tana4
Posts: 5
Joined: Tue Nov 28, 2017 10:47 am

Simultaneous heating of the bed and extruder.

Fri Feb 01, 2019 12:49 pm

How do I set up S3D to automatically switch on the extruder and bed heating at startup at the same time? Like, for example, on a screenshot.

exx.JPG

greybeard
Posts: 178
Joined: Mon Mar 02, 2015 1:23 pm

Re: Simultaneous heating of the bed and extruder.

Fri Feb 01, 2019 5:56 pm

The first question to consider is: Why do printers heat Extruder and Bed separately?

I recommend a bit of homework before burning your power board... Of course, many printers use a $30 board so, for $30, you can have some fun while creating what will end up as a paper-weight...
3D Print Parts
https://www.thingiverse.com/Still_Breathing/designs

airscapes
Posts: 316
Joined: Tue Mar 06, 2018 10:35 am
Location: Philadelphia PA Area

Re: Simultaneous heating of the bed and extruder.

Fri Feb 01, 2019 8:06 pm

If you want the print to start before the bed is hot, uncheck the box on the temperature tab. Some times with ABS I will turn the bed heater on while I am prepping the model as it takes 20 minutes to reach 110C.. this is why they don't go on at the same time.. your filament would be cooked to death as the extruder only takes a minute or so to reach 235C .

tana4
Posts: 5
Joined: Tue Nov 28, 2017 10:47 am

Re: Simultaneous heating of the bed and extruder.

Sat Feb 02, 2019 3:27 am

Heatbed heat at 100C in about 2 minutes. I have a 12V bed MK3 200x300 connected to 24V. I control it with an external mosfet (STH315N10). The current consumption is 26A

Sometimes the desired temperature reaches the bed faster, sometimes the extruder.

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