3mm bungee cord arrived today.
Going to be perfect for the suspended extruder.

I still don't know why it needs to be elasticated. But as every suspended large delta I've seen has an extrduer suspended by elasticat material. I guess it's been tested and proven a good idea.

Even more reason I think to beef up the belts as th extruer bouncing around has to put extra stress on the carriages and belts.
You'd think anyway.

Currently waiting for 50 tennis balls to arrive so I can go test my new slinging target.
Also invented a tennis ball picker upperer.
The flexible tennis ball valve was printed with flexible pla on the he3d k200.
http://slinging.org/forum/YaBB.pl?num=1523898343

Think the flexbile socket brackets were done partly on the he3d and partly on the flashforge before it got ill.