1 Topic by Whiteshark

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Topic: Rumba - Print bed

hi,

After several problems, I changed the board to Rumba.
I have some problems to setup, but I have to fix one by one. Here's the first one:

- Print bed doesn´t heat; is the wiring correct (see picture)?
- If I connect the bed heater to the extruder pins and select "heat extruder", the bed heats.

Thanks in advance.

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Solidoodle 3, Slic3r, ABS

2 Reply by pirvan

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Re: Rumba - Print bed

That is good test, so obviously your bed heater works.  I'm not familiar with the Rumba, but you need to check the output.  Either the MOSFET is bad, or some firmware setting is wrong.

Hopefully someone familiar with that board can help.

To print or, 3D print, that is the question...
SD3 printer w/too many mods,  Printrbot Simple Maker Ed.,  FormLabs Form 1+
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3 Reply by wardjr

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Re: Rumba - Print bed

Whiteshark wrote:

Or should I do this connection?

Not this one delete it to avoid confusion please.

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SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
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4 Reply by wardjr

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Re: Rumba - Print bed

You do the first connection pictured if you simply made an error drawing your colors.
Red should be positive and black should be negative.  If you actually wired it with the polarity reversed as in the photo, you'll need to correct it.  I can't say if having the polarity reversed would damage the board or not.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

wardjr's Website

5 Reply by Whiteshark

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Re: Rumba - Print bed

The connection is ok (I made an error drawing the colours).
What I have to check more?

Solidoodle 3, Slic3r, ABS

6 Reply by accusedmonk

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Re: Rumba - Print bed

Do you have the correct board selected in firmware?

Bowden SD3, Rumba, E3D hotend, Mk5 with RtRyder changes, Direct drive Y axis and bearings, GT2 pulleys and braided fishing line, Lawsy linear bearing conversion, M3 Z screw.

7 Reply by wardjr

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Re: Rumba - Print bed

I don't know you may want to contact the seller.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

wardjr's Website

8 Reply by lueman

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Re: Rumba - Print bed

I thought the bed is basically a straight wire no (+, -)

SD4 with E3D V6.

Those who don't know ask, those who don't care comment,  those who comment without answers  hide ignorance for fear of asking. Be fearless!

9 Reply by wardjr

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Re: Rumba - Print bed

lueman wrote:

I thought the bed is basically a straight wire no (+, -)

This is an old thread and pictures have been changed.  You are correct in that bed heater wires have no polarity.  The HB PWR connections (power into the board) do need the correct polarity.

Printit Industries Model 8.10 fully enclosed CoreXY, Chamber heat
3-SD3's & a Workbench all fully enclosed, RH-Slic3r Win7pro, E3D V6, Volcano & Cyclops Hot End
SSR/500W AC Heated Glass Bed, Linear bearings on SS rods. Direct Drive Y-axis, BulldogXL
Thanks to all for your contributions

wardjr's Website

10 Reply by lueman

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Re: Rumba - Print bed

Thanks wardjr glad I havent gone crazy.

SD4 with E3D V6.

Those who don't know ask, those who don't care comment,  those who comment without answers  hide ignorance for fear of asking. Be fearless!