FDM printed SLA-Printer by TOS by Tinkering_On_Steroids

Last crawled date: 3 years, 1 month ago

Update 27.05.2018
Uploaded some video to YouTube with installation instructions for NanoDLPhttps://youtu.be/vNF5q_EgofE
Update 25.05.2018
Unfortunately detected a design flaw in the nanoDLP-Shield v 2.0 just now.
This prevents an connected stop key from working. If you use the shield with a model B design (Nextion UI) this will not affect you.
However, I updated the gerber files to v 2.1 to fix the issue.
You can find the updated gerber file in the file section of this thing.
An graphic that describes the issue and the fix was added to the galery.https://cdn.thingiverse.com/renders/e1/80/9d/2e/6d/2c8fb8921ea3c9bb4391917d14888a1e_preview_featured.JPG
Also added a PDF-file that contains the paper templates for the reflector mirror to the files section.
Update 04.05.2018
Uploaded some video to YouTube with build instructions for the UV-reflector
https://youtu.be/w0hcv9C8mI8
Update 02.05.2018
Uploaded some video to YouTube with a guideline about preparing the hdmi display to get used for an SLA-Printer.
The video covers the following topics:
type of display and components used
interconnection of components and display to raspberry pi
initial test of display
removal of backlight
application of protective glass
recovering/cleanup of adhesive layer of protective glass
https://youtu.be/zdHR6w-UEnI
Update 28.04.2018
uploaded some build instructions for the UV-LED-Box. You can find them at...https://youtu.be/Y7dDw7RyXCs
Update 26.04.2018
Slightly modified the nanoDLP-schield, so that screw terminals can be used for 12 v input and 12 v UV-LED.
Also created a video that shows how to solder the nanoDLP shield:https://youtu.be/Muqkb-LbFVw
Update 09.04.2018
Nextion is next! ;-)
The Nextion UI for nanoDLP is based upon Julien Delnatte (aka Tibus) "TouchScreen-For-NanoDLP" (credit where credit's due!)https://github.com/Tibus/TouchScreen-For-NanoDLP/blob/master/README.md
I added the follwing functions on top of his work:
show TCP/IP on home screen
show QR-Code of TCP/IP for comfortable smartphone access
added Shutdown button
added Reboot button
added Function to add Plates
added Function to delete Plates
replaced text buttons with graphical icons
https://youtu.be/yKJH2sTfvlE
Update 05.04.2018 (2):
Started working on an 'model B' which is basically the same, but replaces the frontpanel with 3.2 inch Nextion display. For this the core- and hull parts must be replaced with
tosla_32_nxt32core.stl
tosla_32_nxt32hull.stl
Update 05.04.2018:
Big thanks to my friend Mats Zander, who was so kind to create Gerber-files for the nanoDLP-shield. The ZIP-file is now available on the Thing-Files-Section of the thing. This allows to order a professional manufactured PCB by any online provider. Of course you still need to solder the components to it, but the task becomes much easier!
BTW: we added one more connector to support Nextion displays!
Update 12.03.2018:
Uploaded some video on YouTube to explain the nanodlp shield schematic:https://youtu.be/Wb5JIAkboEg
Update 19.02.2018:
While testing, it turned out that I underestimated the criticality of a good VAT design. While I liked the simplicity of the predecessing VAT design a lot, it turned out that it just wasn't able to maintain the tension of the foil over a longer period.
Today I uploaded a enhanced VAT design, consisting of 3 seperate 3D printed parts.
Build instructions for the new VAT can be found on YouTube:https://youtu.be/L0omLMDEv60
Update 03.02.2018:
Uploaded some build instructions for the printer body and z-axis to YouTube...https://youtu.be/DbIEzbua1AI
Update 01.02.2018:
Uploaded "tosla_31_uvdifusor.stl". Must be printed in transparent material and need to be installed inside the uv-reflector.
