I have one of these printers, an SD card was included and I thought GREAT, it comes with the files.. well no.. its blank.. it came with nothing but the parts. Lucky after a few HOURS fiddling and searching youtube i was able to get it up and running my first night.
I am not sure what you mean by "parameterize"?
I did a few things with mine. First I downloaded new firmware. It replaced the default stuff that came on it "that was kinda nice" but let me change all the settings that I needed to get to. like Steps per mm for each motor, Axis direction and so on.
One major problem I had was Z axis skip, no not gear skip, belt skip! Since the Z axis is belt driven it is VITAL to slow it down alot. i mean to a crawl.. have the belt tight, and do not let it move fast. nothing like a skip mid build.. Z axis has no need to be fast on a build.
OK other build problem. The X and Y axis have no real way to keep the belt tense. I purchased a few belt tensioner sprints off ebay, one on X one on Y and you are set. Make sure they so not disrupt movement ie. they are not going to collide with anything when they move.
I use CURA for slicing. it is fantastic software, and free of course.
Making your own models is a bit of a different subject, there are plenty of free 3d software out that that do a great job. I use solidworks.. which is certainly not free but a perk of my job
Modifications.. ok here is where i get pissed off. Two thankfully non critical parts showed up warped. Failed prints that i was sent anyway, that is bad enough, but I was refused access to any of the files required to print my own printer parts. As I have needed them I have started to model a few myself, it is not a big priority right now but I will likely model out the entire printer and make the files available, if I ever do it.
I have long experience with 3D printers before this, and well, the filament i received with the printer was absolutely worthless. I have purchased a few spools from companies in the US off eBay and been pleased. who knows where these spools originate. but once i find a reliable eBay supplier I stick with them.
That is about it, Once a print gets started it goes well. Glue sticks are a great help. with PLA i generally run 210 hotend, 60 bed.
Slicer - CURA - [
ultimaker.com]
Inteface - Pronter - [
www.pronterface.com]