1 Topic by jej202 (edited by jej202 2019-10-24 08:19:54)

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Topic: Drawing 24v from Da Vinci Mini

I'm trying to figure out the best place to draw <0.2A on a da vinci mini PCB for a layer cooler fan. The empty 3 pins without a header marked "Lighting" (bottom right) provides 24v, but I don't know what the max draw is. I figure a few LEDs take less than a fan, so I'm hesitant. Additionally, I don't believe the "FAN" pins are wired up at all.

If I want to tap into the main power coming off power supply, how would I do that? The mini has an external power supply, with that barrel plug adapter shown.

My electronics knowledge is pretty basic, so any help would be appreciated.

http://soliforum.com/i/?fmxCveT.jpg

2 Reply by carl_m1968

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Re: Drawing 24v from Da Vinci Mini

jej202 wrote:

I'm trying to figure out the best place to draw <0.2A on a da vinci mini PCB for a layer cooler fan. The empty 3 pins without a header marked "Lighting" (bottom right) provides 24v, but I don't know what the max draw is. I figure a few LEDs take less than a fan, so I'm hesitant. Additionally, I don't believe the "FAN" pins are wired up at all.

If I want to tap into the main power coming off power supply, how would I do that? The mini has an external power supply, with that barrel plug adapter shown.

My electronics knowledge is pretty basic, so any help would be appreciated.

http://soliforum.com/i/?fmxCveT.jpg


Just connect straight to power supply with a switch mounted in the case if you want to be able to control it. Even if you did find a source on the board you could not control it and you could damage the board.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3 Reply by jej202 (edited by jej202 2019-10-24 12:29:34)

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Re: Drawing 24v from Da Vinci Mini

carl_m1968 wrote:

Just connect straight to power supply with a switch mounted in the case if you want to be able to control it. Even if you did find a source on the board you could not control it and you could damage the board.

Should I just solder a few lead wires to the barrel adapter?

Thanks for the response

4 Reply by carl_m1968

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Re: Drawing 24v from Da Vinci Mini

jej202 wrote:
carl_m1968 wrote:

Just connect straight to power supply with a switch mounted in the case if you want to be able to control it. Even if you did find a source on the board you could not control it and you could damage the board.

Should I just solder a few lead wires to the barrel adapter?

Thanks for the response


Just use a meter to find the 24 volt line from the power supply and splice a wire to that line. Then connect the newly spliced wire to a switch newly mounted in the case. The fan power lead connects to the other side of the switch. The fan ground will be spliced in to any of the ground lines coming from the power supply. Make sure the fan is a 24 volt fan. The reason for the switch is you don't want it running on the first layer.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

5 Reply by jej202

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Re: Drawing 24v from Da Vinci Mini

Maybe I'm misunderstanding you, but there's not really a line I can splice into. If it was an internal power supply I could splice a molex connector or something similar. But this is a wall wart type supply that delivers 24vdc through the barrel adapter, which is soldered to the board.

So other than soldering leads to the female barrel on the board, I'm not sure what my options are.

The wiring of the switch and fan after I tap into the power seems pretty straightforward. Thanks again

6 Reply by carl_m1968

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Re: Drawing 24v from Da Vinci Mini

I apologize, I forget they are making them cheaper everyday. Yes you can just solder wires where the barrel plug attaches to the board at and then add the switch as already mentioned.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.