First benchy and ctrlV test, small issues
I finished assembling my i3 MK3S+ (first printer, but have some experience), and, after an okay logo print and some Z live adjusting, I went ahead and printed a benchy, a gear bearing, and then sliced ctrlV's v3 test in PrusaSlicer as-instructed, just with no raft. All were on a satin sheet at the default 215/60 C. Here are a couple of pics of them to see what I still need to tweak. I can take more pics if needed.
The most noticeable issue is stringing, which is pretty rough on the ctrlV bridging tests. Bridging on the benchy's arches also seems messy overall. There is some slight corner bulging on the benchy, as well as a seam on the chimney, and the bearing has infill visible at one spot for some reason. It spun perfectly once loosened, though! Some vertical surfaces are messy, like the inside of the ctrlV dome, and its smallest gap test sealed at the top few layers while remaining open at the bottom. I think my first layer and z height are pretty solid, but the top layers seem to have issues with wiping.
Tried to make galleries of the images, but didn't get anything to show up.
Logo:
Benchy:
Gear bearing:
ctrlV v3:
Best Answer by Diem:
I would expect those gcodes to have been heavily tweaked to purpose - once the machine is running OK I would re-slice the files to whichever quality I required.
But forget the standard trinkets, it's time to start designing and printing your own stuff or at least downloading and slicing files from repositories.
I've owned a Prusa for over four years and I haven't yet got around to printing half the stuff on the sample SD card...
Cheerio,
Your first layer Z calibration is a fraction too low, too much squish.
Your belt tensions would benefit from fine tuning: Make your next print this:
https://www.prusaprinters.org/prints/46639-tension-meter-for-the-gt2-belts-of-i3-mk3s-or-prus
It MUST be printed in Prusament PETG or the spring tension will be wrong.
And your filament has absorbed atmosperic moisture and is now damp.
Having said that, I would rate your prints as good enough for the first month.
Every user builds their printer slightly differently and pre-built models are shaken up in transit so during the first few weeks of use the printer will run-in and settle its parts together; then you will have to go over the basic maintenance checks, lubricate and recalibrate. Even if you got everything dialled in perfectly today, it would all need re-doing.
Better to settle, temporarily, for a basic working printer and get some useful printing done, make your early mistakes, establish a routine and generally get used to the process. Then when you do your one month service you can take extra care knowing the new settings on your now stable printer are likely to last for several months.
RE: First benchy and ctrlV test, small issues
Alright, I'll work with this for now. Whenever I order some Prusament PETG, I'll print that tension meter.
Regarding filament absorbing moisture, that silver PLA roll was only out of its bag for maybe three days total by the time I printed the ctrlV test, and that was my latest print. Did it really get too damp that quickly?
Also, would tweaking Z calibration help with the blobs seen in the logo's/bearing's corners?
Regarding filament absorbing moisture, that silver PLA roll was only out of its bag for maybe three days total by the time I printed the ctrlV test, and that was my latest print. Did it really get too damp that quickly?
In the wrong climate a spool can go from perfectly dry to as damp as it gets within the duration of a single print. OK, PLA usually takes three days to a week even in poor weather so the answer is: quite possibly.
Thomas Sanladerer tests filament drying:
After a week exposed in a room with a dehumidifier running there was noticeable deterioration of PLA finish...
CNC Kitchen - skip to 7.40 for time to fully hydrate results. ( 5 days )
Also, would tweaking Z calibration help with the blobs seen in the logo's/bearing's corners?
No.
The logo and the benchy have opposite purposes. The logo is designed to be as forgiving and easy to print as possible, it's there to encourage a new user so that even a half-decent build produces something from which to aspire higher.
The benchy is actually a torture-test piece, intended to test a great many edge cases and to be used as a diagnostic when tweaking your printer's settings. A few years ago the ability to print a benchy at all would heve been hailed as a triumph.
Cheerio,
RE: First benchy and ctrlV test, small issues
Appreciate the information. I will dry out my filament and mess with it again.
The logo and the benchy have opposite purposes. The logo is designed to be as forgiving and easy to print as possible, it's there to encourage a new user so that even a half-decent build produces something from which to aspire higher.
The benchy is actually a torture-test piece, intended to test a great many edge cases and to be used as a diagnostic when tweaking your printer's settings. A few years ago the ability to print a benchy at all would heve been hailed as a triumph.
Sorry if I've misunderstood, but I was referring to the small indents/blobs from which the nozzle seemed to travel in the bearing and logo. See below.
I would expect those gcodes to have been heavily tweaked to purpose - once the machine is running OK I would re-slice the files to whichever quality I required.
But forget the standard trinkets, it's time to start designing and printing your own stuff or at least downloading and slicing files from repositories.
I've owned a Prusa for over four years and I haven't yet got around to printing half the stuff on the sample SD card...
Cheerio,