Badders46 Posted February 1, 2021 Posted February 1, 2021 Hi all, I am a newbie to panel making etc and I am hoping to make a switch panel, trim unit and fuel selector panel for predominantly the P-47 and I am struggling to find something suitable for the rotary 4 way fuel selector switch and the magneto switch and would be most grateful if someone could point me in the right direction. I will be using a Leo Bodnar board. Many thanks, Dan Sent from my SM-G950F using Tapatalk
Spitty Posted February 1, 2021 Posted February 1, 2021 All the late fighters used the A9 mag switch. https://www.ebay.com/itm/Aircraft-AAF-A-9-Mag-Switch-/153903302340
Badders46 Posted February 1, 2021 Author Posted February 1, 2021 All the late fighters used the A9 mag switch. https://www.ebay.com/itm/Aircraft-AAF-A-9-Mag-Switch-/153903302340Thanks ever so much but I was after a modern day switch from an electronic store but not sure what to look for.Sent from my SM-G950F using Tapatalk
Sokol1_br Posted February 1, 2021 Posted February 1, 2021 You need a rotary switch, e.g. http://www.leobodnar.com/shop/index.php?main_page=index&cPath=98_100 You can wire one these in BU0836A/X using only two buttons inputs and have incremental button press for right and incremental button press for left, like a optical encoder, but with a better "click" between positions. Don't know how controls of (DCS) P-47 was programmed (I had this plane from Kickstarter, but no will for install "betas" anymore), if each magneto position require a different button press, use the same type of rotary switch, but get one in eBay with at least 5 positions, so each position of switch will be wired in one of Bu-0836A/X button input, a wastage, but early MiG-21 rotary weapon selector was programmed in this way. https://www.ebay.com/itm/2x-1-Pole-12-Position-Panel-PCB-Wiring-Rotary-Switch-18-Teeth-Shaft-Adjustable-/293024869589
Badders46 Posted February 1, 2021 Author Posted February 1, 2021 You need a rotary switch, e.g. http://www.leobodnar.com/shop/index.php?main_page=index&cPath=98_100 You can wire one these in BU0836A/X using only two buttons inputs and have incremental button press for right and incremental button press for left, like a optical encoder, but with a better "click" between positions. Don't know how controls of (DCS) P-47 was programmed (I had this plane from Kickstarter, but no will for install "betas" anymore), if each magneto position require a different button press, use the same type of rotary switch, but get one in eBay with at least 5 positions, so each position of switch will be wired in one of Bu-0836A/X button input, a wastage, but early MiG-21 rotary weapon selector was programmed in this way. https://www.ebay.com/itm/2x-1-Pole-12-Position-Panel-PCB-Wiring-Rotary-Switch-18-Teeth-Shaft-Adjustable-/293024869589Thank you! I will check this out. Part of my trouble is I am looking for something quite specific that doesn't massively exist. It would be a waste as I believe that they are single buttons in the assignment list.Thanks for your help Sent from my SM-G950F using Tapatalk
No1sonuk Posted February 3, 2021 Posted February 3, 2021 I'm in the process of making some of these switches for the P51. My board the BU0836A and I have the matrix board fitted. I've used it for the 5-way P51 fuel selector I made. The way the matrix breakout is wired means the ROW lines can be used as a "common" connection for any multi-way switch up to 6 positions. The wiring I've used for the fuel selector is as follows: The common ground wire goes to one of the ROW inputs, and the 5 individual switch "outputs" go to the COLUMN inputs. Now in my case, that means buttons 1 to 5 on the Bodnar board correspond to the 5 fuel tank selector positions. As for the switch itself, that's complicated... I created this in Fusion360: It's basically a PCB with 5 microswitches arranged in a circle. As the handle is turned, a disc with a bump on the bottom presses one of the 5 switches. In the bottom section is a pentagon that turns with the shaft and a sprung arm that acts on the flats of the pentagon to make a 5-position detent mechanism. This is the switch PCB: I've altered the connectors since this was taken - in the image, it's wired for a board I made for a DCS-BIOS connection. It currently has connectors to fit the Bodnar board geometry. The selector is connected to buttons 1 to 5. These are the first 5 in ROW1. The fuel cutoff switch is connected to button 6 - the last in ROW1. I've used Helios for the interface. Not because it's required for the fuel selector, but because it's needed to make the fuel shutoff switch work in such a way that it turns off in DCS when the button is released and on when it's pressed. Without Helios, the switch turning on would change whatever state it was in DCS and turning the switch off would do nothing. An alternative option is to use DCS-BIOS for just the cutoff, or for all of it As for the magneto switch: I'm going to use a normal 12-position rotary with its limit tag set up for 4 positions. This gives the required 4 positions and 90 degrees swing. Then I'll wire it in a similar fashion to the fuel selector, making sure to start with switch 7, because that's the first switch in ROW2.
Sokol1_br Posted February 3, 2021 Posted February 3, 2021 (edited) Nice drawing, this remind me this: https://www.etsy.com/listing/828623520/gear-falcon-analog-selector-switch-4-or?ref=shop_home_active_16 The guy use just a potentiometer, what means in use Joystick Gremlin for divide this axis in 5 bands and send keypress for games in ech band. This rotary switch has models with 5 positions: https://pt.aliexpress.com/item/4000311858089.html Edited February 3, 2021 by Sokol1_br
No1sonuk Posted February 4, 2021 Posted February 4, 2021 The problem with using a potentiometer for the fuel selector is that unless you get a special one, you can't turn it past 360 degrees - most only swing about 270 degrees.
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