nanoDLP

jeff

Member

Registered: 2016-02-23

Posts: 12

Is there a list of supported/compatible projectors?

I'd like to know what I can afford

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,541

Re: Is there a list of supported/compatible projectors?

You can use DLP based projectors with modifications.
Some models would not require modification if you do not need high resolution.

Acer, Viewsonic and Optima are probably the most used ones.

rtystgeeke

Member

Registered: 2016-04-20

Posts: 5

Re: Is there a list of supported/compatible projectors?

I've done mild testing with a Dell 2400MP, and have cured resin. I've heard that most DLP projectors over 3000 Lumens produce enough UV light to cure basic resins. The thing that's going to cost you is the resolution and the HDMI port. You can get cheap used VGA DLP projectors for under $100 on ebay, with no issues if you know what you are looking for. The tricky part with my projector was getting the HDMI to VGA converter to work with a Raspberry Pi. There are a bunch of tutorials but everyone's got a slightly different solution so you have to poke a config file till you get it right.

hansknec

Member

Registered: 2016-06-26

Posts: 2

Re: Is there a list of supported/compatible projectors?

Hope you don't mind if I jump in on this thread.  I'm building my own setup and I have the NanoDLP running and displaying on my projector.  It is a Sharp XR-30S that I got of Craigslist for $40.  It is a DLP projector, 2300 Lumens, but only has 800x600 native resolution.  It says it supports 720p, 1080i,1035i, etc.  It says in the spec "DATA MODES Max 1400x1050"  Not sure what that means.

I'm experimenting on the cheap to learn about SLA, and then I will upgrade to a high definition projector later.

Anyway, I'm at the point where I'm going to need to tear into the projector and remove the screw in the focus lens that lets me focus closer. I purchased the new 80x130mm build area flex vat from flexvats.com, so that is my working area.  I know that doesn't match the 4:3 native resolution of my projector, so I have to choose the limiting height and lose the width... if that makes sense.  So I will bring in my projector so the 600 pixel height matches the 80mm build plate area.  (or should I make it focus to a 60mm build plate area so pixels = um ?)  I would think the later makes all the math easier.

After I get this focused, there appears to be entry boxes on the nanoDLP setup page to which I would tell it the projector resolution width and height.  I have played with these numbers, and it doesn't appear to change the width or height of the calibration image display, but I guess that isn't the purpose.  What exactly do those inputs do?  Do they scale an incoming job?  Also can I load my own calibration images that will display from the calbration buttons of NanoDLP?  Clearly I'm not seeing your entire calibration image because the circle is cut off at the bottom, and I can't see the text to the right.

Thanks,  John

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,541

Re: Is there a list of supported/compatible projectors?

Only native resolution is important other ones are the resolution which it supports and scale them to native resolution.

You are right nanodlp does not scale calibration images, only supports full-hd displays. Resolution are used for slicing and rendering purpose, so they need to be correct.

hansknec

Member

Registered: 2016-06-26

Posts: 2

Re: Is there a list of supported/compatible projectors?

Shahin,  Just to be clear because I don't exactly understand your answer.  You are telling me to put 800 and 600 in the projector resolution width and height boxes in NanoDLP for my projector?  This is all I need to do for proper slicing and rendering at my projectors resolution?

Last edited by hansknec (2016-06-26 20:08:21)

Shahin

Administrator

Registered: 2016-02-17

Posts: 3,541

Re: Is there a list of supported/compatible projectors?

Yes, exactly