Have to let you in on a Secret!

Humper

  OK, question.  TB has been trying to explain this to me for many years. 

 I have limited use of my left hand, don't know how hard or soft I'm holding something, but it still works. I can see the 'picture' of what to do but without the 'feeling' in my hand, how do I overcome being able to roll and fold things?

I have no idea how useful (or not) it may be to your situation, but the only suggestion I can offer comes from a time I was dealing with a several-fingers injury to my right ('good') hand.

I was able to use a fairly heavy-weight metal ruler as a straightedge...holding it down with the injured hand...to make some fairly precise straight folds. I also do much of my 'curling' of pieces, even without injury, using a metal tablespoon against a flat rubber eraser. (This allows some measure of 'compound curves' or 'cupping,' depending on the thickness of the paper.)

That's about it as far as my personal experience. Hope it's at least some help.

  OK, question.  TB has been trying to explain this to me for many years. 

 I have limited use of my left hand, don't know how hard or soft I'm holding something, but it still works. I can see the 'picture' of what to do but without the 'feeling' in my hand, how do I overcome being able to roll and fold things?

All of the above, and how! 

Plus...paper/card is a great medium for 'fiddling.'

Got that 'dream' project that you know you'll want to scratch-build, some day...but you're not sure of the best scale, or exactly where to start, or how to conquer that one (hope it's only one) really tricky stage or assembly? The project that keeps getting put off (tick...tick...tick...) because you're afraid to sink a bunch of capital into materials you're equally afraid you'll end up not using?

Try paper, and something as simple as white glue. Great for turning those grand concepts into 3D reality without blowing the rent. Easy to try 3 or 4 (or 5, or 12) different approaches to find the best one, for almost zero cost and surprisingly little wasted time.

Perhaps best of all...it gives those old 'problem solving' grey cells of which TB speaks a great '20-minute workout' that even slapping together plastic parts can't compare to. The satisfaction of creating some respectable replica of something that literally didn't exist before has to be experienced to be believed.

And...it's FUN!