You're going to enjoy the adventure Alex! 3D printing is soooo addicting. I've been printing since Sept. and all I can say is you are only limited by your imagination and patience. 3D printing takes time and perseverance. Printing a single
mod I designed takes 4 hrs for both the mod body and battery cover, and of course if anything goes wrong or your printer calibration is not correct it's time to start over. Calibration is time consuming, and that's especially true for a Delta printer like yours since you will be recalibrating every month or so... just part of the experience. But when you have it calibrated correctly it will print to very fine tolerances.
I would encourage you to think about using PLA instead of ABS, at least to start for a couple of reasons. ABS has an tendency to warp during printing and the smallest of influences can really affect the print negatively, like drafty conditions in the room (if you don't have a printer enclosure) or a hot end cooling fan that let just a little airflow on the print surface. It is just plain harder to get good prints with. Not impossible, I print very well with ABS, but it took quite a bit of time to get rid of the variables that were badly affecting the print. But the biggest reason is that I found it's just too flexible a material for boxes and mods with walls thinner that 4mm, which really makes a box much bigger than I like. In contrast, PLA is dead easy to print with and a 2mm wall thickness gives the same strength as ABS with 4 to 5mm thickness. I just find PLA a better suited material for box mods overall. At the very least, it is much easier to start printing with so you don't have to worry about material issues while figuring out all the other complications of 3D printing like flow rates, extruder feed rates, XYZ axis calibrations, heat bed temps, and a thousand other things. Then when the printer is sorted and producing good prints start working with ABS to see how that works for you.
When you get everything setup and working and you think you're ready for final calibration... all the initial calibration is done and you are generally happy with your printing, here is a link to the objects on Thiniverse that was used for the 2015 printer shootout from Make magazine. Printing these will stress your printer and show exactly where you might need some fine tuning to get really good prints. Well worth the free download and time spent printing.
Make: 2015 3D Printer Shoot Out Test Models by MAKE - Thingiverse
Get a good free modeling program if you don't have one already. While there are many good programs available, if you haven't done much 3D design work pick a program that has lots of video tutorials. 2 that come to mind are Sketchup and 123D Design. I have used both and find 123D Design by Autodesk the best for me. And the number of tutorials available both at Autodesk's site and on YouTube a surprising bonus. I'm going to be switching to SolidWorks soon since they have a very reasonably priced license for Vets, but otherwise it's a very expensive design suite. But arguably one of the best available.
And of course, join
3D Print Forum for Artists, Designers, Hackers and Enthusiasts where you will find lots of help for your specific printer.
