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Greg Caldwell (Greg209)
63 followers -
My kids tell me I'm a nerd - and I suppose it's true :)
My kids tell me I'm a nerd - and I suppose it's true :)

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Having a look around I saw these 220x120 70W COB panel. Seem a little narrow for an iPad screen (198x148) but with a 45 degree beam it might cover it at the right distance.

Anyone had any experience of them - if regulated by CC/CV - using daylight resin of course. Tempting to try....

https://de.aliexpress.com/item/220X120mm-12V-70W-7000LM-COB-LED-Panel-Strip-Bulb-COB-Light-Lamp-Super-Bright-12V-For/32847379370.html

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Just wanted to say a BIG thanks to everyone in this group for the inspiration, info and help you've given. I've finally finished my iPad LCD printer and although there is a lot of calibrating & tweaking to do, I've had my first successful print from it - and a lot of failed ones ;)

It's home made, a bit rough-n-ready, made from a salvaged metal framed coffee table turned upside-down, wood, metal, acrylic and stuff. Uses and iPad LCD (Abusemark HDMI controller), RPi 2, 50-60W LED array, only two 3D printed parts (endstop holders) as I didn't have a 3D printer before.

Runs nanoDLP, has it's own 3.5in touch screen (not Nextion as I had the other type to hand) with custom interface with big buttons for control of nanoDLP also includes a NOIR Pi camera to monitor progress (also via the interface) and an I2C temp sensor to get an idea of temp inside the machine with all that LED glowiness.

Anyway it all does work - just needs to be more reproducible and hopefully quicker.

Thanks for the great community.
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09/05/2018
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Hi. First time posting but have been lurking for a good while whilst building my iPad LCD based daylight resin printer. It's all operational but as suspected and mentioned previously, the iPad LCD takes 2-3 mins to cure the resin ... not good ... so I'm going to have to add an LED array. I looked through the threads but haven't seen a conclusive answer to my question which is....

Does it matter where a solid state relay is located in relation to the buck converter - safety/efficiency/other. Looking at the attached pics, assuming they look ok (please let me know if you see problems), should (A) the SSR sit upstream of the buck convertor or (B) down-stream. I read somewhere indicating that the SSR should sit on the live feed from the PSU for safety but that's all I've seen.

Any suggestions, recommendations would be appreciated. Thanks for all the info in these threads so far.

Hardware specs: iPad LCD, Raspberry Pi 2, AbuseMark HDMI->iPad, 24V 15A PSU, 4 port USB step-down PSU, DRV8825, NEMA 17 motor, 2 x micro switch end-stops.

LED: 3W 460nm, Fwd voltage: 3.6-3.8V, Fwd current: 700mA
LED array: 4 in series (total 14.4V) and 2,3 or 4 rows in parallel (1400mA, 2100mA or 2800mA) - will need to test the brightness to get an idea of how many I can get away with.

Software: NanoDLP using direct GPIO (not ramps)
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22/12/2017
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Take a look at this video on YouTube:
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Finally released my latest #Openfl  / #haxe  game 'Window Cleaner' which is available FREE for mobiles/tablets on both iOS and Android.

iPad/iPhone : https://itunes.apple.com/gb/app/windowcleaner/id929962276
Android : https://play.google.com/store/apps/details?id=com.geepers.WindowCleaner

Website : http://geepersinteractive.co.uk/#!/windowcleaner

Take a look and please share.

Thnx
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Another update (1.0.4a) to the #Away3D   port to #OpenFL. This one now uses to the GPU to generate mip-maps and also exposed anisotropic filtering. This works currently on native (PC/Max/iOS/Android) and HTML. Currently you only get mip-mapping on flash and that's done in software rather than on the GPU.

Update via haxelib :
    haxelib update away3d
    haxelib update away3d-examples

Demo : http://bit.ly/a3doFLMipMap
All demos : http://bit.ly/away3dopenfl
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3D mouse interaction is now working on the #OpenFL port of #Away3D. Demo (Flash & HTML5) can be found at http://bit.ly/away3dopenfl

Also includes some other bug fixes.

Latest version 1.0.3-alpha is available from haxelib or from git : https://github.com/away3d/away3d-core-openfl
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Here is some recent work I've been involved with which I've added to my web site. 

The final project can be found at http://nike.teamheadwear.com/ and was developed by http://rendr.io using away3d. Through AwayStudio, I provided specialist Away3D development solutions for the project.

Full details can be found at http://geepersinteractive.co.uk/#/niketeamheadwear & http://awaystudios.com/projects/nike-team-headwear/
Team Nike/Paramount Head Gear
Team Nike/Paramount Head Gear
nike.teamheadwear.com
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