A-10 Warthog 3D Print Kitcard and Cura's Filament Change
Channel: Timmy Tatters
Date: 19/05/2022

Interesting Fact About Warthogs, Males will travel in solitude. Really they stand out in the Animal Kingdom by traveling alone. Oh wait, wrong Warthog.

The A-10 Warthog Kitcard is a fun model based on the tough as nails airplane. The flying contraption is popularized in many Science Fiction films for its vast usefulness and capabilities. The thing can carry up to 10,000 gallons of air fuel. Enough of that, let's focus back on the model itself. Did we mention it has great maneuverability at a lower airspeed than most other conceptualized aircrafts? It really is a Hog.
The artist of the model suggests for a 3D Printer Enthusiast to use glue. Nah, we're going to forego that recommendation and cut straight to the print and final assembly. It has been too long since TR ONION has made a Kitcard. Why not do a Kitcard in the month of May? We think its a great idea, and most of the time we have good ideas to share. It'll be a bulletproof print using Purple PETG, -A blazing 30 mm attack maneuverability model.

Changing Filament in Cura G-Slicer:
Go to EXTENSIONS, POST PROCESSING and MODIFY G-CODE. 
Click on the Button, ADD A SCRIPT, you can play with all the settings that best fit your needs. For our print, we selected, FILAMENT CHANGE.
For the first layer to be a Green PETG, we modified the G-Code to Change Filament after the 2nd LAYER. What this will do is print the first layer of the model, stop, home to the coordinates we selected - X: 0.0, Y: 0.0, Z: 45.0 mm.
In other words, we asked our hot end to stop printing at the first layer change, or the 2nd layer, or print the first/bottom layer of the print and stop before progressing any further. Hot End will home at it's x and y default, 0.0 mm area. Rather than have your Hot End hover above the unfinished print. The Filament retraction for our project is set at 2.0 mm, rather than the default Initial retraction at 30.0 for the hot end's direct drive. 
LAYER RETRACTION DISTANCE is worded funny, what it really means, the printer's Bowden or Direct Drive E-Stepper Motor will push the default setting of 300.0 mm of filament through the Hot End for a cleaner pallet and ready for the new filament to be dispensed into the Hot End. We recommend to use the Change of Filament's 'Print / Pause' feature to your advantage and use the Printer's controls to dispose of the prior filament and have the next batch of filament extruded through the hot end for a cleaner change of color scheme. Firmware 'RETRACTION METHOD.'

Cura 5.0 Beta Settings:
Layer Height 0.16 mm or the Resolution of the Final Print, Wal Thickness 1.2 mm, Optimize Wall Printing Order is set to INSIDE To OUTSIDE, Minimal Wall Line Width, Minimum Odd Wall Line Width is 0.2 mm, Add Middle Line Threshold at 50.0%, Minimum Feature Size 0.1 mm, Minimum Thin Wall Line Width is 0.2 mm, Z-Seam Alignment set to 'SHARPEST CORNER' and 'Smart Hiding,' Top Surface Skin Layers is 2, Top/Bottom Thickness 0.68 mm, Top/Bottom Pattern is set to 'Lines,' 
Monotonic Top/Bottom Order, btw we love this FEATURE! Thanks Ulti!
Infill Density is 10.0% - The Model's Preview in the G-Slicer appears to be a solid and will be printed without Infill.
Print Speed is locked at 35.00 millimeter per second.
Retraction is Enabled, Retraction at layer Change is Disabled
Combing is enabled.
Build Plate Adhesion Type is, 'Skirt.'

Hardware: MK8 Style Heat Block Copper Plate with a Hex Screw Thermistor rated for high temperatures. 24v 40w Heater Cartridge with a light, very very minimal, paste of Boron Nitrate Paste to help heat conductivity. We're banging our tech heads against the wall to better tune our Hot End. A few overtime hours were put into this print to really knock it out of the park. We wouldn't recommend a beginner to immediately jump into our hardware list. We will recommend for any 3D Printing Enthusiast to read all the honest articles on what you potentially could do. 

There is no one stopping the hobbyist to be a hobbyist, except for themselves. Always see the light at the end of the tunnel - any paperweight can be remade.
Some noticeable bugs in the Cura 5.0 -If switching between PLA+ to PETG Profiles, and the window was closed and reopened for final G-Slice Editing on the model. Make sure your profile is still on PETG and the temperature with the print speed are automatically updated. Otherwise Cura 5.0 window will return to the previous filament profile, in our case, PLA. Whoops, we were wondering why our files had obscured temperatures on the PETG files. For Ultimaker Cura G-Slice program in general, best practice we found is to close the program before transferring file to the printer. We had weird bugs in our G-Slice Code if we did not stick to this routine.

THING - 5354631
Credits to the Artist: https://www.thingiverse.com/thing:5354631
TR-MTH Radio, 3D Music Station All rights belong to the artist and musicians. Images Generated are by TR ONION OPERATING SYSTEM. Common Creative Attributions and Licenses. Purple and Green PETG.