SoliForum - 3D Printing Community — [SOLVED] upgrading motor/heater for faster extrusion?

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (cor5151) — Mon, 22 Dec 2014 06:31:24 +0000

thanks! might be worth fixing for the future, I'll spend pics of the gears when i order some volcano's, not sure when that will be atm.

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (elmoret) — Mon, 22 Dec 2014 04:35:24 +0000

Running a polymer at a temperature that overloads the machine to the point that it would bend the barrel would definitely break gears in the gearbox, no real surprise there. I do have some spare gears, email me through the Filastruder contact form if you need some.

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (cor5151) — Mon, 22 Dec 2014 04:06:40 +0000

@elmoret I managed to break a gear inside my beta motor looking into it there are fewer gears in it and there a cast material that looked almost brittle compared to the stock/ks motor gears.
this happened after about 20hours of my first real use of the thing, granted the barrel/screw failed. now i have a twisted barrel with a jammed screw. its fine though because i've extra's.
think the problem was extruding a hips/santoprene mixture.

on another note i have managed to put http://www.parts-express.com/mabuchi-mo … m--259-210 into the stock and ks motors to reach speeds that about match the beta motor and have extruded tons of material with them so far, for the ks motor its more of a pain than stock and the gear has to be pressed off without damaging the gear to bad, and put back on the other shaft with a strong epoxy like jbweld.

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (elmoret) — Mon, 15 Dec 2014 17:17:30 +0000

50-100% faster? No problem. You'll need a beta motor for 50% faster, and to overvolt it/add cooling for 100% faster.

500% faster? You'll need a much more powerful motor (expensive), possibly a new feedscrew/barrel (very expensive), and then you'll battle diameter tolerance problems from unstable viscoelastic flow. Industrial extruders get around the latter by either using very expensive laser mics, or complicated die-draw equipment.

I designed the Filastruder to be as inexpensive as possible but still extrude quality filament faster than 1-2 printers could use it up. Going much faster gets expensive quickly.

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (redbarret) — Mon, 15 Dec 2014 15:37:23 +0000

Thanks elmoret.

elmoret wrote:

You would need to be extruding roughly 5 times faster than normal to need a larger heater.

Any reason not to experiment with that speed?

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (elmoret) — Mon, 15 Dec 2014 14:18:10 +0000

You would need to be extruding roughly 5 times faster than normal to need a larger heater.

Most of the heat goes to the air, not the plastic.

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (redbarret) — Mon, 15 Dec 2014 06:35:07 +0000

Hm Ok thanks.
So if the heater can't heat up fast enough for the motor speed, only that's when you'll need a more powerful heater?

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (elmoret) — Sun, 14 Dec 2014 22:55:14 +0000

Because of the PID controller - it will turn the heater on for longer.

Just like when you're printing with your 3D printer at slow speeds versus fast speeds.

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (redbarret) — Sun, 14 Dec 2014 21:34:22 +0000

OK.
If I just upgrade the motor without upgrading the heater, how does the plastic manage to melt at same pace while moving faster in the pipe (less time to heat)?

Re: [SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (elmoret) — Sun, 14 Dec 2014 20:26:09 +0000

Heater definitely does not need to be upgraded, and should not be upgraded for safety reasons. A more powerful heater will result in thermal decomposition of the material - with certainly if the controller fails, and possibly even if not.

The beta motor is 50% faster and available in the store:

http://www.filastruder.com/collections/ … /gearmotor

[SOLVED] upgrading motor/heater for faster extrusion?

null@example.com (redbarret) — Sun, 14 Dec 2014 20:19:42 +0000

I'm thinking of upgrading the heater and motor of my filastruder to extrude plastic faster. I don't really have the knowledge to calculate what power heater should go with what kind of motor.
Any tips? Anyone done this before?