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I appreciate your feedback.
Very impressive list of projectors. Looks like you might have solved the problem.
Thank you.
bzb
I understand you have your 4K printer working.
Would you show your complete config.txt on the forum so I could copy and paste?
I appreciate your feedback.
Unfortunately, I have yet to find a control board that is known to directly support the 5.5" LCD screen used by the Sony Xperia Z5 Premium. The reason I want this specific LCD screen is that is has an amazing PPI of ~806 which translates to a pixel size of ~31.5 microns. A 5.5" build area is big enough for what I design and then print.
If anyone could describe how to use a larger LCD (or AMOLED) that would have close to that resolution, I could use one of dorbar's suggested boards. The MiiCraft 3D printer that I used had 56 micron resolution and it wasn't good enough. If anyone has any suggestions for even better resolution I would love to hear about it.
That's why I suggested a mobile app to let nanoDLP control a smartphone.
I have seen several of these control boards on the Alibaba sites. The problem is, I have not been able to find somebody who is willing to sell just 1 item. They say minimum order 1, but then you look at the shipping packaging and it shows they will ship 240 pieces minimum. They mention an engineering sample in just 1 week, but they want to set up a contract for monthly purchases of 240 minimum.
However, if I am wrong or somebody does find a source that will sell just 1 4K UHD LCD screen, 1 cable and 1 control board then please post it. I need it.
This is why I asked for a mobile app, because you can purchase the Sony Xperia Z5 Premium in the USA and at the moment it seems the only option.
Anybody else have information or ideas?
Shahin,
I will go back and look at Ionel Ciobanuc's HTML method again. Good to hear the HTML timing was okay. I'm back to rebuilding my 3D printer. I agree that modifying the phone itself would be a very painful experience.
If I remember right, connecting to a smartphone gives access to technical info, such as display size and resolution, which would really help with configuring.
I still think a mobile app would be a good option as then nanoDLP could have all the direct control needed to handle the Android (and/or Apple) phone.
Thank you again for your help.
Shahin,
As always, thank you for the quick reply.
I remember the post by ionel.ciobanuc in March regarding using HTML and I know that the 3D printers I mentioned are SLOW, but they do work. I wondered if using a browser was the best method of connecting. I never saw any more responses to his idea. Maybe he could get into the discussion.
If I can get the phone to act as the display correctly then I can try to solve the timing problem. The phone can be disassembled to give access to the LCD screen. If done correctly, the built in backlight can be pried off very carefully and then a different backlight can be used. I've seen this done many, many times on YouTube. Naturally, the phone can't be reassembled to look like a phone, but everything will still be controlled by the phone. So a mobile APP tied directly into nanoDLP should really help with the project. It would allow a phone or tablet to be a display option.
How long would it take for your mobile APP to be available?
Shahin,
I've torn down my top-down 3D printer to replace components. I do not want to use my Acer 1500 projector ever again. I'm sick of the over curing problems, the heat, and the physical size. It worked fairly well, but never perfectly.
I want to try 4K UHD to get even better resolution. I haven't found any 4K UHD control boards (with cables and 5.5" 4K UHD LCD screen) that would use Raspberry Pi HDMI output to a specific MIPI-DSI interface.
After seeing demos of the ONO/(OLO) and the "myT3D" printer using smartphones and daylight resin, I wondered if this could be an option. I know that neither of these printers are even available or possibly ever will be. I could use a Sony Xperia Z5 Premium which has amazing 4K UHD graphics. I print small things, so nothing larger would be needed. The smartphone wouldn't be used to control things, just used as a projector display.
Is there anyway to redirect image output to something besides HDMI? Such as USB tethering, LAN tethering or Wi-Fi tethering. Or some other method that could handle a 4K UHD image?
If there is, which would you recommend? Any examples of coding, config.txt, etc.?
Would nanoDLP needed to be changed? I want to continue using nanoDLP. It is awesome.
Thank you.
I'm sure Shahin knows about this news but in case anybody else didn't see this:
http://www.3ders.org//articles/20161110 … arter.html
I am so glad so many people use the nanoDLP software. It is awesome. Thank you Shahin for all your hard work.
Shahin,
I downloaded the direct control PCB Eagle files and I have some questions.
Is the picture of the direct control PCB on top of your Raspberry Pi the rev1 version? It just doesn't look like the rev2 data. If it is the rev1 PCB could you also post a picture of the rev2 PCB?
Could somebody supply the complete Bill of Materials information, preferably as a .XYRS file? This would have the orientation information needed by a PCB manufacturer who will also populate it.
I plan to use this board with a dual output 5/24vdc power supply and my Raspberry Pi 3 for a top down design. Do you recommend using NEMA-17 or NEMA-23?
Any information would be appreciated.
Thank you.
Shahin,
Thanks again. I'll go back and read every forum entry again. Then I will get started. I really appreciate your help.
Shahin,
Thank you for the quick response.
Just confirming. Are you saying I can use the Arduino Mega without the control board?
The control board is only for "Direct Control"?
Direct Control is what I want so I will try putting together a control board.
Thanks again and a have a good, productive day.
Shahin,
Thank you and your team for nanoDLP. It is awesome.
I currently own a 1st generation bottom-up MiiCraft (Arduino Mega) and a 1st generation top-down LumiPocket Pro (Arduino Micro).
Do you know if anyone has been able to control either of these printers with nanoDLP?
I would prefer not to modify the LumiPocket Pro at this time and just run it with your much better software through the the existing Arduino board.
I need to repackage the MiiCraft (because of physical access and resin level control problems) and I would prefer to use Direct Control from Raspberry Pi 3.
Do you know of any available pHAT that could be used instead of your suggested control board? Soldering is not an option for me. Frankly, I would just like to purchase an equivalent assembled control board.
Eventually, I would like to try micro-stepping. What specific stepper motor would you recommend? With that determined, I could get the required stepper motor driver. I just need a base/exposure area approximately 10cm x 10cm.
I will appreciate any information you, your team, or any forum person could provide.
Thank you again.
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