Mini 737 Overhead

[deft bluff]

Designed a mini overhead with everything you need nothing you don't for the pmdg 738. All 3d printed with no backlighting (maybe in the future). Such a fun project! Curious to what others think about it. Still missing the knobs for the dials but almost done!

Completed files here:
https://www.thingiverse.com/thing:7037507

[chrome fog]

Very nice!

[fervent oar]

Very nice! Are the stl files available? And could I know what switches, etc. you used? Thanks @deft bluff

[deft bluff]

@fervent oar No, I haven't made the files available yet. This is something I can work on slowly, there is a lot of versions i have made and the files are slightly messy.

This project is still a bit of work in progress. While the physical part is done and wiring the mobiflight coding is only half done

[deft bluff]

@fervent oar I am working to put the files together when I have them I will mention it here. If you go to the 3 dots at the top right in discord you can follow the thread to when I post comments you get notified

[fervent oar]

@deft bluff thanks for responding, how much filament will this use?

[deft bluff]

I used about 3/4 of a roll but I had lots of testing parts so I am gonna guess around half a kg

[fervent oar]

Thanks

[sacred marsh]

hello @deft bluff, the project looks really nice! i was interested to know when the files would be aviailable, thanks

[deft bluff]

I am working to put the files together when I have them I will mention it here. If you go to the 3 dots at the top right in discord you can follow the thread to when I post comments you get notified

I am really busy so I don't know when I will have them done

[patent copper]

hey man! any news?

[deft bluff]

I have posted the STL files on Thingiverse for those who are interested in the project. https://www.thingiverse.com/thing:7037507

This is a work and progress still, I will try and update as people have questions and I have time

@patent copper @fervent oar Your news has been answered, Thanks for the wait.

[fervent oar]

@deft bluff thanks a lot!

[deft bluff]

no problem

[fervent oar]

@deft bluff by the way, what cable were you using?

[deft bluff]

I use 22 awg for my wiring. See heli mech on this https://youtu.be/UfZuRajP19Y?si=wKGcOc_DgC7RXaal.

[patent copper]

Tysm!!!

[patent copper]

Awesome man, thx a lot! Appreciate it as i was trying to do that too for my sim ❤️

[deft bluff]

No problem

[fervent oar]

same here haha! is there any way you could send me a picture of your overhead panel when its done? thanks

[fervent oar]

thanks

[deft bluff]

The hardware is complete in the photos

I just am finishing the software right now.

[fervent oar]

yes, i was asking @patent copper :)

[patent copper]

@fervent oar yea no problem, though it wont be ready until probably 2 months 😅 i have lots of exam and a sailplane license to catch up to, ill try to finish it quickly though 😊

[fervent oar]

same haha, i still have to order some parts which take like a month to arrive😅

[deft bluff]

it took me the whole winter with work and activities haha so i feel that😅

[patent copper]

Got the gray pla, i'll start printing 👍

[unkempt barn]

started printing already and have most of the parts. what momentary switches did you use? ive got latching ones, just trying to find the right momentary ones on ali express. all the ones i can find are MOM-OFF-MOM rather than ON-OFF-MOM

[green elk]

@unkempt barnif those are 12mm then you can find them in our shop
https://shop.mobiflight.com/product/switch-12mm-panel-mount

[deft bluff]

https://www.amazon.ca/dp/B0BW7ZF24D?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2
this is one of the switch types I bought

Tons of diffrent configurations of these style of switchss in this size

[deft bluff]

pretty sure these are the ones i boughthttps://www.amazon.ca/dp/B07VHCB1Q4?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2&th=1

all the switches are the same form factor

[unkempt barn]

thanks for that

[patent copper]

Ty for the switches links Films! Started printing the panels 😁

@fervent oar

[patent copper]

@deft bluff could you send me the links to the hardware (especially switches you bought) plz? 😁

[green elk]

@patent copperscroll up the chat

[patent copper]

I am also looking for the arduino models etc so i still stand my question 😁

[green elk]

what do you mean by arduino models?

from the pictures BeProFilms shared, I can tell you he is using Mega 2560 R3., widely available on Aliexpress

[patent copper]

Still would like the links anyways 😊 if hes ok with it ofc

[green elk]

I'm sure he is 🙂

[fervent oar]

Very nice

[deft bluff]

the lines should be white too

[deft bluff]

If your having trouble with the electronics and not understanding 100% what's being used here, this may not be your best mobi flight project to try The wiring is pretty difficult because everything is so close together and there is a lot of cables, id highlighy recomend some prior experience with arduinos and mobi flight before attempting this project

Also this is still very much a protype so many things will need to be modfied to work and I know the guide is still very basic.

