I recently saw this picture on Facebook – amazing 3D printing results from the Creality Ender 3 using the Ultimaker Cura slicer with the “Creawesome Mod”:
This photo shows a “regular” Cura 4.0 print on the left and a Creawesome one on the right. Image courtesy of Thirl Thompson from the Creality Ender-3 3d printer user group on Facebook. Awesome indeed. Naturally I’d like to see the same results from my prints, but there were no Linux instructions yet, so I set out to figure out how to do this.Continue reading
AppImages and mods, wut?
The Cura downloads you can get for Linux right from Ultimaker are AppImages. Basically bundles of software that can run on their own without having to install anything else. Super easy, just download the file, set it to executable, and run it. But how does the Creawesome mod install?
The Creawesome mod is a zip file with a folder in it called “resources.” I just needed to figure out where to put it. I tried putting it in
~/.config/cura/4.0 on my Ubuntu system but that didn’t do anything. The clue that it is working, according to this video, is that I should see a Creawesome mod splash screen.
But I wasn’t having any luck.
Deconstructing the AppImage
Since the AppImage is a bundle, I thought that maybe they need to go inside of it. The AppImages delivered from Ultimaker are “version 1” app images. Those types of AppImages can be mounted like a filesystem for further inspection. I used these commands:
$ mkdir /tmp/cura_mnt $ sudo mount path/to/Ultimaker_Cura-4.0.0.AppImage /tmp/cura_mnt mount: /tmp/cura_mnt: WARNING: device write-protected, mounted read-only.
The Cura 4.0 AppImage is now mounted at
/tmp/cura_mnt and we can look at the contents. It has a “resources” directory! (bottom)
$ ls /tmp/cura_mnt/usr/bin cura libgfortran.so.3 libQt5Qml.so.5 libQt5Xml.so.5 CuraEngine libgomp.so.1 libQt5QuickControls2.so.5 libselinux.so.1 cura.sh libopenblas.so.0 libQt5QuickParticles.so.5 libssl.so lib libpng12.so.0 libQt5Quick.so.5 libssl.so.10 libcrypto.so libpython3.5.so.1.0 libQt5QuickTemplates2.so.5 libxcb-xfixes.so.0 libcrypto.so.10 libQt5Charts.so.5 libQt5QuickTest.so.5 libXi.so.6 libfontconfig.so.1 libQt5Core.so.5 libQt5RemoteObjects.so.5 openssl.cnf libfreetype.so.6 libQt5DataVisualization.so.5 libQt5Sql.so.5 plugins libgeos_c.so libQt5DBus.so.5 libQt5Svg.so.5 qml libgeos_c.so.1 libQt5Gui.so.5 libQt5Test.so.5 qt libgeos.so libQt5Network.so.5 libQt5Widgets.so.5 resources libgeos.so.3.6.2 libQt5OpenGL.so.5 libQt5XcbQpa.so.5
But, we can’t just overwrite that folder and unmount the image. The image itself is mounted read-only. So I made a full copy of the directory and then unmounted the original AppImage.
$ cd /tmp $ cp -a cura_mnt cura_image $ sudo umount cura_mnt
Repackaging the AppImage with the Creawesome mod
I removed the resources directory so I could copy in the Creawesome mod resources directory.
$ rm -rf cura_image/usr/bin/resources $ mv ~/Downloads/CreawsomeMod-0.2/resources cura_image/usr/bin/
After some research I found there’s an easy way to package this directory back up into a new AppImage. There’s a program called
appimagetool that can help. I downloaded the
appimagetool-x86_64.AppImage file from their github release page. Fittingly, it’s also an AppImage, and will need to be set to executable.
appimagetool to package it back up:
$ appimagetool-x86_64.AppImage -v /tmp/cura_image
This should create an updated AppImage with the Creawesome mod called
Cura-x86_64.AppImage. I renamed mine to
Ultimaker_Cura-Creawesome-4.0-x86_64.AppImage and put it right next to my original
Ultimaker_Cura-4.0.0.AppImage file in case I need to fall back to the “vanilla” version.
And here is the x86_64 AppImage for Cura 4.0 with the Creawesome mod pre-installed. I hope this helps – let me know in the comments if you have any issues or had to do things differently.
When I was looking to get my daughter her first RC car, I eyed the Dromida Wasteland series of vehicles. That line is discontinued, but you can still occasionally find them at local hobby shops or eBay.
After researching them, I found out they have a combined ESC & receiver which would not easily allow me to replace the transmitter & receiver for a left handed version.
So when I saw a Dromida Wasteland truck body show up on eBay, I snagged it. The Dromida Wasteland and LaTrax Prerunner are both 1/18 scale and have similar wheelbases – 165mm and 179mm respectively. Being the same scale means the bodies should be proportional and more importantly swappable, albeit with some tweaks. The 14mm difference in wheelbase is about 1/2 inch, but I figured I could kitbash these two into one to make it work.Continue reading
We’re launching a new shop with some 3D printed RC products for sale. I got a 3D printer earlier this year because there’s always been parts I wanted (mostly RC related) that I would have to ask my cousin to print for me.
Then came wanting parts that no one else had made yet, so I spent over 10 hours watching youtube videos on how to use Fusion 360 to design my own parts.
The first thing on my list was a bumper mount for the Slash to hold a flag. Sort of the way monster trucks do:Continue reading
Let’s customize a jump quick-and-easy with a stencil and some spray paint.
One of the best things about off-road RC vehicles is jumping. And when you’re just bashing in the street or the yard, jumps are tons of fun. One of the best accessories I’ve added to our Slash fleet are these 1080 jumps. They’re best found at garage sales or craigslist – often for half the price of new.Continue reading