OctoFarm is a requirement if you run multiple printers

I found a YouTube video about this application about a month ago and last week I tried installing it on docker but it didn't go so well. I read that it needed a 64 bit is to run mongo DB and everything I had seen said it didn't run on a raspberry pi. I looked again today and found an article on installing 64 bit Ubuntu on a raspberry pi using the new raspberry pi imager application.

So I grabbed a pi 4 and installed Ubuntu. It took me two tries to get vnc working but then I went through the steps for installing OctoFarm in a ‘production’ environment and got it up and running. The only issue I had was that the controls weren't working and then I found another YouTube video describing that you have to enable CORS on octoprint then everything started working.

Definitely check it out if you run octoprint and multiple printers.

Awesome change for Pronterface

I've been running my MendelMax called the Bumblebee II using a Raspberry Pi 512 lately.  It runs the printer great once I commented out the visualization display.  The one issue I was having is that when it loaded the gcode file, apparently it was still doing some processing to estimate how long it would take to run and the dimensions of the print.

While that is a nice feature to have, there were two HUGE drawbacks to this on a small system like the Pi.  The first was it would take a while to load up a gcode file to print, and if it was too large it would run out of memory.  

So I dug into pronterface.py tonight and I found the call to do the previsualization when it loads a file.  A simple comment out of this line and now my GCode files load instantly into pronterface, and I can print any size file my printer can handle.  I need to make a minor change though and display a message that it's read the file and display the filename in the console.