Quote:
Originally Posted by scream1973
Do you have any pics of how you mounted the mechanism?
This would be a great idea for my organ.. (next year project) too many others on the go for now
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Not sure if this answers your question or not but here goes:
First we measured the space under the keyboard where the mechanism is going to be placed. In this photo you can see that we used an electric screwdriver motor at first. But the speed was too high and we couldn't adjust it.
The mechanism is a piece of pvc pipe with two stoppers at the end with holes in them. A metal bar goes thru the middle. The pipe is then mounted on a holder that Pieter made from some scraps of wood. We then lined up the pipe with the back side of the keyboard to mark where the screws needed to be to push up the 'targeted' keys. Once again this is our first model with the screwdriver running it.
Pieter remembered that he had another motor that he had salvaged from an old printer at work. He replaced the screwdriver with this motor.
The metal rod didn't line up properly with shaft/axle from the printer motor.
So he bought this connector at the hobby/model shop. I have no idea what its called in English but its used when two shafts/axles don't line up in order to let them operate properly. It cost 10 euros. Most expensive part of the mechanism.
Then we screwed the mount with the pvc pipe and motor on it onto the panel under the keyboard. Making sure we measured where it need to be in order to hit the right keys. Then we put the keyboard back up and when the thing turns the screws push the keys up to the level of the other keys. We raised the keys that weren't being played by setting small washers under them.
Those are all the pics we have. If you still have questions, ask and I'll see if I can answer them.
MsM