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SoliForum - 3D Printing Community → Filastruder → Speed?
Hello, I was wondering if it's possible to get the filastruder to run a little faster than 6-12 hours. I'm curious because I'm thinking about getting a couple to see about making and selling filament. It seems to me that the tolerances on the filastruder are really great, even compared to some high end filament.
Thanks for any answers!
The best I have seen from "standard" settings for ABS with 194 deg C is about 8-9 hours and I have the most recent motor. I get about 1.68mm diameter +- .02 with that. I was told that insulating the barrel up to the hopper would possibly improve that and I bet if I bumped up the temp just a teeny bit I could get a tiny amount of speed, but I haven't read of anything faster than 7-8 hours per kilo. Of course, I am sure someone will now come in and explain how to get 6 hours, lol.
I've upgraded the dc motor on the ks's gearbox and standard. destroyed a beta motor as well. its really not that hard to get more "speed" out of the motor or change it out for something with a little more rpm.
i've switched the motors with http://www.parts-express.com/mabuchi-mo … m--259-210
and get near beta motor speeds with it. you can feed more volts to get higher rpm's using a higher voltage supply.
A few folks report 3 hours per kilo using PLA/wrapped barrel/hopper shaker/beta motor/3mm.
redoverred, I bet you could get inside 6 hours/kg by increasing temperature 10C and boring out the nozzle by 200 microns, plus wrapping the barrel.
Its tough to do much better than that and still maintain good tolerances. At those speeds the filament has not hardened for almost the entire winder loop, so its prone to stretching and perturbations.
There's really only two options on the market - industrial extruders at 5-50kg/hour (~$50k), and hobbyist extruders at 10-300g/hour (~$500).
redoverred, I bet you could get inside 6 hours/kg by increasing temperature 10C and boring out the nozzle by 200 microns, plus wrapping the barrel.
Really? That's pretty neat. Not having access to any sort of decent workshop, what would you think would be the best way to bore out the nozzle? I assume that's to make up for the decreased diameter due to the increase in temp.
McMaster-Carr has drill bits that are in 50 micron sizes increments. You can drill it with a hand drill, no problem.
Yes, it makes up for the increase in temperature (and will flow slightly easier).
McMaster-Carr has drill bits that are in 50 micron sizes increments. You can drill it with a hand drill, no problem.
Yes, it makes up for the increase in temperature (and will flow slightly easier).
Time to breakout the hand drill I use for pinning WH40K models! What is the standard bore size for the 1.75 mm filter nozzles you sell?
If there is a dimple milled into one of the pie shaped slices: 1.7mm
If not, 1.6mm.
1.8 drill bit would be a safe bet either way. That's what I use on my high speed ABS machine, averages 1.72mm at 190C.
Thanks everyone for all the great replies!
If there is a dimple milled into one of the pie shaped slices: 1.7mm
If not, 1.6mm.1.8 drill bit would be a safe bet either way. That's what I use on my high speed ABS machine, averages 1.72mm at 190C.
I will try the 1.8mm then, thank you!
i've recently started extruding pla out of a 3mm melt filter with a large loop on a vertical setup and just let it run down to 1.8ish, has worked pretty well for me. winder is a must for streching it like that with decent tolerances though.
You guys mentioned that you can drill out the nozzle with a hand drill - so the hole doesn't need to be super precise to make it work?
Well it needs to be a clean hole, but if you have moderate skill with a hand drill that isn't an issue.
I dont know how you guys are getting 1kg in 8hrs. Just ran it for the first time this weekend and it took 25hrs to get 1kg of mg94.
Getting about 1.75 +/-. 07 at 186c.
Setup is vertical with a filawinder
I dont know how you guys are getting 1kg in 8hrs. Just ran it for the first time this weekend and it took 25hrs to get 1kg of mg94.
Getting about 1.75 +/-. 07 at 186c.
Setup is vertical with a filawinder
Did you run it with the pound of material Tim sends first to flush out anything in the barrel after putting it together? If not, and that kilo was your first kilo, then I am going to guess that there are metal particles inside the barrel at the nozzle entrance that are blocking the nozzle. You'll want to heat the barrel and then remove power and carefully remove the brass nozzle and let it cool, then scrape, cut, or otherwise remove the plastic that will be stuck to the inside of the nozzle and you will see a ton of metal shavings embedded. Then, throw away that first batch of material because it probably has a ton of metal shavings inside it! After that, you will probably have no issues with blockages!
If that isn't the issue, then let us know!
I did do the purge with tims starter abs prior to my second kg, where i measured the speed.
I did remove the nozzle, cleaned everything up, installed the filter, and retightened everything back up.
Aside from I guess really slow speed, everything is working ok.
I would guess your pellets aren't feedibg well. Also, +/-0.07mm with ABS and a winder is not great! Something is definitely wrong, people hit +/-0.01mm with ABS and a winder.
I've tried both the horizontal and vertical bottle feeders, both about the same. The ABS source is from OS3D.
I'll play around more with the temperature and see. Only thing i notice is that the motor whines up and down as if sometimes its struggling and sometimes its not. I'm not sure if this is normal. I'm also not running with the fan, as this seems to keep the width consistently above 1.85.
I have pics of my setup on the gallery thread. Any other suggestions?
1.85 is really wide. That tells me you're extruding too cool. It is possible your temperature sensing is a bit off. Try 195C and see what that does for speed and filament diameter.
I'm currently running weekly the van at 184c and get around 1.75 +/. 05.
Speed is still the same.
Hope I didn't build it wrong
1.75mm is still wider than I'd expect at 184C. Again, please try 195C and report back both speed in inches/minute, and diameter.
1.75mm is still wider than I'd expect at 184C. Again, please try 195C and report back both speed in inches/minute, and diameter.
OK, I'll do that now
At 195c, with the fan on, im getting just shy over 12"/ min. Diameter about 1.73 +- .05.
My fan is not situated well and I would say is 75% blocked by the insulated hot end. I can try moving it forward so there is more airflow. Do you think this may help it?
More cooling is likely to:
increase diameter
reduce diameter variation
If you're still at only 1.73mm, I'd say keep increasing temperatures. For some reason, your setup is reading a little higher than actual. Go to 200 or 205C and see if you can get any additional speed, but even 12"/min is now within specifications.
More cooling is likely to:
increase diameter
reduce diameter variationIf you're still at only 1.73mm, I'd say keep increasing temperatures. For some reason, your setup is reading a little higher than actual. Go to 200 or 205C and see if you can get any additional speed, but even 12"/min is now within specifications.
Running significantly faster at 201c, getting 1.75 +/- .02
Thanks for you help!
SoliForum - 3D Printing Community → Filastruder → Speed?
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