Help with science project

Armando

Hi,

I am working on a science project that will use a Basic Stamp II to hammer a nail into a piece of wood.· Do any of you have any good suggestions on a inexpensive device (pneumatic?) to·give the·up/down motion for the·hammer to pound?· The goal of the project is to have someone start the nail and then the 'robot' would finish pounding it in.· Any information that you are willing to share to help me with this would be very much appreciated.· Thank you in advance.

Have a nice day

Bean

Just off the top of my head, I would use a motor to turn a cam to lift and drop the hammer.

Terry

Armored Cars

I dont think you will find a cheap solution, I would check some robot sites that supply parts for battle bots they have powerful and compact actuators.
Just curious, what grade level is this and what·are you trying to prove?·

AlWilliamsAWC

I would think outside the box for this one. In particular, I think I would make a gantry that had a heavy cylindrical weight. This would go over the nail. The top of the weight would have a string attached to a pully at the top of the gantry. You'd wind the string up until the weight makes contact with the top of the gantry (switch closure). Then you'd release the string (you'll need a clutch to do that). The weight falls with the force of gravity and strikes the nail. The gantry keeps it on target. Then you engage the clutch, wind up the string, and do it again until you sense the weight touching the bottom of the gantry.

The gantry would be would two metal pieces and some insulating material (wood or plastic), so when the weight connects both sides you'd be able to sense that electrically very easily.

The hard part would be the clutch. Some of the RC hobby stuff should help.

Of course, not as much force as something driving against it. Other ideas would be to use a powerful solenoid directly as the hammer or as you suggest some sort of air hammer but that's out of my league.

Regards,

Al Williams
AWC
http://www.awce.com
·

Chris Savage

I'd use a nailgun!· Hehe, okay, too original, I know...Is this something for demonstration or for practical use?· IOW, is it something that will be doing work for a human?· Or just for a display/project?



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