Hello,
Does anyone use this projector? I wanted to know if I need to remove the color wheel? Has anyone changed the focal length on this unit?
Space...
InFocus 2104
- PacManFan
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Re: InFocus 2104
I used a 2104 on my prototype printer. I documented the process on my blog:
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Re: InFocus 2104
Thanks PacManFan.
I'll be referring to your experience often. Did you modify the lens focal length?
I'll be referring to your experience often. Did you modify the lens focal length?
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Re: InFocus 2104
I have the whole lens housing separated from the main unit. I'm just not sure how I would put a spacer in.
Do you have any photos?
They would be greatly appreciated.
Space......
EDIT:
So I got the focus/zoom assembly apart from the DLP chip housing. Now I see where you would put the spacer. Did you use 3mm arbitrarily? I was thinking 4mm or 5mm. Do you see a drawback to a spacer that big?
Also, you mentioned in your blog that you removed a 'suspicious' pane of glass that may be UV-resistant. I have 2 lenses and the angular mirror in the DLP housing. Was the lens you removed inside the DLP housing or elsewhere?
Thanks again for your help. Much appreciated.
Space....
Do you have any photos?
They would be greatly appreciated.
Space......
EDIT:
So I got the focus/zoom assembly apart from the DLP chip housing. Now I see where you would put the spacer. Did you use 3mm arbitrarily? I was thinking 4mm or 5mm. Do you see a drawback to a spacer that big?
Also, you mentioned in your blog that you removed a 'suspicious' pane of glass that may be UV-resistant. I have 2 lenses and the angular mirror in the DLP housing. Was the lens you removed inside the DLP housing or elsewhere?
Thanks again for your help. Much appreciated.
Space....
- miribota
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Re: InFocus 2104
I am currently putting together a printer on the 'cheap'. Just in case anyone comes across this post, I picked up an InFocus 2104 off of eBay for less than $40.
I put in 3mm spacers to adjust the focal length and broke off the color wheel. However I also had a question as to what glass to remove since I wasn't getting any curing with 30 second exposures. After removing the glass right in front of the bulb on the bulb assembly, I was getting over-curing with 8 second exposures.
If I were to do it again I'd try just using zoom lenses over the projector lens to adjust the focal length and remove the glass from the bulb assembly – Just to see if the projector would work without having to crack it open. It took me much longer than I would have thought to do the mod. I ended up striping the projector down to the DLP chip and cleaned the entire optical path since I had dust splotches showing up in the projected image.
I put in 3mm spacers to adjust the focal length and broke off the color wheel. However I also had a question as to what glass to remove since I wasn't getting any curing with 30 second exposures. After removing the glass right in front of the bulb on the bulb assembly, I was getting over-curing with 8 second exposures.
If I were to do it again I'd try just using zoom lenses over the projector lens to adjust the focal length and remove the glass from the bulb assembly – Just to see if the projector would work without having to crack it open. It took me much longer than I would have thought to do the mod. I ended up striping the projector down to the DLP chip and cleaned the entire optical path since I had dust splotches showing up in the projected image.