My first real 3D print

29th of Nov, 2017

About a month ago, I bought a 2nd hand Prusa i3 3D printer to, among other things, print parts for my Mini Talon. I thought it'd be a good idea to go 2nd> hand, as I wasn't sure how much use it would get and how I would get on with it, and thanks to eBay I got a cracking deal on this printer. I basically got 13 reels (8 brand new, mostly 1Kg) of filament with the printer, which easily cost more than the amount I paid for the printer and the travel to pick it up. It's taken me a while to do my first print, firstly because I like to research things and make sure I sort of know what I'm doing, but also because I had an issue with thermal runaway. I'm printing in a pretty cold room, and as soon as the fan kicked in for the 2nd layer, problems would occur and prints would be aborted. It's a safety feature, so I can't complain too much. The solution was simple though. The E3D V6 comes with a little silicon cover, with that on I've not had a single problem.

So for my first print, other than test pieces to check bed level, I decided to print the flight controller holder for my Reptile S800. This is a part I drew in Autodesk Fusion 360. Its purpose is to hold the PDB, FC, GPS, and OLED screen. I wanted to keep space near the cutaways for cables and airflow, especially to the ESC, I also wanted it to fit in the bay without any mods to the bay it's self.

The part it's self printed out very nicely. I printed using PLA with a layer height of 0.20, bed temperature of 50°C (7-°C for 1st layer), nozzle temperature of 210°C (215°C for first layer), and with 10% honeycomb infill. As the part was printing, I thought the roof of the OLED holder part may sag, but there were no such problems. As you can see, it fits well, the stock lid also fits with no modifications. The threads require chasing with a tap, but even they aren't bad at all. There are a few alterations to make, mainly to the OLED holder, but I'm sure version 1.1 will be spot on.