jblack155

Hello, Where can you buy a potentiometer that can be mounted directly on the shaft of the motor? Usually these motors have a 1/4" dia shaft protrusion at the back end, where the optical encoder is mounted. Can you take the encoder off and put a potentiometer in its place? The reason I ask this is that I have figured out how to do forcefeedback and auto centering using the signals from an optical encoder, but I don't know how to simultaneously send a duplicate copy encoder signal to the desktop PC and have it show up as a joystick.

Hello, My PCB board has 9 resistors of 1KOHM and 10 resistors of 10KOhm. Unfortunately they are all marked R1 thru R19, and I dont know which is ,1 and which is 10. I looked at the diptrace file, and it does not have an Ohm values. Is there some way I could figure out which is which, by looking at where it goes, or something else?

Thanks, I have the symbol on the left, but which end is the negative? the top rounded/chamfered end or the bottom/square end?

Hello, On the PCB board, how do you tell the anode and the cathode ends of a SMD diode? My PCB has a silk screen marking of a rectangle with one end rounded and other end sharp corners. Which end is the cathode?

Is there anything like an encoder with 2 concentric shafts? How does boeing make that MCP rotary switch with an inner ring and an outer concentric knob for the HDG and bank limiter?

Hello, I am trying to build a MCP. I got past the circuitry, PCB and components, but I have no experience in engraving plastic. I have a .dxf file with all the lettering, and lines etc. Question: What is a suitable plastic material or substrate which can be used to engrave the letters and numbers for the MCP panel? I want to be able to use the backlit option at night, and I would like a Boeing 737blue, or as close to it as possible. Can someone point me in the right direction please? BTW. How does this "image from URL" work? I tried to upload a picture of what I am looking for, and no luck. How do I make my picture into a url?