Update 29.01.2018:
First successful test today. Here is some video footage:https://youtu.be/10tiZy_Tpp8
Update 26.01.2018:
updated zslider to "tosla_31_zslider.stl"
(only "cosmetics" and less material, no functional change; older version can still be used)
Update 20.01.2018:
this is a major update that reflects first test results and fixes a lot of issues:
changed build plate to aluminium with hole-pattern to reduce suction effect, therefore 3D-printed part consists only of the handle, aluminium plate must be cutted, drilled separately.
shortened z-gantry to reduce leverage effect of forces to the z-axis.
moved z-stepper motor and smooth rods closer to vat, so z-gantry can be more shortened (see above)
used space that become availble by moving z-stepper motor to the front to add two additional aluminium bars (15x15 mm) to the back of the printer. This will add a lot of stability to the z-axis.
redesigned the VAT completely as it turned out that it was way to over-engineered in the first place
re-positioned z-endstops to fit in available spaces after re-positioning all the other stuff
...therefore the following 3D-printed parts have been updated to reflect all those changes:
updated the vat base to "tosla_28_vat.stl" (less parts/material, better assambly of foil)
updated the build plate to "tosla_29_zplate.stl"
updated the z-slider to "tosla_29_zslider.stl"
updated the z-top to "tosla_29_ztop.stl"
updated the z-shaft to "tosla_29_zshaft.stl"
updated the body-core to "tosla_29_bodycore.stl"
Update 14.01.2018:
updated the vat base to "tosla_26_vatbase.stl" to fix a minor issue.
updated the vat basin to "tosla_26_vatbasin.stl" to fix a minor issue.
Update 09.01.2018:
added missing uv-reflector-frame "tosla_25_uvreflector.stl"
updated the vat base to "tosla_25_vatbase.stl" to fix a minor issue.
updated the vat basin to "tosla_25_vatbasin.stl" to fix a minor issue.
Just a pre-release of the STL's for my FDM-printed SLA printer.
It's still work in progress, therefore no final/complete BOM and/or instructions for the moment.
There is a first video on YouTube that explains the z-gantry design:https://youtu.be/xuOsPoC8g8Q
BOM (work in progress):
Raspberry Pi Modell 3
5.5 inch lcd display 2560x1440,
HDMI-MIPI driver pcb compatible with 5.5 inch display
glass protector for 5.5 inch dispaly
DC converter 9a 4-40 V to 1,2-34 V, adjustable constant current (65x48x24mm)
FEP film (150 x 200 mm, 0.025 mm thick)
2x microswitch 3pin NO/NC/C, 1a 125 VAC (12,8x5.8x10mm)
12v 5a external power supply (barrel connector 2.1 ID, 5.5 OD)
Nema 17 stepper motor
flat HDMI cable with 90 degree type A connector 200 mm flat ribbon cable
UV-Light box:
4x 10 watt power UV-LED, 405nm wavelength
130 x 56 x 20 mm aluminium heatsink
40 x 40 x 10 mm 12v fan
thermal adhesive tape (as used for heatsink assamblies)
Model A only (1602 display):
1602 Serial LCD module with I2C interface
5mm LED
tactile switch 6x6x4,3, 4pin
hole matrix board 20 x 34 mm, double sided, 2.54 mm pitch/ 0.1 inch pitch
Model B only (Nextion display):
3.2 inch enhanced Nextion display
nanoDlp-shield:
voltage regulator pcb MP1584EN
DRV8825 stepper driver (or pin compatible)
mosfet IRFZ44N
some resistores (1x 100 Ohm, 4x 10k, 1x 100k)
capacitor 50v 100µF
some pinhead connectors (1x 2x20 female, 4x 1x2 female, 2x 1x8 female, 3x 1x4 male, 2x 1x3 male, 4x 1x2 male)
2x screw terminal (2pins, 5.08mm pitch)

nanodlp PCB (Gerber-files, see file-sections)

circular power switch, 19mm diameter, 250 VDC 6 Ampere
female barrel power connector (2.1 ID, 5.5 OD)
a bunch of m3 10mm screws
2x LM8LUU linear bearings
2x aluminium pipes 8mm OD x 350mm
2x aluminium bars 15x15mm x 350mm
1x leadscrew 8mm x 300mm
1x leadscrew nut 8mm
(...to be continued)
There will be some update with more details later.
Regards, TOS