Page 1 of 1
Nozzle size 0.7mm which max. print height ?
Posted: Tue Feb 16, 2016 2:58 am
by Elysio
Hi
What kind of experiences do you have with a 0.7mm nozzle in layer height?
My experiences with a 0.5mm nozzle are 0.3mm height max.
Is 0.5mm layer height to much
I also guess it is vital to cool actively the stepper motor for the filament transport, if I will use a bigger nozzle.
Re: Nozzle size 0.7mm which max. print height ?
Posted: Tue Feb 16, 2016 5:16 am
by Tincho85
Never used a 0.7mm nozzle, but as a general rule layer height must be < 80% of nozzle diameter and extrusion width >= nozzle diameter.
So with an 0.7mm nozzle:
Your maximum layer height is: 0.7*0.8 = 0.56mm
Your extrusion width should be 0.7mm or greater.
Hope it helps.
Re: Nozzle size 0.7mm which max. print height ?
Posted: Tue Feb 16, 2016 8:37 am
by Elysio
Hi.
Thank you.
Allright thats a fine rule.
What about cooling the motor of the filament extruder?
I think the pressure and the speed must be much higher.
The motor is still with a 0.5mm nozzle more than warm.
Re: Nozzle size 0.7mm which max. print height ?
Posted: Tue Feb 16, 2016 9:07 am
by Tincho85
Yes, install one.
It's normal that they are hot to touch, but you should be able to leave your fingers there while printing.
If you can't then you will need to reduce your motor current via firmware. 50ºc is good, 80º no.
Check this post for more info:
http://forum.seemecnc.com/viewtopic.php?f=77&t=6024
This is what I did.
Auto-Quote
Re: Nozzle size 0.7mm which max. print height ?
Posted: Tue Feb 16, 2016 2:06 pm
by bot
robotdigg also sells heatsinks for about $0.40. Just gotta ship em here.
