Goal: to have a retractable microphone descend from the attic with limit switch using easy to get parts for future repair by anyone who takes over when Im gone. I would like to keep this project under $100 because if at that price I could buy an electric hoist and where is the fun in that?
Plus: variable-speed / everything running on A/C power
Situation: attic in Texas can reach 150° degrees which is where the motorized spool is going. I got the spool with cable ready to go. It lowers and rises just fine.
I will be standing 60 feet away plus ceiling height of around 15' which is where I want to have the switch. I would like to add a limit switch so it turns off going up but still go down.
Problem: I was thinking of using a reversible drill but I cant figure out how to wire in the limit switch. Any way I do it creates an open circuit and drill wont reverse. Also I think I need to replace the switch because I am assuming if I run 70' of cable to and from the drill the circuit board in the switch will burn out due to distance.
Alternate: I was thinking taking apart an rc car and taking advantage of the wireless motor but I dont think the circuit board and motor can take the heat of the attic.
harborfreight 3-8-eighth-inch-variable-speed-reversible-drill part # 3670\
Plus: variable-speed / everything running on A/C power
Situation: attic in Texas can reach 150° degrees which is where the motorized spool is going. I got the spool with cable ready to go. It lowers and rises just fine.
I will be standing 60 feet away plus ceiling height of around 15' which is where I want to have the switch. I would like to add a limit switch so it turns off going up but still go down.
Problem: I was thinking of using a reversible drill but I cant figure out how to wire in the limit switch. Any way I do it creates an open circuit and drill wont reverse. Also I think I need to replace the switch because I am assuming if I run 70' of cable to and from the drill the circuit board in the switch will burn out due to distance.
Alternate: I was thinking taking apart an rc car and taking advantage of the wireless motor but I dont think the circuit board and motor can take the heat of the attic.
harborfreight 3-8-eighth-inch-variable-speed-reversible-drill part # 3670\
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