Ledcube - Revision history

Bas at 19:08, 16 April 2024

2024-04-16T19:08:11Z

← Older revision		Revision as of 19:08, 16 April 2024
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	\|Picture=Ledcube-inspiratie.jpeg		\|Picture=Ledcube-inspiratie.jpeg
	\|Omschrijving= Een kubus van ledpanelen. 24.576 pixels!		\|Omschrijving= Een kubus van ledpanelen. 24.576 pixels!
	\|Status=~~In progress~~		\|Status=Completed
	\|Contact=Sebastius		\|Contact=Sebastius
	\|Contact1=Polyfloyd		\|Contact1=Polyfloyd

Polyfloyd at 17:55, 19 February 2018

2018-02-19T17:55:46Z

← Older revision		Revision as of 17:55, 19 February 2018
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	[[File:Ledcube GQNVaxBSmCWw4v20VigbA.jpg\|200px]] [[File:Beeld-13-02-2018-09-41-23.png\|200px]]		[[File:Ledcube GQNVaxBSmCWw4v20VigbA.jpg\|200px]] [[File:Beeld-13-02-2018-09-41-23.png\|200px]]

			=== Februari 17 2018, Softwarez ===
			<!-- Yeah yeah, I'll contribute to this documentation :D -->
			(polyfloyd) I've written a small article about the software used to render the animations, you can read it here: https://polyfloyd.net/post/opengl-shaders-ledcube/

Bas: /* Februari 10 2018, Stand Up! */

2018-02-13T08:51:05Z

Februari 10 2018, Stand Up!

← Older revision		Revision as of 08:51, 13 February 2018
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	Cut a nice little stand for the cube based on some Rubiks Cube stands i saw. Those were designed for 3D printing, i made one with the laser.		Cut a nice little stand for the cube based on some Rubiks Cube stands i saw. Those were designed for 3D printing, i made one with the laser.

	This test was made of painted 3mm MDF. I'll need to buy some plexiglass to make it transparant.		This test was made of painted 3mm MDF. Sanded the edges at an angle so they match up and cut a triangle base. Applied liberal amounts of hotglue.

			I'll need to buy some plexiglass to make it transparant.

	[[File:Ledcube GQNVaxBSmCWw4v20VigbA.jpg\|200px]] [[File:Beeld-13-02-2018-09-41-23.png\|200px]]		[[File:Ledcube GQNVaxBSmCWw4v20VigbA.jpg\|200px]] [[File:Beeld-13-02-2018-09-41-23.png\|200px]]

Bas at 08:45, 13 February 2018

2018-02-13T08:45:01Z

← Older revision		Revision as of 08:45, 13 February 2018
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	I ordered every cheap step-up board from AliExpress i could find, so i can do some tests on heat, efficiency and stability.		I ordered every cheap step-up board from AliExpress i could find, so i can do some tests on heat, efficiency and stability.

			=== Februari 10 2018, Stand Up! ===

			Cut a nice little stand for the cube based on some Rubiks Cube stands i saw. Those were designed for 3D printing, i made one with the laser.

			This test was made of painted 3mm MDF. I'll need to buy some plexiglass to make it transparant.

			[[File:Ledcube GQNVaxBSmCWw4v20VigbA.jpg\|200px]] [[File:Beeld-13-02-2018-09-41-23.png\|200px]]

Bas: /* February 3 2018, one step forward and a step back */

2018-02-04T20:03:02Z

February 3 2018, one step forward and a step back

← Older revision		Revision as of 20:03, 4 February 2018
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	[[File:Ledcube E9637B05-728E-40D9-9723-AA7EA417F238.jpg\|200px]] [[File:JShHeb4TRuazVHfmVWgIg.jpg\|200px]] [[File:XoiCmrKqTruzWAJjUNRxXA.jpg\|200px]]		[[File:Ledcube E9637B05-728E-40D9-9723-AA7EA417F238.jpg\|200px]] [[File:JShHeb4TRuazVHfmVWgIg.jpg\|200px]] [[File:XoiCmrKqTruzWAJjUNRxXA.jpg\|200px]]

	[[File:SNrqfLDUShc4RJi6j7KGw.jpg\|200px]] [[File:ZrbdOYLZRAmucfXHRaYNxg.jpg\|200px]] [[File:T5PUHnGTR2d817Kk8VQ.jpg]]		[[File:SNrqfLDUShc4RJi6j7KGw.jpg\|200px]] [[File:ZrbdOYLZRAmucfXHRaYNxg.jpg\|200px]] [[File:T5PUHnGTR2d817Kk8VQ.jpg\|200px]]

	I'm not really happy with the current situation. The step-up is burning hot (AKA: causing heat and being not really efficient with my battery), the relays draw constant power. Also, the frame isn't as tight-fitting anymore, assembling and disassembling been frustrating with stuff falling apart or being pushed out by cabling. So back to the drawingboard for another iteration...		I'm not really happy with the current situation. The step-up is burning hot (AKA: causing heat and being not really efficient with my battery), the relays draw constant power. Also, the frame isn't as tight-fitting anymore, assembling and disassembling been frustrating with stuff falling apart or being pushed out by cabling. So back to the drawingboard for another iteration...