At some point I will complete this project and make full instructions and parts guide and improve the parts for easier building but for now its a work in progress

[deft bluff]

maybe in the future i dont really have links to the parts since I have a large collection of electronics from years of buying this stuff

[deft bluff]

the ones i posted above are exacly the size i used. however you can get them in many diffrent swith types.

[unkempt barn]

Found my local electronics shop had the momentary toggle switches I needed and had the other parts already. All that’s left is to wire it all up. @deft bluff I did notice the lower arduino mount stl is different to what you’d printed. There doesn’t seem to be a way to secure this version to the frame. Could you please share your other version.

[deft bluff]

damn that was quick

[unkempt barn]

Might reprint a few of the face plates. I took them off the printer a little quickly and they’ve warped a little

[deft bluff]

also can you sharing the knobs? its the one part i havnt made yet

[deft bluff]

I hate the way I made the mount especially since the way to connect the 2 halfs sucks a lot. Its gonna be redesigned at some pont. The STL should be exacly what I have.

[unkempt barn]

this one was a free one i found - https://www.printables.com/model/191429-boeing-style-medium-knob/files for the volume and brightness. for the engines i used https://cults3d.com/en/3d-model/game/737-knob.

i'd also found this one https://cults3d.com/en/3d-model/game/boeing-knob but would be usable with a hole added for a set screw.

[deft bluff]

cool thx

[unkempt barn]

this is what i meant about the difference. the opening where the screw holes should be.

[deft bluff]

fixed it and uploaded the correct part to Thingiverse. I just cut it wrong when exporting.

@unkempt barn curious on what your thoughts are on this so far? look like your failrly far into the build?

[unkempt barn]

liking it so far thanks. layout and fonts for the front panels are great, printed well with the 0.2mm nozzle on my Bambu A1.

[deft bluff]

.2 nozzle would be nice. I only have a .4 and it was annoying

[fervent oar]

very nice. did you print the text with white filament or did you paint it?

[patent copper]

too broke for multi, using a posca marker

[fervent oar]

same haha, when are you starting with the wiring?

[fervent oar]

and i must say, you were quite fast with this lmao

[patent copper]

yikes, we dont talk about that

aint got the money for the arduinos etc yet

[fervent oar]

same here😅 i don't have the (ON) off ON switches etc

[patent copper]

I'm doing it with my father who's got experience, worry not 🙂

[fervent oar]

only ON-OFF, ON-OFF-ON from my crappy old overhead panel that i have right now

also, which M2, M3, M5 did you use ?

[unkempt barn]

When you slice the front panels you can set a pause at layer so you can manually switch filaments. Used to do that often with my ender 5 before I got the bambu.

[patent copper]

Not worth it since i bought a posca but thats good advice thx

[patent copper]

@unkempt barn hey man! Are you using the arduino mega R3 or the Pro mini?

[green elk]

On the photos there are Mega R3 but Mega Pro Mini has exactly the same amount of pins. The only difference is footprint

[unkempt barn]

I’m going to use the mega r3 with shield. Trying to decide if I use 2 like the original design or try get it on one using some shift registers.

[deft bluff]

yeah the mega r3 with the sheild board to solder too is a time saver

@fervent oar @patent copper This project was the reason this design took so long to get the stl files out. I got a little carried away on it😅 https://discord.com/channels/608690978081210392/1374567873342734346

[fervent oar]

Ohhh wow 😮 looks great

[fervent oar]

Do you guys perhaps have a link for a rotary switch used for the engine start switches? Thanks

[unkempt barn]

they are an RS26. i had some 12 position ones spare id bought from aliExpress. you really only need 4 position ones. something like https://www.aliexpress.com/item/1005007465561386.html?spm=a2g0o.productlist.main.1.5c506Ve86Ve89v&algo_pvid=5c1c6a39-217f-41fa-a5c2-de6dbd5e7507&algo_exp_id=5c1c6a39-217f-41fa-a5c2-de6dbd5e7507-0&pdp_ext_f={"order"%3A"139"%2C"eval"%3A"1"}&pdp_npi=4%40dis!AUD!2.34!2.34!!!1.50!1.50!%402103244617492664164274577eb968!12000040869142999!sea!AU!2220945083!X&curPageLogUid=JZSgRvQJ5b4F&utparam-url=scene%3Asearch|query_from%3A

mine are the "full axis 20mm" shaft ones

[deft bluff]

you can get 12 pos ones that can be limited to 4 positions with the metal ring like the ones i used

