@payala
I checked today the spare nozzle I bought along with the hotend, which should be identical to the one installed...
the length of the 0.5 orifice is 1.96mm, so it's out of the specs found on (http://reprap.org/wiki/J_Head_Nozzle). in that page it says:
tonight I am going to drill the 2mm hole a little further to allow the orifice length to be reduced to 0.5mm and create a flat of about 1.2 mm. I'll report back if that worked.
A.
I checked today the spare nozzle I bought along with the hotend, which should be identical to the one installed...
the length of the 0.5 orifice is 1.96mm, so it's out of the specs found on (http://reprap.org/wiki/J_Head_Nozzle). in that page it says:
moreover, it's missing the 1.28 mm flat part around the orifice, so it practically ends with a sharp point with a flat of only 0.7-0.8mm diameter.Quote
reprap.org, chapter 8.2.2
Nozzle orifice length
Mk IV hot-ends (up to the middle of May 2012), and earlier models, had a nozzle orifice length of approximately 1.25mm.
Mk IV hot-ends (after the middle of May 2012) and Mk V hot-ends have a nozzle orifice length of approximately 0.50mm.
Note: Due to the nature of 5c collets, the nozzle orifice length can vary as much as 0.25mm.
tonight I am going to drill the 2mm hole a little further to allow the orifice length to be reduced to 0.5mm and create a flat of about 1.2 mm. I'll report back if that worked.
A.