DLP DIY 3D Printer? Any suggestion? Which open source is better?

Calibrating Kossel Mini 800 3D Printer Tuning & trouble shooting!

Droping down what I did to fine tune my kossel & problem that I bump to

Printrun Best software to calibrating your 3D printer, because it's simple and straight forward
https://github.com/kliment/Printrun | http://koti.kapsi.fi/~kliment/printrun/

Adjust A4988 driver current

All the driver voltage should be the same and not too high, if so the motor will get very hot (over heated), for me I adjust to around 0.35V, after that my occasionally mis-stepping issue have been solved

http://reprap.org/wiki/Pololu_stepper_driver_board

Heat bed not heat up correctly

Test and set the correct heated bed pid, you may wanna tune your hotend as well

http://reprap.org/wiki/PID_Tuning

Hotend send  "M303 E0 S200 C8"
Heated bed send  "M303 E-1 S60 C8"

And change the Kp, Ki and Kd result to your firmware configuration.h

Calibrating extruder correct distance

If your printer is extruding too much or less, your printout can become a mess. So mark your filament with pen or tape, measure the distance and adjust the fourth number in the "DEFAULT_AXIS_STEPS_PER_UNIT" in configuration.h up or down accordingly

further reading
http://www.dummies.com/how-to/content/how-to-calibrate-the-extruder-distance-on-your-3d-.html

Leveling your print-bed

Manual leveling position

G1 Z5 x-74 y-43

G1 z5 x74 y-43

G1 z5 x0 y85

The most useful and detail information I found so far

http://builda3dprinter.eu/build-manuals/kossel_mini_build_manual/calibration-2
https://docs.google.com/document/d/1wYwPmP2ZbZWeXFcjtXCqGfVvm05ZUVkkGT7-EKEv8fc/pub
http://minow.blogspot.co.uk/
https://www.mixshop.com/docs/manual/kossel/common_variables
http://reprap.org/wiki/Calibration

Trouble Shooting

Visiting the following site for solutions:
http://reprap.org/wiki/Print_Troubleshooting_Pictorial_Guide
http://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide

3D Printing - The T-Rex Skull

http://www.thingiverse.com/thing:308335

3D Printing - Iron Man Helmet (one piece)

Leaning how use slicing programs, start from Slic3r (within Repetier-Host), Cura (from Ultimaker) & finally the Simplify3D it's the best so far, made some improvement. Still alot to learn!

Download from thingiverse

http://www.thingiverse.com/thing:360747

I scale down to 0.1


Machine: Kossel K800 delta 3D printer

Kossel Mini K800 Delta 3D Printer

Start building the Mini Kossel 3D printer because it's simplicity & low cost, gathering parts again. Finally I bought a Kossel mini based K800 kit from the supplier. Print quality is better than I expected, I'll record a video when I got more experience on the printer & the slicer. Good day!

http://reprap.org/wiki/Kossel

Bill of Materials

 Linear motion

• 3 x 400mm linear rail and carriage
• 3 x 1,164mm GT2 timing belt closed loop ( 2mm pitch and 6mm width )
• 6 x F623ZZ flanged bearing ( 3 x 10 x 4mm )
• 3 x 16T GT2 drive pulley ( 16 teeth and 2mm pitch )
• 3 x NEMA17 stepper motor

Diagonal push rods

• 12 x Traxxas 5347 rod end
• 12 x M4x20mm grub set screw
• 6 x 180mm carbon fiber tube (OD = 6, ID = 4mm)

Optional (Magnetic Joints Upgrade)

• 12 x M4 threaded steel ball rod end (For magnetic ball joint system)
• 6 x 180mm 3K woven carbon fiber tube (OD = 6, ID = 4mm)

Calibration

The most useful and detail information I found so far

• http://builda3dprinter.eu/build-manuals/kossel_mini_build_manual/calibration-2
• https://docs.google.com/document/d/1wYwPmP2ZbZWeXFcjtXCqGfVvm05ZUVkkGT7-EKEv8fc/pub
• http://minow.blogspot.co.uk/
• https://www.mixshop.com/docs/manual/kossel/common_variables
• http://reprap.org/wiki/Calibration

Slicer program (Slicing Model)

• Slic3r (Repetier-Host) - FREE
• Cura (Ultimaker) - FREE
• KISSlicer - FREE & Paid
• Simplify3D - Paid - All-In-One program, cost $149 but it's a great program, the best I tired so far, recommended! [Tutorial 1, 2, 3]

3D Model (Things to print)

• www.thingiverse.com - MakerBot
• www.youmagine.com - Ultimaker
• www.grabcad.com - Mechanical oriented
• www.nasa3d.arc.nasa.gov/models/printable - NASA