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  #1  
Old Sat 04 June 2011, 13:24
zigmart
Just call me: John #112
 
Phoenix, AZ
United States of America
Proximity Sensor Boards

I bit the bullet and had 3 of the Proximity Sensor Boards that Richards designed here.

As I only need 1, I will be selling the other 2, I also have the screw terminals to fit the board.

$25 shipped in the USA

John
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  #2  
Old Sat 04 June 2011, 19:48
JamesJ
Just call me: Jim #104 (retired)
 
Kansas
United States of America
PM'ed you.
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  #3  
Old Sat 04 June 2011, 22:59
zigmart
Just call me: John #112
 
Phoenix, AZ
United States of America
1 left
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  #4  
Old Sun 05 June 2011, 16:58
aussie_mick
Just call me: Mick
 
Nowra
Australia
How much to send it to Australia?

Mick
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  #5  
Old Sun 05 June 2011, 18:49
zigmart
Just call me: John #112
 
Phoenix, AZ
United States of America
It would be $40 including shipping to Australia.

I wont send it any other way then global priority as I have had really bad luck sending things internationally any other way.
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  #6  
Old Mon 06 June 2011, 15:37
aussie_mick
Just call me: Mick
 
Nowra
Australia
Sounds Good. I'll take the last one off your hands. Now just have to figure out how to pay for it.

I will try and PM you later to get more details if you don't PM me first.

Mick
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  #7  
Old Sat 18 June 2011, 11:19
JamesJ
Just call me: Jim #104 (retired)
 
Kansas
United States of America
FYI: I found that one of the runs on the board was incorrect and had to cut it in order to fix it. Pin 5 of U6 is connected to +5 vdc and should not be. This causes the signal for Proxy #2 to constantly be active. After correcting that I also found that U9 and it's associated AND logic would not work with my proxies (Aeco, NPN NO) that I purchased from factorymation.com. Fortunately I was able to substitute a 74LS32 TTL chip for U9 which uses OR logic and it works beautifully now.

Also, I have not setup my A-axis so I made a short jumper and put between pins 2 an3 on that proxy's connector. This allows the other proxies to work normally.

It's great to see the machine home itself. I set the proxies up as home and limit switches to prevent hard crashes into the stops. I convinced myself of the need after having "senior moments" where I drove the axis into the mechanical stops.

John, thanks for taking the time to get the boards made. Hope this helps you avoid any problems.
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  #8  
Old Sun 19 June 2011, 19:42
JamesJ
Just call me: Jim #104 (retired)
 
Kansas
United States of America
John,
Here is a picture of the pcb. The circled area is where the trace has to be cut.

Hope this helps.
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