IrvineCAGuy

As a newcomer to 3D I purchased a used UM2 (now obsolete). The previous owner upgraded it to print 1.75mm but did not do a real "upgrade" to UM2+. After a few print jobs, the heater went out. Speaking with the folks at fbrc8 I learned that I can do an upgrade to UM2+. I purchase the upgrade kit and completed the upgrade in a few hours. Great. I found that UM2+ prints 2.85(3mm) filament, not 1.75. The good news, the guy gave me a case (12 rolls) of 3mm filament of assorted colors. I spent the better part of the night trying to get the base layer not to warp and roll up, and finally gave up. Doing some research, I discovered that PLA has a shelf-life of about 6 months and must be stored in an airtight bag with desiccant to keep it from absorbing water moisture. The rolls he gave me must have been on the shelf for a few years. In the morning I ran down to the local filament store and got a brand new roll of 3mm black PLA. Voila - the base print is sticking to the build plate (I did use some glue) and the build it proceeding nice and clean. Moral: don't use old PLA. Other moral: If you are new to 3D printing, buy a new printer that comes with a warranty.

It would be nice to have a Search feature on this website in order to find specific topics. Thanks.

Hi Erin. Thank you for this information. I guess I hastily purchased a used UM2 not realizing it was obsolete and not (easily) supported.

UM2 nozzle heater turns off after a few minutes of printing. Turn off power and wait for some time. Restart and it will work again for a few minutes. Temp sensor shows correct temp and responds to heat gun test. So I don't think its a sensor. I don't believe it's a connection to the heater, unless running at 210C might do something internally. As I am a new user of this obsolete model, it's been hard to find anyone or any place to get assistance diagnosing the issue. Any ideas?

I'm looking for replacement parts for my Ultimaker 2. Searching the web I'm just finding UM2+ parts. Is the UM2+ basically the same as the UM2 and can the parts fit interchangeably? If not, where can one find UM2 parts?

Similar question. Is the UM2 being supported and/or talked about?? I got a used one as my first printer and have some questions. Anyone still using this model?