I was trying one for a while with Greg's extruder but I started having problems getting it dialed in correctly. There was a lot of friction in my tube and I kept having problems with my gear slipping. I'm only running 1.75 mm filament so direct drive should be fine. I'm going to try a couple different micro extruders which weigh ~200g or less.
The lag issue is something I really dislike about the bowden tube, particularly since I want to print more than one part at a time. Kronos Robotics posted a great article on how they greatly improved their Rostock Max by attaching a modded QU-BD extruder to the effector. That article is here: [www.kronosrobotics.com]
The delta rod connection wear could be an issue and that will need monitoring
The lag issue is something I really dislike about the bowden tube, particularly since I want to print more than one part at a time. Kronos Robotics posted a great article on how they greatly improved their Rostock Max by attaching a modded QU-BD extruder to the effector. That article is here: [www.kronosrobotics.com]
The delta rod connection wear could be an issue and that will need monitoring