Comments on RepRap: Blog: Initial experiments on filament extruder 2.0

It's worth a try. I have some maple syrup. I'll ...

2006-02-18T21:55:00.000Z

It's worth a try. I have some maple syrup. I'll have to spoon it in to the "t" juntion/ I already got it to pump granules, though.

The problem is that the drill I have tends to have a lowest rotation rate that is a bit high.

I think viscosity is key here. If you consider th...

2006-02-18T19:38:00.000Z

I think viscosity is key here. If you consider the liquid being driven round and round in the flutes of the drill bit, it needs to have something to resist that if it is to be driven axially along. The only thing that resists the rotation is the viscous shear with the stationary cylindrical walls. The bigger that is, the more axial force you have driving the liquid along.

So water won't work well. Helium II won't work at all. Syrup should go nicely though. An experiment to try with your rig, Forrest?

Here you go Steve.http://cnczone.com/forums/printt...

2006-02-17T21:28:00.000Z

Here you go Steve.

http://cnczone.com/forums/printthread.php?t=7165&pp=40

That's where you find the GalacticRoot/CNC stuff. They've got a fun forum there.

As to how long the screw has to be I don't know. Adrian may know by Monday, though. He's said he's going to play with the concept this weekend and when Adrian plays things get done in a big way. :-)

An interesting experiment.How long does the screw ...

2006-02-17T17:37:00.000Z

An interesting experiment.

How long does the screw have to be?

If a shorter screw would suffice, you might try getting hold of a worm gear then drilling a hole in a block of something to match the external diameter.

Where is the CNC location you referred to at the start? I'd like to have a play with some wax too.