https://www.amazon.ca/WGCD-Position-Selector-Rotary-Switch/dp/B07HHYW97B/ref=sr_1_1_sspa?crid=3FYK97RC2BJ1I&dib=eyJ2IjoiMSJ9.rUglXhPdoEXmknxoOKq31FawiThpDzBizFLmabd4GC7y7JEXIt5Z4XMsC-vjIP-djCTegWGDeZ09A_1_2Pku3hoxBU30xLFYg-lLXTIJXCZv5bucdCj2FNUMcimyudEMk0_rMH7vrIzcMrTy4H4idK-rXqFQQz03W5z5cKYKSmkTwtw-47KgLrczXKkPX57Gpg30B5doK8Qnl86jFtOBuGpVJm7gwYVoZ1Ktw1dflVLHCWAUhSEGMaKYQhbJaR1dqhEmD43P3JoAVqCn_11V5wUki3pi3RHrDeUgdXvZE3w.vZQxw97iB5uPbj7jlf4f3vSkrOCkdsrYytuwTUNd2gY&dib_tag=se&keywords=12+position+rotary+switch&qid=1749602315&s=industrial&sprefix=12+position+rotary+swtich%2Cindustrial%2C179&sr=1-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1

something like this^

[astral summit]

What printer are you guys using? I’ve never gotten good prints with my ender v3 se

[unkempt barn]

Bambu a1 with AMS and a 0.2mm nozzle. Haven’t turned on my ender 5 plus since I got the bambu.

[astral summit]

Nice. I might have to get one. Looks great

[fervent oar]

where do you buy the 6digit 7segment display? i'm about to start the overhead project finally... scared that shipping will take months

[lament field]

I bought some from Aliexpress. If using Max7219, make sure they are common cathode.

They were bare 6-digit clusters

[astral summit]

I've been printing the panels from Thingiverse

[fervent oar]

which kind of screws should i use to attatch the plates to the frame?

[astral summit]

There’s directions in the folder. It says either m2 or m3. I haven’t mounted them yet. So I’m not totally sure.

[deft bluff]

I am build it using a TM1637 6dig https://www.amazon.ca/dp/B0CH8ZLM3M?ref=ppx_yo2ov_dt_b_fed_asin_title and its a M2

[fervent oar]

Thanks!

[queen estuary]

@unkempt barn Hi do-you accept to share the *.mmc file?
Many thanks nice job

[unkempt barn]

i was quick to print and assemble mine but ive still not gotten around to wiring it up and create a config sorry. hopefully @deft bluff is able to share their config.

[deft bluff]

I haven't even touched mobiflight yet for this project. I have only finished building it and wiring it. Hopefully this winter I have some time again to finish it up.

[astral summit]

Why not learn to create it yourself so you know exactly which pins to which switch

Mobiflight is very easy to configure

[queen estuary]

Why i was interested to your mmc file it is also because i do not fond the method to use with a switch FLT LAND segments to display Land and FLT altitude.
So if BeProFilms or Dudefromoz Do-you test it?
Steenos i agree with you only a problem to configure this function Switch=> commute to FLT and Land
and it is difficult to find method
i am going to open my thread in ⁠mobiflight as said Tuomas from MF
Thanks all guy

[deft bluff]

this requires a logic statement, it needs to check what the condition is of the switch to decide what to display. this can be done from what i remeber by setting a variable to the switch 0 and 1 and then using that variable in the output of the screen.

I haven't tested this yet, but it was what i planned to do when i was designing it.

also, if you guys find the sim value for the display please put it here, i don't want to dig to find it

[queen estuary]

Many thanks for answering I tried something like that but not work today
About Fsuipc offset.
FLT alt ==> 0x656C
Landing Alt ==> 0x6572
I Suppose that you have this file FSUIPC Mapping
and also from JaimeLeon
Pressurzation system FLT ALT display: Offset 0x656C char(6)
Pressurization system LAND ALT display: Offset 0x6572 char(6)
https://github.com/MobiFlight/MobiFlight-Connector/wiki/MSFS2020-PMDG-737‐700-List-of-Events-that-require-use-of-FSUIPC7
if I have success i post here my result

[obtuse veldt]

Have you had any success with the Cabin Alt displays?

[queen estuary]

HI castle59 not realy because I used for my Overhead Two 7 segments digit.
You can see mine here and I put also explanation of Neil to explain the similar method with COM.
Personaly it is a little bit more complicated and i do not try it.

https://discord.com/channels/608690978081210392/1399014847433281657

[obtuse veldt]

Ah ok. I have made a temporary panel, using two 5 digit and an arduino. Used fsuipc offset (0x656C and 0x6572) with value type "String". Works fine

[fervent oar]

@patent copper how’s the project going?

[patent copper]

I realised id be better off making my own panel and have started designing a few days ago, its not gonna be pretty or full fidelity but im gonna add the essentials 🙂

Also switched from msfs2020 to xplane so ive been settings things up for a while