florpglrop

hi, so I have posted here before about my interest in the mosaic display and I have shared some 3d models in the past. I just wanted to share an update to share my progress and ask for any feedback.

I have been trying to design my own version of the r142a destination and route tile. I have started with modelling an led shroud and the PCB for addressable LEDs.

https://imgur.com/a/yWxRTHr

I haven't yet ordered the 3d print or the PCB from jlcpcb. just wondering if I could get some feedback on if I made any mistakes so far. I havent begun programming this yet, which I know will be a nightmare because 1. I don't have proper images to go off of for what all the letters look like 2. its an 88 segment display so I need to determine the state of all the segments for every digit.

I have designed this prototype to be 100 by 200mm, its kind of arbitrary, I should have put more thought into it but I just wanted to get started on a first prototype to see how things would look.

hey, I want to make another update with a more finished version of the 3d model. the Idea behind this is to illuminate the segments of the mosaic design with addressable LEDs. I am not sure if this should go in another thread. I don't have a 3d printer but if anyone does, you can try printing this or you can modify the code to adjust this part for whatever you like.

https://cadhub.xyz/u/Radoka/r142a-train-route-tile

https://cadhub.xyz/u/Radoka/R142a-destination-tile
 

let me know what you all think!

On 6/10/2021 at 9:51 AM, florpglrop said:

I just wanted to update this thread with the destination sign I made and posted in another thread, as well as provide cadhub/github links:

destination tile : https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/toastedice/random_openscad_creations_I_made/blob/main/train_display_stuff/mozaicdisplay_destination.scad

original tile I posted: https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/toastedice/random_openscad_creations_I_made/blob/main/train_display_stuff/mozaicdisplay_openscad_square.scad

links may have broken:

https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/angryseptagon/random_openscad_creations_I_made/blob/main/train_display_stuff/mozaicdisplay_openscad_square.scad

https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/angryseptagon/random_openscad_creations_I_made/blob/main/train_display_stuff/mozaicdisplay_destination.scad

I just wanted to update this thread with the destination sign I made and posted in another thread, as well as provide cadhub/github links:

destination tile : https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/toastedice/random_openscad_creations_I_made/blob/main/train_display_stuff/mozaicdisplay_destination.scad

original tile I posted: https://cadhub.xyz/dev-ide/openScad#fetch_text_v1=https://github.com/toastedice/random_openscad_creations_I_made/blob/main/train_display_stuff/mozaicdisplay_openscad_square.scad

3 hours ago, BenTheMiner said:

Yes, I made it in paint based on good references that someone gave me. The route tiles are different than the destination tiles, and the R142 has different LCD tiles than the R142A.

I didn't know there were so many different mozaic displays, I used your design to make a rough model/drawing in openscad using my old code for the route sign, but I realize that its completely different from what I remember/recognize. I didn't realize that the different destination signs were so different.  my one doesn't look right but idk. https://imgur.com/a/6mmpPoX

On 5/1/2021 at 11:18 AM, BenTheMiner said:

Update: I've made the R142 destination tile! It seems the R142A has a different destination tile so I plan on making that next.

That's really interesting, I have made a model of the route tile, but I have never seen the destination tile like this. did you make it yourself? the arcs look a bit different. I think the deisgner of these mozaic displays used the same kind of arc everywhere and some of the diagonals look off. though cause of corona and being unemployed I haven't seen a destination tile in person in a while. but this is a very interesting recreation. I like how you got the horizonal and vertical line thickness right.

On 4/8/2021 at 4:24 PM, Lawrence St said:

I was actually able to successfully test this on a mini LCD screen. I'm going to see if I can create an entire sign out of it.

nice! if you can point me towards destination tile reference images maybe I can make a similar model for that if you want. 

I put it on thingiverse if anybody wants it. https://www.thingiverse.com/thing:4785826

8 hours ago, BenTheMiner said:

You can find the fonts at https://www.nyctransitforums.com/topic/43376-r142r142a-background-font-templates/ though there are some inaccuracies

Update: Looks like you found it just before I posted it!

sorry, thanks for the help though. I can't tell if all of these segments are necessary, I wish I could have a clear reference. Its not much but I found a website where I can share the model so far: https://thangs.com/m/12000. I might drop this project since I do not have the means money or energy to finish this, maybe someone else here might find it useful.

is it possible to include to include the "█" as reference to see what these displays look like when they are completely on?

I think I am just trying to model the route tile, I think it looks the most aesthetically pleasing. could you tell me where I could find the font if you know? here is my progress so far (https://imgur.com/a/w1ngIpM) though I might abandon this project (I don't have the means to do much beyond some light 3d modelling since I am using linux and have no time, money or 3d printer) it still seems interesting.

made an instant.io link. it works if we are online at the same time, and I am seeding. https://instant.io/#1ceb3366d7409b62af84aae6e913befbe0f41adb

I have been looking into the R142A Mosaic LCD, I think its a really interesting and unique display. I started making some cad designs to try to replicate the display with addressable LEDs. I don't know if I have the energy money or motivation to continue the project, but I wanted to share what I have and learn more about this unique display. reference photos and fun facts appreciated. 

actually I am new to the forum, and I am unsure how to share these CAD files on here so I guess the best I can do is an image of the sketch I made on freecad. I also have some old cad stuff I made on solidworks but I don't have an easy way to pirate a copy and then install it on linux. :(. I put the files up on volafile, they will expire in 2 days but its the easiest way I could think of for now. https://volafile.org/r/1mw4h567r