of the 'advanced' ones?

Thanks - turned out very nice and yes weight is extremely light. In terms of the wiimote - just basic mouse emulation combined with an xbox controller. I have the hydra however prefer the wiimote setup for the current tests. The wiimote is the basic one, however I had the motion plus adapter that came out before the 'advanced' wiimote with motion plus included. With the help from Pierreye I added an extension cable from the tracker to the wiimote, therefore I have the small tracker attached to the HMD and the wiimote at my side.

I am also interesting in testing my iphone as a tracker for the HMD, however I can't get Brantlew's FreePie console release (with the Iphone code) started on my PC at the moment?

Post by **CyberVillain** » Fri Sep 14, 2012 1:10 am

space123321 wrote:
TheLostBrain wrote:
space123321 wrote: I redid my original version utilizing the ski googles and I am completely satisfied with the outcome... wiimote hooked up as the tracker - good as gold until the rift comes along! Exciting times ahead!

Very clean looking - I like it! ... and I bet it's like 20x lighter than mine too.

You just doing mouse emulation w/ the wiimote? Also, is it just a standard controller or one of the 'advanced' ones?
Thanks - turned out very nice and yes weight is extremely light. In terms of the wiimote - just basic mouse emulation combined with an xbox controller. I have the hydra however prefer the wiimote setup for the current tests. The wiimote is the basic one, however I had the motion plus adapter that came out before the 'advanced' wiimote with motion plus included. With the help from Pierreye I added an extension cable from the tracker to the wiimote, therefore I have the small tracker attached to the HMD and the wiimote at my side.

I am also interesting in testing my iphone as a tracker for the HMD, however I can't get Brantlew's FreePie console release (with the Iphone code) started on my PC at the moment?

Why not use the official release? It has the iPhone plugin integrated.

Post by **vvortex3** » Fri Sep 14, 2012 3:20 am

Is anyone willing to sell one of their completed Rift DIY sets? Please PM me.

Post by **BHawthorne** » Fri Sep 14, 2012 9:14 am

TheLostBrain wrote:Prototype HMD (~100 FOV) - Specs and design to be shared after patent issued.

I saw that line in your sig. Current trends in patent litigation across all the tech industry frankly scares the heck out of me right now. What is involved in getting a patent issued and how does patent law effect those making these new HMDs? I'm scared of patent law stifling cool projects.

Post by **Dycus** » Fri Sep 14, 2012 2:24 pm

BHawthorne wrote:
TheLostBrain wrote:Prototype HMD (~100 FOV) - Specs and design to be shared after patent issued.
I saw that line in your sig. Current trends in patent litigation across all the tech industry frankly scares the heck out of me right now. What is involved in getting a patent issued and how does patent law effect those making these new HMDs? I'm scared of patent law stifling cool projects.

I think we'll be fine as long as we don't put any white, black, glossy surfaces or rounded corners, seeing how Apple has patents on all those.

</sracasm>

Post by **TheLostBrain** » Fri Sep 14, 2012 2:48 pm

Dycus wrote:
BHawthorne wrote:
TheLostBrain wrote:Prototype HMD (~100 FOV) - Specs and design to be shared after patent issued.
I saw that line in your sig. Current trends in patent litigation across all the tech industry frankly scares the heck out of me right now. What is involved in getting a patent issued and how does patent law effect those making these new HMDs? I'm scared of patent law stifling cool projects.
I think we'll be fine as long as we don't put any white, black, glossy surfaces or rounded corners, seeing how Apple has patents on all those.

</sracasm>

Lol - No kidding

Apple's filed for multiple HMD patents over the years but I find this particular one from 2008 the most laughable.
http://appleinsider.com/article/?id=13008

A+ on general concept for the time but F on implementation... Something tells me this guy's having a bad day with that cell phone shoved through his sinuses. - Well that's one way get around minimum eye-relief constraints. lol

Post by **BHawthorne** » Fri Sep 14, 2012 3:58 pm

TheLostBrain wrote:Lol - No kidding

Apple's filed for multiple HMD patents over the years but I find this particular one from 2008 the most laughable.
http://appleinsider.com/article/?id=13008

A+ on general concept for the time but F on implementation... Something tells me this guy's having a bad day with that cell phone shoved through his sinuses. - Well that's one way get around minimum eye-relief constraints. lol

2010....April 1... April Fools joke.

