Ambient Temperature Reached before starting job

[David Mason @davidmason83 My Robox is a Blue Commercial Version]

Would prints make much difference if the Robox got to ambient ‘before’ printing?

 

David

[Steve N @discosteve My Robox is a Blue Commercial Version]

I found that it seemed to help when printing ABS on AM 1.0.17 - have not tried ABS since the AM upgrade though

Steve N | Creator of things both virtual and physical

[click @click My Robox is a Green Kickstarter Limited Edition]

@davidmason83 - let me just say what @discosteve meant:

He agrees with your idea - it would be nice AM to be able to ‘enforce’ reaching ambient temperature before start printing. He did post several times that second prints, or just waiting for ambient temperature to reach certain level, helped prints a lot.

Not that old AM had feature or that he’s check if new AM has the feature.

Right?

But, yes - that feature would be nice - if not part of the print, but as pre-print option in AM…

[Steve N @discosteve My Robox is a Blue Commercial Version]

@clicky you’re sort of right - you could run the heated bed up beforehand on the old AM which meant you could drive the ambient temperature up to where it needed to be before instigating the print and indeed I used to nudge up the target ambient temperature too

But now of course in AM1.01 thats no longer possible…

Steve N | Creator of things both virtual and physical

[smitty @smitty My Robox is a Blue Commercial Version]

I’ve noticed that am compensates for the ambient temp ,if im a couple degrees over the ambient temp i wanted ,am seems to drop bed/or nozzle temp by a couple degrees

 

smitty

[David Mason @davidmason83 My Robox is a Blue Commercial Version]

I am going to design a small print that allows the printer to warm up before the big job. Like a small cube, also allows for measuring the height of the prints on a regular basis

[David Mason @davidmason83 My Robox is a Blue Commercial Version]

Here is a 20mm cubed cube i designed if anyone wants to use it to do a quick job

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[click @click My Robox is a Green Kickstarter Limited Edition]

@smitty If what you said is true - that is really cool.

@davidmason83 no need for it. Get the manual. Read the section 8.1.

What you want is something like:

M140 Sxxx where xxx is bed temperature. Please do not over do it as it might cause issues with the printer.

That will start bed heating. If you put it maybe 10º over ambient temperature you want - I am sure it will help raising chamber’s temperature to what you would like to achieve. I suspect you are not after melting internals of your printer.

Interesting thing is that there’s another command: M170 Sxxx which sets ambient temperature, but I don’t understand what they are for and how it is used for regulating ambient temperature.

[David Mason @davidmason83 My Robox is a Blue Commercial Version]

here is the cube on rough draft, it took 10 mins and got the ambient up to 45 degrees

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[click @click My Robox is a Green Kickstarter Limited Edition]

@davidmason83 Nice. Is it hollow from inside?

Oh, and, btw, thing about the environment (green ABS thrown away each time you want to print)

Just try this gcode:

M140 S50

And leave robox for 10 minutes. I am sure ambient temp is going to raise to 45º as well.

If fans kick in to start cooling it down then combination should be:

M140 S50

M170 S45

If you are still unsure, give me this evening to try them out on my Robox and report back. It really should be as easy as that.

[David Mason @davidmason83 My Robox is a Blue Commercial Version]

It’s solid inside but I printed it with around 10% infill, I was going to make another shape that was only 1cm cubed to use less.

I’m not sure how much the bed affects the ambient, I think the biggest contributor to the ambient temp is the nozzle, therefore a quick print (I’ll plant a tree later ; )

david

[Steve N @discosteve My Robox is a Blue Commercial Version]

the bed presents a large surface area into the ‘box’ (as compared to the nozzle) so should transmit that heat better into the air even though it runs at a considerably lower temperature - its the reason why radiators have large surface areas to dissipate heat

Steve N | Creator of things both virtual and physical

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