	I ordered every cheap step-up board from AliExpress i could find, so i can do some tests on heat, efficiency and stability.		I ordered every cheap step-up board from AliExpress i could find, so i can do some tests on heat, efficiency and stability.

Bas: /* February 3 2018, one step forward and a step back */

2018-02-04T20:02:44Z

February 3 2018, one step forward and a step back

← Older revision		Revision as of 20:02, 4 February 2018
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	[[File:Ledcube Fullsizeoutput 9a3.jpeg\|300px]]		[[File:Ledcube Fullsizeoutput 9a3.jpeg\|300px]]

	I wanted to start with this beautiful shot of the cube, on its own power. The inside was a mess at this point, bundles of wire going everywhere, but IT WORKS! And it's magical to hold in your hands (also a bit heavy, about 2kg)		I wanted to start with this beautiful shot of the cube, on its own power. The inside was a mess at this point, bundles of wire going everywhere, but IT WORKS! And it's magical to hold in your hands (also a bit heavy, about 2kg)

Bas at 20:02, 4 February 2018

2018-02-04T20:02:33Z

← Older revision		Revision as of 20:02, 4 February 2018
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	[[File:Ledcube_160mm_4mm_frames_rev3.svg\|200px]] [[File:Ledcube 160mm 4mm internal battery.svg\|200px]]		[[File:Ledcube_160mm_4mm_frames_rev3.svg\|200px]] [[File:Ledcube 160mm 4mm internal battery.svg\|200px]]

			=== February 3 2018, one step forward and a step back ===

			[[File:Ledcube Fullsizeoutput 9a3.jpeg\|300px]]
			I wanted to start with this beautiful shot of the cube, on its own power. The inside was a mess at this point, bundles of wire going everywhere, but IT WORKS! And it's magical to hold in your hands (also a bit heavy, about 2kg)

			After my test I started to wire everything somewhat neatly. Used tons of the Wago 221 series to connect everything. I added three relays to be able to switch the panels and a step-up converter for the Pi.

			[[File:Ledcube E9637B05-728E-40D9-9723-AA7EA417F238.jpg\|200px]] [[File:JShHeb4TRuazVHfmVWgIg.jpg\|200px]] [[File:XoiCmrKqTruzWAJjUNRxXA.jpg\|200px]]

			[[File:SNrqfLDUShc4RJi6j7KGw.jpg\|200px]] [[File:ZrbdOYLZRAmucfXHRaYNxg.jpg\|200px]] [[File:T5PUHnGTR2d817Kk8VQ.jpg]]

			I'm not really happy with the current situation. The step-up is burning hot (AKA: causing heat and being not really efficient with my battery), the relays draw constant power. Also, the frame isn't as tight-fitting anymore, assembling and disassembling been frustrating with stuff falling apart or being pushed out by cabling. So back to the drawingboard for another iteration...

			I ordered every cheap step-up board from AliExpress i could find, so i can do some tests on heat, efficiency and stability.

Bas: /* 30 januari 2018, making something dangerous */

2018-01-30T22:35:01Z

30 januari 2018, making something dangerous

← Older revision		Revision as of 22:35, 30 January 2018
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	[[File:Ledcube PjdAjASST4yZd0%DoHPC5g.jpg\|200px]]		[[File:Ledcube PjdAjASST4yZd0%DoHPC5g.jpg\|200px]]

			I'm a huge fan of this batterypack. It awes and terrifies me at the same time. Each cell can deliver 10A with ease, so the total pack can do 90A at 3.7V, so well over 300 Watts! So the pack will be treated with care and some respect.

	Also a new frame-design is ready to test. This version has a proper compensation for the laser-width so it is a tight squeeze to fit together. The internal frame for the battery and Pi also had a bit of work done. Note that the frame is very much untested, something that will happen in the next few days. I hope to have the cube operating 'stand alone' without a power-umbilical by the weekend.		Also a new frame-design is ready to test. This version has a proper compensation for the laser-width so it is a tight squeeze to fit together. The internal frame for the battery and Pi also had a bit of work done. Note that the frame is very much untested, something that will happen in the next few days. I hope to have the cube operating 'stand alone' without a power-umbilical by the weekend.

