Comments on: DIY HD Projector How-To

By: taranfx

taranfx — Sat, 03 Oct 2009 20:32:04 +0000

Tha’s pretty comprehensive guide.
I referred to engadget and this one:
http://www.taranfx.com/blog/diy-build-cheap-1080p-hd-projector

Both combined together, I made one under $800. Will shoot pis and upload somewhere.

By: PKM

PKM — Thu, 23 Nov 2006 14:19:29 +0000

loopymind: I think you are imagining a worm gear drive to electrically move the focus head. while I agree it would be cool, it would be a lot more work to design and the whole enclosure would have to be designed with it in mind. it would also unnecessarily add to the complexity of the enclosure, when you can just as well move the lens mount by hand.
nice level of detail and ingenuity in this build (eg the slot-cut 1×2 LCD panel frame), i’ll be referring back to it once I get round to designing the enclosure for my own.

By: updatelee

updatelee — Wed, 22 Nov 2006 18:31:54 +0000

this is like a rocky movie, how many *parts* do we need ? lets get over the projector thing and move onto something else.

By: LoopyMind

LoopyMind — Wed, 22 Nov 2006 18:06:49 +0000

What I meant was something like you use in the CNC project to move the 'head' with the Dremel in it. doesn't have to be done with a stepping motor.. you'd probably need to make some gearing to make it more accurate when focusing depending in the size of the thread on the rod.

By: its-a-me_dewd

its-a-me_dewd — Wed, 22 Nov 2006 17:15:04 +0000

heh looks very professional. my HD projector is the classic tft-on-overheadprojector thingy

By: Mike

Mike — Wed, 22 Nov 2006 15:42:02 +0000

You jacka$$!

Sorry, had to get my rage out ;), this is the only reason I've been going through each day of posts for Engadget, and now you put up Part Five, the final chapter. But it's not. I mean come on? Six parts? Ugh.

Oh well, I'll go and sulk in my corner now.

By: LoopyMind

LoopyMind — Wed, 22 Nov 2006 14:44:15 +0000

To get the lens to focus AND at be ‘fixed’ at the same time, can’t you use a motorised setup for it? … I don’t know the name for it, but it’s basicly the same principle that’s used to close the clamp of a vise… would look better if you have a 3 way switch on the projector: Zoom in – Idle – Zoom out. instead of havinf to manualy slude it and fasten some screw…just a thought