agrasyuk Posted June 15, 2021 Share Posted June 15, 2021 Here is a device I really wanted to build for very long time - fuel panel. Servo Driven, 0.91" OLED display, Interface via DCS-BIOS Hydraulic gauge details Front lit Front and Backlit "Visor" detail Fuel Gauge details Concentric needles Mechanisms panels Backlight test 3 Anton. My pit build thread . Simple and cheap UFC project Link to comment Share on other sites More sharing options...
Deadman Posted June 15, 2021 Share Posted June 15, 2021 looks good cheers https://www.shapeways.com/shops/a-10c-warthog-supplies https://forum.dcs.world/topic/133818-deadmans-cockpit-base-plans/#comment-133824 CNCs and Laser engravers are great but they can't do squat with out a precise set of plans. Link to comment Share on other sites More sharing options...
lesthegrngo Posted June 15, 2021 Share Posted June 15, 2021 Very nice! I have to ask how smooth the movement of the pointers is using servoes as it would certainly be interesting to see if it improves on the rather jittery movement of the stepper motors I am currently using. I also like the geared actuation of the fuel quantity gauge, I was thinking that I would have to go that route and seeing it done gives me motivation to go that route. Cheers Les Link to comment Share on other sites More sharing options...
agrasyuk Posted June 15, 2021 Author Share Posted June 15, 2021 thank you Deadman and Les! Les, movement is sufficiently smooth, I tested needle actuation with the "sweep" arduino example and didn't observe any jittters. I'm still working on full sketch, hope to post video of needles in motion soon. Anton. My pit build thread . Simple and cheap UFC project Link to comment Share on other sites More sharing options...
No1sonuk Posted June 15, 2021 Share Posted June 15, 2021 Very nice. I'm guessing laser or router cut? I've been thinking of going the servo route, but using 3D printed gears. Going that route means helical gears can be used to give reduced backlash. Link to comment Share on other sites More sharing options...
Hansolo Posted June 15, 2021 Share Posted June 15, 2021 Awesome work as always Anton 132nd Virtual Wing homepage & 132nd Virtual Wing YouTube channel My DCS-BIOS sketches & Cockpit Album Link to comment Share on other sites More sharing options...
agrasyuk Posted June 15, 2021 Author Share Posted June 15, 2021 thank you guys. no1sonuk, yes, this is all laser cut. I am considering getting a SLA printer, would love at some point to get into helical gears but not yet sure where to begin designing these. I've been FlatCAD guy so far. found good font for the OLED display and played with DCS-BIOS code for the 3 digits . I remember there was someone on this board who accomplished animated change of digits sliding up and down to simulate the number wheels. for the life of me I cannot find this thread. I would really appreciate any assistance with that if anyone can. If not I will settle for normal digit change. Anton. My pit build thread . Simple and cheap UFC project Link to comment Share on other sites More sharing options...
Vlad333 Posted June 15, 2021 Share Posted June 15, 2021 (edited) fuel.ino Edited June 15, 2021 by Vlad333 1 Link to comment Share on other sites More sharing options...
bnepethomas Posted June 17, 2021 Share Posted June 17, 2021 really nice work sir 1 Link to comment Share on other sites More sharing options...
Vinc_Vega Posted June 17, 2021 Share Posted June 17, 2021 (edited) Am 15.6.2021 um 21:46 schrieb agrasyuk: ... I remember there was someone on this board who accomplished animated change of digits sliding up and down to simulate the number wheels. for the life of me I cannot find this thread. I would really appreciate any assistance with that if anyone can. If not I will settle for normal digit change. Here it is for the altimeter with rolling digits: and a modified sketch Regards, Vinc Edited June 17, 2021 by Vinc_Vega Regards, Vinc real life: Royal Bavarian Airforce online: VJS-GermanKnights.de [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
agrasyuk Posted June 17, 2021 Author Share Posted June 17, 2021 thank you Vinc and Vlad! that is exactly the thread I was looking for. I thought I was subscribed to it. Anton. My pit build thread . Simple and cheap UFC project Link to comment Share on other sites More sharing options...
lesthegrngo Posted June 18, 2021 Share Posted June 18, 2021 If you want helical gears, I can make .stl files for you if you give me .dxf files of the flat gears Cheers Les Link to comment Share on other sites More sharing options...
agrasyuk Posted June 18, 2021 Author Share Posted June 18, 2021 I appreciate the offer Les, for now I have all the gears I will need . Eventually I will learn this subject - I prefer to have a fishing rod instead of giveaway fish as much as I can. I will be asking questions though Anton. My pit build thread . Simple and cheap UFC project Link to comment Share on other sites More sharing options...
No1sonuk Posted June 19, 2021 Share Posted June 19, 2021 (edited) On 6/18/2021 at 10:06 PM, agrasyuk said: I appreciate the offer Les, for now I have all the gears I will need . Eventually I will learn this subject - I prefer to have a fishing rod instead of giveaway fish as much as I can. I will be asking questions though I use Fusion360 for my design work. You can get a helical gear generator script plugin for it. I think it was a download from the Autodesk site. The only problem is that you'll need to 3D print them - you can't use a top-down milling process like a laser cutter. Edited June 19, 2021 by No1sonuk Link to comment Share on other sites More sharing options...
GearUpper Posted June 20, 2021 Share Posted June 20, 2021 Great work, well done!I had more success with stepper motors than with servos, the first I found them too noisy even sitting still - but maybe I need to understand them better For the OLED, my experience is that you should have a dedicated Nano just for one, otherwise you will get issues with whatever is connected there.Awesome job! Link to comment Share on other sites More sharing options...
lesthegrngo Posted June 21, 2021 Share Posted June 21, 2021 You can use one nano for both fuel quantity servoes / steppers and the fuel quantity oled because the refresh rate does not need to be high, the indication changes slowly. Things like the altimeter, VVI etc can't be on the same nano as the rate of change of those guages needs to be high, and there will be a lot less smooth movement of the gauge and flickering OLED indication, at least in my experience Les Link to comment Share on other sites More sharing options...
Vinc_Vega Posted June 21, 2021 Share Posted June 21, 2021 (edited) For the fuel gauge I use the ready made one from PC Flights, the two servos are connected to a 16bit driver board. The OLED display, I integrated, is at the same I2C bus like the servo board, both at the same NANO. Even when controlled over the RS485 bus (not USB) scrolling speed of the OLED is very fast. But that is only an eye catcher if you push the test button. Regards, Vinc Edit: I finally managed to upload a video from the gauge test Edited June 22, 2021 by Vinc_Vega video uploaded Regards, Vinc real life: Royal Bavarian Airforce online: VJS-GermanKnights.de [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
No1sonuk Posted June 21, 2021 Share Posted June 21, 2021 If you use the PWM pins of the arduino, the servo drive should be automatic - it's just the data refresh you need to deal with. Link to comment Share on other sites More sharing options...
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