Post by **TheLostBrain** » Fri Sep 14, 2012 10:38 pm

BHawthorne wrote:
TheLostBrain wrote:Lol - No kidding

Apple's filed for multiple HMD patents over the years but I find this particular one from 2008 the most laughable.
http://appleinsider.com/article/?id=13008

A+ on general concept for the time but F on implementation... Something tells me this guy's having a bad day with that cell phone shoved through his sinuses. - Well that's one way get around minimum eye-relief constraints. lol
2010....April 1... April Fools joke.

Lol...well April Fools on me then.

Wow, all this time and I never realized that was just a joke - that's what I get for just looking at the pictures I guess.

Post by **zacherynuk** » Sat Sep 15, 2012 3:41 pm

For those in Europe or the UK; I have just had great success with a pair of these: http://www.theloupestore.co.uk/Classic- ... ifier.html

FOV is very high, clarity is top notch and distortion is minimal. (The bulbous side points towards the screen

)

Still not found a 5X equivalent over here COME ON US ORDER!

Post by **Fredz** » Sat Sep 15, 2012 3:50 pm

I live in France and I've bought my 5x magnifiers here for $10,95 + $7,34 shipping each:
http://cgi.ebay.fr/ws/eBayISAPI.dll?Vie ... 0464645845

Post by **zacherynuk** » Sat Sep 15, 2012 3:59 pm

Fredz wrote:I live in France and I've bought my 5x magnifiers here for $10,95 + $7,34 shipping each:
http://cgi.ebay.fr/ws/eBayISAPI.dll?Vie ... 0464645845

Still need to come from US though... I've been waiting a good while now for mine...

Post by **BHawthorne** » Sat Sep 15, 2012 5:01 pm

TheLostBrain wrote:
BHawthorne wrote:
TheLostBrain wrote:Lol - No kidding

Apple's filed for multiple HMD patents over the years but I find this particular one from 2008 the most laughable.
http://appleinsider.com/article/?id=13008

A+ on general concept for the time but F on implementation... Something tells me this guy's having a bad day with that cell phone shoved through his sinuses. - Well that's one way get around minimum eye-relief constraints. lol
2010....April 1... April Fools joke.
Lol...well April Fools on me then. Wow, all this time and I never realized that was just a joke - that's what I get for just looking at the pictures I guess.

Frankly, I wouldn't mind if Samsung or Apple made a HMD (if it was done right). They know parts sourcing to do it miniaturized design and do it with aggressive marketing. They'd never do it for just $300 though unless they knew they could sell 25 million of them. And with Apple you'd know they'd ensure it was estrically pleasing in design, so we all didn't look like the Borg from Star Trek. It would never happen though because the big players adopt, not innovate.

Post by **Endothermic** » Sat Sep 15, 2012 9:36 pm

BHawthorne wrote: And with Apple you'd know they'd ensure it was estrically pleasing in design.

Don't forget that it would only work with Mac, iPhone and iPad, would have very strict policies in place for what you can do with it and what your actually allowed to make for it and half the things you submit will probably be disallowed anyway

and then they'll sue every other HMD on the market for violating their patents and innovation

I think if the consumer RIFT doesn't flunk when it gets released and shows there is a market for such a thing then you can be sure Sony will be brining out a VR HMD (whether PS4 only or universal is the question but I'd bet on universal) rather then just a personal viewer. Chances are they probably have a guys fooling around with VR already but its not a full fledged project yet till they decide there is a big enough market they could make money off and go ahead and put a full department on R&D and get it in production.

Post by **BHawthorne** » Sat Sep 15, 2012 9:38 pm

Endothermic wrote:
BHawthorne wrote: And with Apple you'd know they'd ensure it was estrically pleasing in design.
Don't forget that it would only work with Mac, iPhone and iPad, would have very strict policies in place for what you can do with it and what your actually allowed to make for it and half the things you submit will probably be disallowed anyway and then they'll sue every other HMD on the market for violating their patents and innovation

I think if the consumer RIFT doesn't flunk when it gets released and shows there is a market for such a thing then you can be sure Sony will be brining out a VR HMD (whether PS4 only or universal is the question but I'd bet on universal) rather then just a personal viewer. Chances are they probably have a guys fooling around with VR already but its not a full fledged project yet till they decide there is a big enough market they could make money off and go ahead and put a full department on R&D and get it in production.

People love to bash Apple and seem to gloss over what they're good at. Apple has the fabs and manufacturing base to do some pretty insane things with HMD if they ever wanted to. They also have the retail chain and marketing to back it up. I use Apple purely as an example though. Any of the big names have advantages over garage projects but the big names tend to shun any idea that didn't spawn out of their own R&D departments as irrelevant.

