Episode 452: Raspberry Pi 4 Experimental Resin 3D Printer Updated!

No, haven't worked on that project since Part2
Exposure settings are dependent on the individual needs of each single resin and light source, so no information that Icould gather would apply to someone elses machine.
the light source is switched on and off inbetween layers at set times that are determined in the slicer.(curing time, curing delay/mask delay and so on)

Hi, any progress with the parameters for the exposure times?

I would like to know if you are continuosly printing or you have to switch on/off the exposure source and move the piece downwards for the resin to flow over it and keep the exposed surface correctly covered in liquid resin.

Good project !

Have you tried reaching out to the developers of nanoDLP so you can adjust the code to be more suitable to your requirements?

I am thinking you will get better print results with an even layer of resin to start each layer.

DAB

considered yes, but I focused on making it pritn at all first.

Good update Clem.

Have you considered using a small vibrator to disperse the fluid over the surface evenly?

DAB

Nobody apart from the devs knows how nanodlp does access the screen, the only options you have are HDMI1 and the disply connector, yo ucant configure it to use any other outputs, I had to trick it to even run on a Pi4 as it expects only one hdmi output and wont show anything if two are present and not previousli configured to use hdmi1. (on the pi3b+ its HDMI1 and the p4 had HDMI0 and HDMI1_>it defaults to 0 which is not recognized by nanodlp)

the software is not open source so i can look into it.

the display for sure is salvageable for other projects.

I Did a little bit of investigation and as long as it is a 40pin flat cable they all appear to be the same standard arrangement and the spec sheet did not list that specific detail but if the tft module Component of the Midas screen uses that flat 40 pin connector, then it’s possible to salvage the screen.

When the RPi is configured using the GPIO for the connection to the screen how does the OS see the screen?

if it is a connected display won’t the software still be able to see it?

Hehe, that was in the kit we got for the hacklikeheck  contest not sure if these are compatible though, as the flat cables of the displays vary so much.