At 200 degrees I push the old one by hand or through control panel in RepG so that it is extruding.
Then I immediately pull it out by hand. It seems to reduce any blob on it this way.
Then push the new one as far as I can by hand and reclamp the lamp.
Then extrude a bit if I want to get rid of all the old before I start to print.
I don't adjust the screw at all.
Recommended Posts
thedudevt 0
I don't do it often... but I heat to 160, unlatch and swing out the extruder tensioner, pull out the filament, push the new filament into the bowden by hand until it stops, close the extruder tensioner and re-latch. set the temp to your normal extruding temp (180) and feed the filament be turning the gear , or using printerface, until it resists. Extrude till you seen clean new color, print.
I don't touch the thumb screw. I've also added a jam nut to the thumb screw tightened against the tensioner block to keep it in place once I've found a good setting.
Since there's no spring on the stock tensioner, this totally won't work with filaments of different diameters...
Kyle
Link to post
Share on other sites