	[[File:Ledcube_160mm_4mm_frames_rev3.svg\|200px]] [[File:Ledcube 160mm 4mm internal battery.svg\|200px]]		[[File:Ledcube_160mm_4mm_frames_rev3.svg\|200px]] [[File:Ledcube 160mm 4mm internal battery.svg\|200px]]

Bas: /* 30 januari 2018, making something dangerous */

2018-01-30T22:33:06Z

30 januari 2018, making something dangerous

← Older revision		Revision as of 22:33, 30 January 2018
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	Also a new frame-design is ready to test. This version has a proper compensation for the laser-width so it is a tight squeeze to fit together. The internal frame for the battery and Pi also had a bit of work done. Note that the frame is very much untested, something that will happen in the next few days. I hope to have the cube operating 'stand alone' without a power-umbilical by the weekend.		Also a new frame-design is ready to test. This version has a proper compensation for the laser-width so it is a tight squeeze to fit together. The internal frame for the battery and Pi also had a bit of work done. Note that the frame is very much untested, something that will happen in the next few days. I hope to have the cube operating 'stand alone' without a power-umbilical by the weekend.

	[[~~File:https://revspace.nl/~~File:Ledcube_160mm_4mm_frames_rev3.svg\|200px]] [[File:Ledcube 160mm 4mm internal battery.svg\|200px]]		[[File:Ledcube_160mm_4mm_frames_rev3.svg\|200px]] [[File:Ledcube 160mm 4mm internal battery.svg\|200px]]

Bas: /* Logboek */

2018-01-30T22:32:43Z

Logboek

← Older revision		Revision as of 22:32, 30 January 2018
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	[[File:CompanionLEDcube.jpeg\|right\|300px]](Boekenwuurm) Omdat mijn kubus nu ook in elkaar zit, kan ook ik met plaatjes beginnen, zoals een companion cube. Verder heb ik gekeken naar mappings, zodat verschillende kubusen met verschillende manieren van aansluiten op dezelfde manier hun beeld laten zien.		[[File:CompanionLEDcube.jpeg\|right\|300px]](Boekenwuurm) Omdat mijn kubus nu ook in elkaar zit, kan ook ik met plaatjes beginnen, zoals een companion cube. Verder heb ik gekeken naar mappings, zodat verschillende kubusen met verschillende manieren van aansluiten op dezelfde manier hun beeld laten zien.
	De rpi-led-matrix library lijkt hiervoor wel mogenlijkheden te hebben, maar alleen met 180 graden roteren. Dat is handig als je van een hoop panelen een groot scherm wilt maken en de panelen zijn in een U-vorm op zijn kant georienteerd, maar niet direct voor een kubus bestaande uit twee strengen van panelen zoals we de kubus hier maken. De makkelijkste oplossing is om al met het vastschroeven van de panelen op het frame na te denken over richting en bedrading van de panelen. Ik ben nog niet uit over de beste volgorde van aansluiten van de twee strengen. Tot die tijd houd ik het bij ontwerpen die niet afhankelijk zijn van richting ;-)		De rpi-led-matrix library lijkt hiervoor wel mogenlijkheden te hebben, maar alleen met 180 graden roteren. Dat is handig als je van een hoop panelen een groot scherm wilt maken en de panelen zijn in een U-vorm op zijn kant georienteerd, maar niet direct voor een kubus bestaande uit twee strengen van panelen zoals we de kubus hier maken. De makkelijkste oplossing is om al met het vastschroeven van de panelen op het frame na te denken over richting en bedrading van de panelen. Ik ben nog niet uit over de beste volgorde van aansluiten van de twee strengen. Tot die tijd houd ik het bij ontwerpen die niet afhankelijk zijn van richting ;-)

			=== 30 januari 2018, making something dangerous===
			(Sebastius)Since the LEDcube is drawing in lots of international fans, i'll try making my logs in English. Not my native tongue, but it should be superior to Google Translate ;).

			Today i've added protection-boards to the batterypacks. Although the seller claims these go up to 15Amps, i really doubt it. Mux is expecting them to burn at around 8 amps. So i've added three to lighten the load. Each board will probably carry the load of about max 4 amps with ease. Pictured below are the three 1S3P packs in various stages of completion. The final pack will be a 1S9P pack for now. I'll hook the panels up to the batterypower without a booster. Might cause glitches (need to test) but it saves a lot of heat and efficiency without up/down converting the voltage.

			[[File:Ledcube PjdAjASST4yZd0%DoHPC5g.jpg\|200px]]

			Also a new frame-design is ready to test. This version has a proper compensation for the laser-width so it is a tight squeeze to fit together. The internal frame for the battery and Pi also had a bit of work done. Note that the frame is very much untested, something that will happen in the next few days. I hope to have the cube operating 'stand alone' without a power-umbilical by the weekend.

			[[File:https://revspace.nl/File:Ledcube_160mm_4mm_frames_rev3.svg\|200px]] [[File:Ledcube 160mm 4mm internal battery.svg\|200px]]