Sony has been making HMDs for awhile now...it's just the FOV sucks.

Post by **rfurlan** » Sun Sep 16, 2012 12:25 am

So this exists now:
http://www.panelook.com/COM48T4Mxxxxx_O ... 15895.html

Panel Brand : ORTUSTECH
Panel Model : COM48T4Mxxxxx
Panel Size : 4.8 inch
Resolution : 1920x1080
Display Colors : 16.7M (8-bit)
Signal Interface : LVDS (2 ch, 8-bit)
Input Voltage : 5.0V (Typ.)

Trying to buy a couple, will keep you all posted

Post by **TheRealistWord** » Sun Sep 16, 2012 12:40 am

Wow, nice find! Insanely huge PPI of 458!!

It's something, to think these panels were announced nearly 2 years ago and only now they're beginning to ship them. But, couple questions though - did you actually find a supplier? Because the link you shared doesn't seem to point to anyone selling the panel. Also, with the 5x lens, wouldn't the screen be a bit too small? I've been using my cell phone's display as the screen for now (tried it both with the 5x and 7x lens), and it's pretty impressive, but of course it's way too small (4.1"). I have no idea if 4.8" would work or not for a single screen, unless you use a separate panel for each eye? I have no clue

(I'm bad at measurements usually, lol). Keep us posted!

Post by **Dycus** » Sun Sep 16, 2012 12:57 am

Too small without some crazy optics... but that's a pretty sweet screen.

Post by **MrGreen** » Sun Sep 16, 2012 9:11 am

What would be the perfect screen size Dycus?

Post by **Chriky** » Sun Sep 16, 2012 10:02 am

With the current style of optics, the limit for 100% overlap is about 13cm horizontal (2x the lens spacing). You could add on some more either side but it would only be for the eye on that side (this actually reflects normal human vision). I would say 7 inches would be the maximum.

Post by **zacherynuk** » Sun Sep 16, 2012 12:14 pm

rfurlan wrote:So this exists now:
http://www.panelook.com/COM48T4Mxxxxx_O ... 15895.html

Panel Brand : ORTUSTECH
Panel Model : COM48T4Mxxxxx
Panel Size : 4.8 inch
Resolution : 1920x1080
Display Colors : 16.7M (8-bit)
Signal Interface : LVDS (2 ch, 8-bit)
Input Voltage : 5.0V (Typ.)

Trying to buy a couple, will keep you all posted

I asked ortus directly some time ago when they started shipping samples, but nothing. Where have you had joy?

Post by **Dycus** » Sun Sep 16, 2012 2:13 pm

The screen size is limited by the magnification. We could use a 4.8" screen if we had higher magnification lenses. Problem with that is then the exit pupil gets smaller and you get more distortion. Plus, there aren't even lenses like that yet.

The perfect screen size would be of an aspect ratio they don't mass produce yet. At 16:9, though, 7" is great.

Post by **zacherynuk** » Sun Sep 16, 2012 3:21 pm

Dycus wrote:The screen size is limited by the magnification. We could use a 4.8" screen if we had higher magnification lenses. Problem with that is then the exit pupil gets smaller and you get more distortion. Plus, there aren't even lenses like that yet.

The perfect screen size would be of an aspect ratio they don't mass produce yet. At 16:9, though, 7" is great.

Getting slightly OT, but:
Using single lens / current Rift design; perhaps. However, my view, building LEEP style plastics optics for anything UNDER 5.8" is easy enough - down to about 1.5" - aiming for an exit pupil of 30mm+
The reason the 5.8's are so good is that the IPD is already near perfect average.
A single 4.8" screen would have an almost unusable IPD of about 5.3cm (vs current 6.4cm) 2 screens of 4.8", in portrait, bring a side by side IPD down to a workable minimum 5.9cm.

(As I already have a head big enough for two side by side current 5.8 screen, for me this is moot - and the aspect ration detracts from the immersion)
However, the reason I wanted these screens is that they are the first small HD screens to do 120hz - this means I could build 3 in portrait running Nvidia surround in 3D with shutter glasses built into the helmet design. I made a 3 portrait mono rig with the current screens but it was A) bulky and B) Not 3D (though 30hz 3D possible it stinks)

Also, I would say a 7" screen is too big for comfortable side by side, unless you have a gargantuan planetoid of a head. Natural IPD of 7" diagonal screen is 7.7cm

Source: http://en.wikipedia.org/wiki/Pupillary_distance & http://www.prinds.com/tools/screenDimensions.htm