Contemporary heating build plate/nozzle

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stevetriple
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Joined: Tue Jan 30, 2018 6:27 pm

Contemporary heating build plate/nozzle

Postby stevetriple » Fri Mar 23, 2018 5:21 pm

Hi everyone, is it possible to heat the build plate and the nozzle at the same time?

When I start a print it heat the nozzle and then the build plate, wasting a lot of time, and to prevent this I manually heat the plate and the nozzle (with LCD) before sending the print.... but it's a nonsense.
Thanks

zemlin
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Re: Contemporary heating build plate/nozzle

Postby zemlin » Fri Mar 23, 2018 6:09 pm

Not sure how you consider it a waste of time. The build plate takes a while to heat up and you can't change that unless you change to a more powerful heater and modify the circuitry to handle the additional current.
IdeaMaker defaults to start both at the same time so the nozzle sits at full temp while the platform heats. I prefer S3D's logic where the nozzle doesn't start to heat up after the bed has reached the target temperature. There is a checkbox on the IM scripts tab to disable the default heating commands so you can add your own commands to the start script.

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Noren
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Re: Contemporary heating build plate/nozzle

Postby Noren » Fri Mar 23, 2018 8:17 pm

What is a lot of time in your measurements? Just curious? My printer heats to 90° in a matter of minutes.

stevetriple
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Re: Contemporary heating build plate/nozzle

Postby stevetriple » Sat Mar 24, 2018 9:27 am

Thank you for the answer. I have a 3d lab and 2 Raise3D in it. I use S3D and if the printer has the possibility to heat up both build plate and nozzle it would be better for me...

stevetriple
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Re: Contemporary heating build plate/nozzle

Postby stevetriple » Sat Mar 24, 2018 9:28 am

Noren wrote:What is a lot of time in your measurements? Just curious? My printer heats to 90° in a matter of minutes.

When you have to print more pieces as possible, ten minutes is a waste of time

zemlin
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Re: Contemporary heating build plate/nozzle

Postby zemlin » Sat Mar 24, 2018 11:31 am

The default in Idea Maker is to heat both at the same time. The nozzle just heats a lot faster.
The build platform has a lot more mass and the heater has a lower energy density so it takes some time.
If you want to get the next part up and running as quick as possible, edit your end script so the bed heater doesn't turn off and the nozzle temp gets set to something like 180C. Your machine will be able to just into the next part with just a few seconds of start time, assuming having the hot plate doesn't impede your ability to remove the finished part.

If a few minutes is a significant waste of time, you must be running small parts. Put a bunch of them on the platform and build all at once.

stevetriple
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Re: Contemporary heating build plate/nozzle

Postby stevetriple » Sat Mar 24, 2018 12:22 pm

zemlin wrote:edit your end script so the bed heater doesn't turn off and the nozzle temp gets set to something like 180C


Thanks, what string do I have to add to get this?

zemlin
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Re: Contemporary heating build plate/nozzle

Postby zemlin » Sat Mar 24, 2018 12:38 pm

I pulled up the end script in my IdeaMaker. It looks like this:

M104 S0
M140 S0
G91
G1 E-1 F300
G1 Z+0.5 E-5 X-20 Y-20 F9000.00
G28 X0 Y0
M84
G90

here is a reference for GCODE: http://reprap.org/wiki/G-code

the first command is M104.
http://reprap.org/wiki/G-code#M104:_Set ... emperature
You can use that one to set your extruder temp.

The second command is M140.
http://reprap.org/wiki/G-code#M140:_Set ... .28Fast.29
That's your bed temp.

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Noren
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Re: Contemporary heating build plate/nozzle

Postby Noren » Sat Mar 24, 2018 1:38 pm

Wouldn’t it be possible to insert gcode at the end of the print that cycles the heat on and of at regular intervals? That way you could have the heat still on when you start the next print.

stevetriple
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Re: Contemporary heating build plate/nozzle

Postby stevetriple » Tue Mar 27, 2018 3:37 pm

zemlin wrote:I pulled up the end script in my IdeaMaker. It looks like this:

M104 S0
M140 S0
G91
G1 E-1 F300
G1 Z+0.5 E-5 X-20 Y-20 F9000.00
G28 X0 Y0
M84
G90

here is a reference for GCODE: http://reprap.org/wiki/G-code

the first command is M104.
http://reprap.org/wiki/G-code#M104:_Set ... emperature
You can use that one to set your extruder temp.

The second command is M140.
http://reprap.org/wiki/G-code#M140:_Set ... .28Fast.29
That's your bed temp.


Thanks!

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Julia Truchsess
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Re: Contemporary heating build plate/nozzle

Postby Julia Truchsess » Tue Mar 27, 2018 10:38 pm

AFAIK they do both heat at the same time by default. What is confusing is that the display is not updated during the process. So the displayed temperature of the bed will look like it is not heating, but as soon as the extruder hits temp it will be updated and you'll see that it's already been heated.

stevetriple
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Joined: Tue Jan 30, 2018 6:27 pm

Re: Contemporary heating build plate/nozzle

Postby stevetriple » Wed Mar 28, 2018 8:41 am

Julia Truchsess wrote:AFAIK they do both heat at the same time by default. What is confusing is that the display is not updated during the process. So the displayed temperature of the bed will look like it is not heating, but as soon as the extruder hits temp it will be updated and you'll see that it's already been heated.

Really?? I'll check this thank you

stevetriple
Posts: 56
Joined: Tue Jan 30, 2018 6:27 pm

Re: Contemporary heating build plate/nozzle

Postby stevetriple » Fri Jun 01, 2018 2:48 pm

zemlin wrote:I pulled up the end script in my IdeaMaker. It looks like this:

M104 S0
M140 S0
G91
G1 E-1 F300
G1 Z+0.5 E-5 X-20 Y-20 F9000.00
G28 X0 Y0
M84
G90

here is a reference for GCODE: http://reprap.org/wiki/G-code

the first command is M104.
http://reprap.org/wiki/G-code#M104:_Set ... emperature
You can use that one to set your extruder temp.

The second command is M140.
http://reprap.org/wiki/G-code#M140:_Set ... .28Fast.29
That's your bed temp.



Hi, could you explain me why with this Ending Script it doesn't work? thanks

M107
M1002
M104 S90 T1
M104 S90 T0
M140 S60
M117 Print Complete.
G28 X0 Y0
G91
G1 Z40
G90
M84

billbucket
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Re: Contemporary heating build plate/nozzle

Postby billbucket » Fri Jun 01, 2018 4:28 pm

Julia Truchsess wrote:AFAIK they do both heat at the same time by default. What is confusing is that the display is not updated during the process. So the displayed temperature of the bed will look like it is not heating, but as soon as the extruder hits temp it will be updated and you'll see that it's already been heated.



This isn't the case for the Pro2:

Vicky@Raise3D wrote:I have double checked with our software team, that the preheating sequence is nozzle first, heated bed later. Not heating at the same time...


In the Pro2, they have a pre-g-code heating function (in the closed source firmware) that forces sequential heating.

viewtopic.php?f=2&t=8408


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