Need Wiring Help For 12 Volt Motor

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vtsteam:
Ugh.... just remembering that one of these joysticks is "momentary" (from first post) -- does that mean it's self centering? Probably.

In fact I'll bet they're both self centering --- yes? Typical 4 way switch joysticks, right?

Okay ditch the reversing joystick and the reversing relay and just buy a simple DPDT switch for direction. There's no point in a 4-way self centering joystick and relay for this!

And for the other, just rig up a momentary push button for fast traverse! You can do it with velocette's pot shorting method.

Add a RUN/STOP switch and you're done.

Then things truly are simple!

snub:
Thanks for all your effort, vtsteam. It is much appreciated. When I was a youth I could comprehend all of this but my 60 year old brain is not what it used to be. Those joysticks are a joy to use and that's why I wanted them. I was searching Ebay today and think I may have found some DPDT joysticks. Plan C is I will simply use some DPDT switches and add some long handles. I just hate buying new stuff when I already have a bunch of parts that need to be used somewhere.

Again, thanks to all for your help.

vtsteam:
No problem Snub, puzzles are fun, but sometimes you reach a dead end -- or at least I did.

The real problem was that spring loaded centering joysticks had no way to maintain a direction.

If center was forward, how would you put it in reverse without holding the joystick over? You need a detent at both ends of the throw, and no middle position -- like how a normal 2 position toggle switch works.

Fast traverse/slow cut would work okay with one of your joysticks, if you made the center position the slow cut speed, and one end or the other the fast traverse. Since that only needs to be momentary

But since you really have a 4 position stick you would have to waste 3 of those outer positions -- as either redundant, or having no effect. It's certainly do-able, but not what I think you wanted.

Ideally you would have a 3 position stick, not spring centered, that gave fast, off, and slow as the three positions. But it would have to stay in each of those positions, except fast, which could be momentary.

So the real difficulty was that the sticks were self centering. We can't make up for that with circuit changes. It's a mechanical problem.

DMIOM:

--- Quote from: snub on December 12, 2014, 02:34:40 PM ---These joysticks seem to be causing some confusion ( my fault ). They are 4 way joysticks with 4 separate SPST switches. They go left, right, up and down with center off. I am only using the left and right. All are normally open contacts......
--- End quote ---

IF the movement is constrained so only one switch can be operated at a time (i.e. only N, S, E, or W) by an irremovable " + " shaped gate then ignore this.

However, IF the movement is unconstrained and you can move it to any direction in a circle (in particular NE, SE, SW, NW) then here's a suggestion for the 'user interface' using just the one joystick:

UP (high) and right - High speed to the right
DOWN (low) and right - Low speed to the right
....and similar to the left

Dave

vtsteam:
Yes Dave, but with self centering joysticks you'd have to hang on to them throughout the cut. (also, I think this is only a single axis drive. The functions needed are ON/OFF, FWD/REV. and MILL/TRAVERSE.)

The only true "joystick" operation should be fast traverse. Let go of a stick and it stops. Everything else should be able to hold in position. It's a mechanical problem, not a wiring problem.

Imagine if a car transmission stick returned to neutral as soon as you let go of it.

The controls need to stay in position. That's the function of a bat switch, not a joystick.

The other function of either of these is to indicate intuitively what is going on. A forward handle should indicate forward travel, for instance. Or high speed, etc. Thus "blip and latch" electronic controls (like the volume button for a TV remote control) have poor user feedback when used for a machine drive. Handle position is extremely useful as an indicator, as well as a means for changing an operation.

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