Olsson Ruby Nozzle 0.4mm - 1.75mm Filament

Great while it lasted. Be that as it may it only lasted a whole 2 weeks before the ruby chipped making it ussless. The thing is if I hadn't seen the chip come off in person I wouldn't have ever known it happened..... not worth the money if this is a common situation.

Nozel clogged on a regular basis. Had to run it 10 to 20 degrees hotter than normal or it would under extrude. Got tired of cleaning this nozel and went back to brass nozzle.

I ordered this nozzle specifically to print carbon fiber PLA. It worked great for a few months then one day my prints started turning out bad. After checking every thing I could think of I checked the nozzle. The ruby in the tip had chipped and would not print correctly anymore. My printer has a soft touch self leveling system so the nozzle did not get smashed into the bed and break. It seems to me the ruby may have had a flaw and the repeated heating and cooling caused it to crack. I reached out to Olson and had several email back and forth about the matter and final asked them for a replacement and since then they have stopped emailing me back. It was great while it lasted, but buyer beware.

I got very limited use out of this item. I installed it and printed some PLA and PETG. The tip jammed and then fractured when I attempted to use a 0.4mm accupuncture cleaning needle. I would avoid this product as the expense of the materials would seem to outweigh any benefit of the nozzle. It is a nice idea, but I don't think it is very practical.

I started using the ruby nozzles almost a year ago, I installed them on 4 of my printers (and I do print a lot for both home and work, I am an engineer) I used to change nozzles every month or so....I have not changed a single nozzle on any of my machines in almost a year with the ruby nozzle.....BUT!!!! I will admit I only use ESUN PLA PLUS (BLACK) as everything I print is used in engineering prototypes (brackets, fixtures...structural stuff) I never use any other material.

I bought two to go an a dual extruder gMax. I initially bumped the temperatures up 10C over standard brass because stringing is far preferable to clogging.After a month of tweaking settings I had to replace my PTFE tubing 3 times. I'm not sure how well these things can handle abrasion because I have almost never finished a print. Waste of $200.

So far so good

I agree with other less than positive experiences here. I tried PLA, ABS, and PTEG all with same results: uneven extrusion, and stringing. For sure disappointing for a high price paid.