Any individual thread of plastic must (with very few exceptions) have plastic underneath to hold it in place. Molten plastic sags, slumps, and is stretchy. When choosing parts to print, especially without support material, you must pay special attention to the overhangs of the part. Nothing I'm saying after this is specific to the M2, but rather FDM-style printing (which is any printer you'll get for under $2000). There may be some fundamental misunderstandings about the technology, as well as a few miscalibrated settings at play here. Tried the fast, medium and best quality but issues everywhere. It s the only thing i've gotten to come out that was semi-decent. I got a tiny stool to print out great from a website. My dreams are dashed If anyone is wondering if this printer is ready for the average consumer, i'd have to say 'no, but i wish it was'.
I've adjusted the temp a few degrees at a time trying to find the sweet spot but it seems to change in the middle of the print. Finally a simple clip art shaped heart just to prove it works, too little heat it splits into layers, too much it burns the table film (yellowish stuff). Printing it flat against the machine was impossible, I tried to standing it up but it build millions if feet which encased the piece in hard plastic.
I kept simplifying a small heart shape i wanted to put a tiny light inside of. The bottom only, it seems the top was too complicated to hold up. I did get half of a raspberry pi case printed. Here's a couple of photos of hours and hours and hours of hoping and tweaking and holding my mouth right and buying extra software. I waited for the plate to be cold to the touch but the printed piece broken while i was trying to pry it up from the table. Once i had the leg done, looked beautiful but it melted to the plate. I've given up on trying to print out my fancy robot legs and just tried to print flat plain legs but even those have all kinds of issues that i can't really use any of them and it seems impossible to get the same result to come out three times in a row. Even simple shapes like a flat heart are just too much for this machine to output. I've rechecked and adjusted my temperature controls for the nozzle and the plate. I've re-leveled the board plate and the pins a couple of times. I've been at it for a couple of days now. You can kind of see this in the pictures (the extruder is on the side I am calling "right").So bummed to say this but my new M2 machine is not something that's ready for prime time. When I took these, I noticed the gold-brown nut on the rod on the right side, the last thing on the rod before it goes below the bed, is not buried in the black plastic part above it the way it is on the left side.
<-echo: M205 S0.00 T0.00 B20000 X17.00 Z0.40 E5.00Īnd some pictures of the z-axis rods at the base of the printer. <-echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s), Z=maximum Z jerk (mm/s), E=maximum E jerk (mm/s) <-echo:Acceleration: S=acceleration, T=retract acceleration So, again, the problem is when it finishes G29, it doesn't raise the Z axis enough if at all, instead dragging the nozzle across the glass to the start of the print, and it starts trying to print that way, still dragging, unless I flip the power switch. Alright, sorry for the long delay to reply, life outside 3D printing caught up to me.
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