Progress on extruder
I had a conference this week so didn't do much again. This morning I afghan-lathed the PTFE rod, heater tube and nozzle. So that's the extruder complete now except for the heater wire/thermistor.



It looks like some weird laser pistol or something.
- posted by Simon McAuliffe @ 03:54

 
Extruder
I'm starting with the Mk II extruder before I embark on making a Repstrappable version.

I assembled the top portion today. It took quite a while to do because it requires some lathing. The bottom half can wait for another day.

- posted by Simon McAuliffe @ 07:49

 
Wobble reduced
I did a little fiddling and reduced the wobble:



It's around half a millimetre but it still needs improving. The problem is caused by the connection between the motor shaft and the studding shaft, which is slightly off-center. That's because I'm using plastic tubing to connect the two and the weight of the X axis assembly distorts the plastic tubing. It holds the distorted shape to some degree so it wobbles.

The X axis wobble is essentially completely gone now and that was the worst before, so this is a good step. It needs some more work. I may be able to re-inforce the tubing so it doesn't distort.
- posted by Simon McAuliffe @ 07:07