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What kind of soldering iron is that? Does it self feed the solder? Subbed
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Ancient
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1 réponse
Ancient
Ancient
il y a 3 jours
The soldering iron is a TS80 - nothing special.
I'm applying solder to the bit out of shot.
For the frame, I cover it in flux and then bring in a blob of solder not
because this is a good approach in general (it isn't), but because I
don't want to melt the PLA jig or knock the parts out of alignment. So a
quick blob of solder to hold it in place, then remove it from the jig and
reflow that blob to get a good joint.
The display connector is 0.65mm pitch, and here, swiping a blob of solder
across is the only way I'm going to do it by hand
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How are you controlling it with the bumps on top of the lego? Are those
light sensors on the pcb board right underneath them?
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Ancient
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1 réponse
Ancient
Ancient
il y a 1 mois
Capacitive
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jeff dughman
il y a 2 mois
Sweet man, Where did you buy the boards at? I didnt see a link.
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Ancient
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1 réponse
Ancient
Ancient
il y a 2 mois
JLCPCB

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Hi James,
We have a high resolution module with 0.39x0.7 inch OLED 1024x768 RGB
50000:1 CR 5000nits full colour
Interested reply
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tablatronix
tablatronix
il y a 2 mois
Insane! What is the tolerance of space around the pcb assembly?
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Ancient
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1 réponse
Ancient
Ancient
il y a 2 mois
It's a 0.8mm PCB with 0.7mm resin around it. Over the screen it's down to
0.1mm, and it was a challenge getting that consistent.
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Jerome Demers
il y a 2 mois
How did you prototype the initial PCB structure? All CAD then export dxf
in PCB? Did you laser cut or 3D print them first before sending them to
get made?
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Ancient
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1 réponse
Ancient
Ancient
il y a 2 mois
Yes, 3D model, then exported as dxf. Worked first time
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What kind of soldering iron is that? Does it self feed the solder? Subbed
Répondre
Ancient

·
1 réponse
Ancient
Ancient
il y a 3 jours
The soldering iron is a TS80 - nothing special.
I'm applying solder to the bit out of shot.
For the frame, I cover it in flux and then bring in a blob of solder not
because this is a good approach in general (it isn't), but because I
don't want to melt the PLA jig or knock the parts out of alignment. So a
quick blob of solder to hold it in place, then remove it from the jig and
reflow that blob to get a good joint.
The display connector is 0.65mm pitch, and here, swiping a blob of solder
across is the only way I'm going to do it by hand.
_____________________
Where did you find the documentation to free the processor from the main
board. I've been looking into making my own circuit boards with
processors but I've only been able to work it out for arduino.
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Ancient
·
2 réponses
Ancient
Ancient
il y a 2 mois
The RP2040 minimal design example is a very good starting point.
https://datasheets.raspberrypi.com/rp2040/hardware-design-with-rp2040.pdf
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bobafettjr85
bobafettjr85
il y a 1 mois
I feel like I missed a step. How did it go from USB powered to battery
box?
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Ancient
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2 réponses
Ancient
Ancient

il y a 1 mois (modifié)
It can use either - the side PCBs have contacts along the bottom that
connect to the powered studs. [1:36]
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Kauno Medis
Kauno Medis
il y a 2 mois
Why to use usb connector if it is disabled after potting? Use 4 pads and
3d print jig for programming.
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Ancient
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1 réponse
Ancient
Ancient
il y a 2 mois
USB is still accessible in the finished brick.
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bobafettjr85
bobafettjr85
il y a 1 mois
I feel like I missed a step. How did it go from USB powered to battery
box?
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Ancient
·
2 réponses
Ancient
Ancient
il y a 1 mois (modifié)
It can use either - the side PCBs have contacts along the bottom that
connect to the powered studs. [1:36]
1
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bobafettjr85
bobafettjr85
il y a 1 mois
@Ancient Oh cool. I was confused for a bit there. This is an awesome
project btw.
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Kauno Medis
Kauno Medis
il y a 2 mois
Why to use usb connector if it is disabled after potting? Use 4 pads and
3d print jig for programming.
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Ancient
·
1 réponse
Ancient
Ancient
il y a 2 mois
USB is still accessible in the finished brick.
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Rob Speed
il y a 2 mois
First of all, that was amazing. But why not USB-C?
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Ancient
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2 réponses
Ancient
Ancient
il y a 2 mois
The socket didn't fit! The brick is 9.6mm high, and you need 1.8mm
clearance for the studs underneath, and a bit more for the resin shell.
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Panimu
Panimu
il y a 1 jour
What's inside the white brick?
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Ancient
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1 réponse
Ancient
Ancient
il y a 16 heures