<![CDATA[SoliForum - 3D Printing Community — Filament Jams Davinci jr. 1.0 Pro]]> 2020-03-15T01:29:51Z PunBB https://www.soliforum.com/topic/18473/filament-jams-davinci-jr-10-pro/ <![CDATA[Re: Filament Jams Davinci jr. 1.0 Pro]]> Thanks for the response, but to be honest I don’t think that’s it. I had, in fact torn down the entire hot end, cleaned it out, even soaked it in xylene (which apparently  dissolves PLA) and reassembled. I have both a .4 nozzle as well as a .3 nozzle (which has much less use) and I get this with both.  In fact, after thinking about this a lot I am thinking this is in the Bowden extruder. I think there must be some optical device in there that is not working correctly after I tore  down the extruder to clean it up.  Either that or I might have damaged one of those tiny JST connectors.   So now I just have to figure what I might have done.This might be self inflicted. I am wondering if anyone has replaced their Bowden extruder with one of the aluminum ones you see on Amazon, and in fact, are they any better.  I have always had a problem with slippage with mine which was what motivated me to take it apart in the first place.

]]> https://www.soliforum.com/user/20888/ 2020-03-15T01:29:51Z https://www.soliforum.com/post/152779/#p152779 <![CDATA[Re: Filament Jams Davinci jr. 1.0 Pro]]> Over time thin layers of filament coat the inside of the heatbreak and they simply get worse. Think of it as hardening arteries. They get to a point where the filament feeds through freely. The only option is to tear it down and burn it out of the metal parts using a torch or replace the hot end.

]]> https://www.soliforum.com/user/7731/ 2020-03-13T23:26:45Z https://www.soliforum.com/post/152770/#p152770 <![CDATA[Filament Jams Davinci jr. 1.0 Pro]]> After about 15 months of service, suddenly my
printer cannot complete a print. After 5 to ten layers the hot end parks itself on the home axes and declares a filament jam.  I have tried two different hotends (.3 an .4 nozzles) and tried to print different objects. I have leveled it numerous times and adjusted the z offset height to .31 mm (I use a mechanics feeler gauge). I am feeding it externally using the same mechanism I have used for the past six months (it’s very low friction).

I am using Cura to and saving the file to an SD card.

Any suggestions would be much appreciated.

Terry

]]> https://www.soliforum.com/user/20888/ 2020-03-13T18:03:32Z https://www.soliforum.com/post/152768/#p152768