DId the nylon print come unstuck from the bed or did the part just have bad layer adhesion and break apart? Ultimaker Nylon normally has a really strong layer adhesion on default profiles without any temp changes or enclosing the printer. I do use the front door though just to keep drafts out. The only time I have had bad layer adhesion is when the nylon has absorbed too much moisture and requires drying. You can hear small crackles and pops when it's printing and the print is very milky (if natural Nylon).
You need to be very careful with the heat gun as some heat guns can heat up too hot and damage the printer parts.
I would contact your reseller as you may be able to get a replacement core for free if its a UM one and damaged due to the flooded head. It would be good for them to know for reporting frequencies of this problem occurring and if you require replacement parts they may be covered.
Not sure of if there is a head assembly manual but there is a bit of a front door guide Here
Recommended Posts
Daniel_ouf 0
Also, regarding the ABS print, no enclosure and poor bed adhesion. I have since upgraded and have my UM3+ enclosed with good print results with nylon (+10 to 15 degrees print core, default bed temp).
Link to post
Share on other sites