Ohio State LED Neon Sign (Block O)
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Printed channels that hold LED neon strip to build a lit Ohio State Block O sign, with mounting and power parts
- Ocena
- 5 / 5
- Polubienia
- 15
- Pobrania
- 24
- Wydruki
- 1
- Wyświetlenia
- 333
- Oceny
- 1
Aktualizacja u źródła:
Informacje o modelu
- Źródło
- Printables
- Kategoria
- Wall-mounted
- Licencja
- Creative Commons — Attribution — Noncommercial — NoDerivatives
Printed channels for an Ohio State Block O neon sign. Each channel holds a strip of LED neon, and every channel is sized so the strip's cut-off length fits exactly, with no gaps. I made 3 signs from 2 white strips and 1 red strip.
Parts list
LED neon strip, white (x2): amazon.com/dp/B08SJHFY3X
LED neon strip, red (x1): amazon.com/dp/B08SHZZ45X
5 V power supply: amazon.com/dp/B01GEA8PQA
Dimmer (the sign is very bright at 100%): amazon.com/dp/B07HN1BJWK
20 AWG wire: amazon.com/dp/B093LBG853
Copper tape (2 lengths, for the power bus)
4 square nuts and 4 screws (dimmer bracket)
A board or frame to mount it on
Full-size template
The files include a 1:1 drawing as a PDF. Print it tiled at 100% with cut marks on and no printer margins (Foxit example below), then tape the pages together. It shows the sign's size and gives you the hole pattern for mounting the channels to wood.
Printing
Channels: black PLA. Print the threads at 0.1 mm layers; the rest of the channel is fine at 0.2 mm. Infill is your choice.
Fasteners: PLA, 100% infill, 0.1 mm layers so the threads form well. They are delicate, so don't overtighten them or they can snap.
Assembly
Push the LED strip part way into a channel and measure how much you need. The LEDs are not centered in the strip, so the length changes depending on whether they face the inside or outside wall. Note which way you had it before cutting.
Cut the strip with a standard razor blade in the included cutting jig for a clean, square cut.
Solder the positive and negative wires to the end of the strip that goes at the channel's unthreaded hole.
Thread the wires through that hole and press the strip into the channel. It should be a tight fit. [Photo
Do the same for every letter. The red strip goes in the Block O parts. The large O comes in sections that fit together like a simple puzzle; assemble them before inserting the strip.
Power
I ran 2 lengths of copper tape across the back as a positive and a negative bus, and soldered each segment's wires to the matching strip. The 5 V supply feeds the dimmer, and the dimmer feeds the bus.
The included bracket mounts the dimmer to the power supply with 4 square nuts and 4 screws. One version adds strain relief for the cable from the dimmer to the sign.
The Ohio State name and Block O are trademarks of The Ohio State University. This is a fan project for personal use only; please don't sell signs made from it.