Assembling DIYTIL305

A project log for DIYTIL305

DIY replica of TIL305 5x7 matrix display.

MileMile 10/25/2018 at 21:276 Comments

This week I assembled few DIYTIL305 modules. Main problems were: Solder paste that wouldn't go through stencil, leds sticking to tweezers and not being aligned with footprint after reflow process.

First problem was solved by getting finer grain solder paste (in future led footprint will be adjusted). Solution for second problem was to clean tweezers with rubbing alcohol multiple times during assembly process and re-heating leds with hot air gun with addition of flux so they align with footprint (some leds are still misaligned). 

Afterwards I did some comparison between DIYTIL305 with red transparent acrylic and original TIL305 (last two pictures). In those pictures DIYTIL305 consumed 1.27mA and TIL305 15.78mA.


Dave's Dev Lab wrote 03/26/2019 at 03:35 point

any updates on this project?

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Mile wrote 03/28/2019 at 22:14 point

Hi Dave

Don't worry, I haven't forgot about this project :)

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Dave's Dev Lab wrote 03/29/2019 at 01:58 point

dandy! looking forward to an update!

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Dave's Dev Lab wrote 10/26/2018 at 15:24 point

fantastic! i assume you switched from type3 paste to type5?

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Jan wrote 10/26/2018 at 10:22 point

LEDs under the acrylic sheet really look fancy! I like that they're brighter than the original ones. A bit more pointy would be nice but I guess thats just a side-aspect!
An added 0,8 or 0,6mm thick drilled PCB could act as a template for that?!

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davedarko wrote 10/25/2018 at 22:31 point

cool :)

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