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Forum: 70. Control Systems Sun 26 June 2011, 06:07
Replies: 333
Views: 340,110
Posted By JamesJ
Red, I ended up getting a pcb patterned after the...

Red, I ended up getting a pcb patterned after the circuit that appears earlier in this thread and I am thrilled with it's performance. I had to change the logic chip in order for it to work on the...
Forum: 70. Control Systems Sun 26 June 2011, 05:24
Replies: 333
Views: 340,110
Posted By JamesJ
Red, I had, incorrectly, assumed that it would...

Red, I had, incorrectly, assumed that it would work with the PMDX-122 board. As soon as I paralleled two sensors it quit working correctly. What board are you using?
Forum: 70. Control Systems Sat 18 June 2011, 21:09
Replies: 333
Views: 340,110
Posted By JamesJ
Tks, John. I had not considered that he would...

Tks, John. I had not considered that he would design for seeing targets instead of always seeing metal. By wanting to be able to sense the gantry lifting in addition to the home/limits I had to use...
Forum: 70. Control Systems Sat 18 June 2011, 11:31
Replies: 333
Views: 340,110
Posted By JamesJ
John (Zigmart) had some boards made based on the...

John (Zigmart) had some boards made based on the scematic in post #38 of this thread of which I purchased one. For whatever reason my proxies (AECO NPN NO purchased at factorymation.com) would not...
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