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HI,
LED are working like this:
You will need a driver for LED with constant Ampere. Mean the Ampere will never change, but the driver will use the voltage to adjust and come to the total watt needed for the LED.
If your Led specification is 3.4Volts / 800mA.
You need to find a drive for 800mA. the voltage will be according to the number of LED place in SERIAL.
if you use 10 LED, then your driver must be 800mA and voltage over 34 volts.
if you use 20 LED, then the driver must be 800mA and voltage over 68 volts.
If you place too many LED, the driver will increase the voltage automatically, until reach the 800mA, if it is protected, then it will shut down, else it will burn.
I have try led array with big driver and 15 LED at 3W, also install lenses to concentrate the spot light, the problem is center of LED is very bright, between them less, so the print have not good even curring. Solution is to move the LED array more fare from LCD screen but you lose power.
So i change back to SMD LED very compact, and mirror metal cone reflector like the KLD.
Wish it help.
HI Shahin,
On this version i got some problems with WIFI from RPI3 disconnecting after a cold restart.
The router is correct,
and every time i have to reconnect via cable to restart the wifi.
Also,
when uploading some zip with all the pictures from a slice,
if i make any change in resin setup then i launch the recreate button. the machine lose all the pictures.
I have to delete and re import the zip file.
Thanks for your help.
Hello
I tested your Marlin mod, and it work great out of the box.
i will be interested to see your machine setup and also some resin setup. If you can share that.
Thanks
Hi,
it was my rapberry who needed update.
then i enter you command line for simple install and everything work very good.
Nice work, my KLD no need computer anymore.
Hi
That's what i was looking for.
I already have the sreen and input the .tft file, OK
i done all te setup on the PI3, ok
but the screen only show "Connecting to ptinter..."
I have a KLD 1260 with board to control the hardware and UV,
I see there is a command line to enter for easy setup for the PI3. will it over write my Nanodlp config? 86 Mo.
What do you think happen?
Thanks
Hi
Me i use this function when i test new resin, generaly i will print smaller base at 2mm over 1 mm thick and then very narrow wall at 0.5mm width. If you look at the bottom of your picture, i have the same but 10 times smaller. After that i will place different timing from 4s to 12 s.
After generate the plate i will look at the layer display and count the number of pad per raw, this to adjust my timing setup again to get one timing per raw. In clear, i have 6 pads per raw, so i will write the timing like this 4,4,4,4,4,4,5,5,5,5,5,5,6,6,6,6,6,6,.......
Re generate and launch the print.
When finish, i will not clean my plate yet, and with the finger, will see what raw is the softer one, if it bent, move left or right.
This give me the target curing time for my prints. If my print have very large surfaces, i will increase 0.5 to 1 second my target. If my print have thin walls, thin supports, then i will stay at target time. If you want print proof faillures, then target plus 1 or 2s.
Remember, soft curing will give you print not stable, so deformed print. hard curring give you good print and stable. Over cure will break you vat faster.
And i forgot, the top print on your picture is used for calibration. Measure x and y.
Wish can help.
Hi Shahin
The flip is corrected adding the line "display_rotate=0x10000 " . Now everything working fine.
Still have projector calibration who HD pages still have 90 deg rotation clockwise displayed on the LCD.
Thanks.
Hi Shahin
Thanks for your fast answer.
For the X,Y size, i have found a Override X/Y Resolution at 65 on profile and it may be this the problem for my size. I will try soon to see if fixed.
For the Config.txt i do not have any display_rotate (in raspi). but i have this setting under
hdmi_force_hotplug=1
#hdmi_ignore_edid=0xa5000080
disable_overscan=1
framebuffer_depth=24
gpu_mem=192
framebuffer_ignore_alpha=1
#start_x=1
hdmi_cvt=1440 2560 48
hdmi_group=2
hdmi_mode=87
hdmi_pixel_freq_limit=400000000
hvs_priority=0x32ff
max_framebuffer_width=1440
max_framebuffer_height=2560
framebuffer_width=1440
framebuffer_height=2560
config_hdmi_boost=4
#hdmi_timings=1440 0 16 16 64 2560 0 5 2 1 0 0 0 50 0 176947200 3
#hdmi_cvt 2560 1440 50
when i print with import PNG files, the display is correct on the machine screen, the width and height are in full screen with good size. Print is correct in size.
When i go in Projector calibration / full HD calibration the grid is rotated 90 deg.
When i use Nanodlp slicing, the display is ok in width and height full screen, only mirrored in X.
That's what i do not understand.
Hi everyone,
I am happy user of Nano DLP installed on my machine . But if have one problem and can t find solution.
My machine use raspberry pi3 with MK board. I have replace pointerface with muve3D firmeware And Photonic3D with NanoDLP build 1357.
Everything working fine when I import PNG slices from CW. Good prints.
But when I use the nanodlp slicer the parts are mirrored, x reduced 30% and y reduced 50%. Z ok.
I try to play with projector parameters, raspy config.txt. But no success.
Anyone have idea?
another bug is if I use the projector adjustment patterns they are rotated 90 deg.
Thanks for your help.
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