Planning power feed

[Kbeitz]

The inside of a limit switch is a micro switch with common  NC and NO
(normally open and normally closed). Spring loaded so yes they
return to normal when the load is removed. My spring travel is around 12".
It depends of the load and how fast the travel to know what you may need.
You can also increase the size of the spring. You can pull back the spring
with your hand to get it to travel all the way to the end. I like my limit switches
the most on the up and down of the carriage more than anything. Sometimes
I forget that I sent the carriage up when I tell the carriage to return home.
I can just flip both switches and go do something else like load another log
and it will be there waiting for me. The carriage will be home and up all
ready.



 

[Kwill]

The stop is spring loaded to cushion the stop. Since you bought relays you can
just wire the limit switch in series with the relay. One relay for each direction.
The switch will shut down only one relay so you can still move the other way.



 

does the pulley and the cable drive you mill

[Kbeitz]

[/quote] does the pulley and the cable drive you mill
[/quote]

Yes...

[Kwill]

does the pulley and the cable drive you mill
[/quote]

Yes...
[/quote] what keeps it from slipping

[Kbeitz]

[/quote] what keeps it from slipping
[/quote]

Don't know. The only time I ever seen it slip is when I hit something
like my overhead crane that doesn't move. I cant stop the carriage with
my hands.

[Kwill]

I'm wondering about using a trolling motor and controls for a feed motor. Only problem I can think of is maybe overheating since they are sealed and made to run in water which would cool them. Any thoughts?

[Kbeitz]

I'm wondering about using a trolling motor and controls for a feed motor. Only problem I can think of is maybe overheating since they are sealed and made to run in water which would cool them. Any thoughts?

Mounting might be a challenge.

[rrleesb]

I've made some great progress with my power feed.  I have it all working and am happy with it's operation.  Now I've been working on my control panel and have had a few problems.  I purchased some 12v to 24v up-converters rated for 240w.  Did that after I realized that my motors were rated for a max of 575w.  With two of the up-converters in parallel they will still barely move my sawhead up and down.

Should I just purchase the 40A 1000w up-converters?

[Kbeitz]

It might be just as easy to replace your 24v gearmotor with a 12v tarpmotor.