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Just post it and it's here to stay.... :thumbsup WISHING YOU BEST,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,and:welcome

I'm good with electrical. That is why I asked about the limit switches. I would only know the operation of those linear actuators if I had one and tested its operation. In your case,,, if those do have built in limit controls, you can build two units and have one set of controls to control...

I think the factor was the cost in that . Copy,paste from above.... TOTAL COST: $75 - You can definitely get away with less if you have some parts laying around, for example the power adapter could come from an old desktop monitor. Which translates to making 2 units relatively low cash...

Nice job, but have a question,,,, I don't see any limit switches, in diagram or in your actual constructed door. What stops the actuator from wanting to keep going in direction of travel when gets to end of stroke. Are there automatic limits in actuator . When reversed polarity, then...