Import and CUT out pattern

[freddy12]

Bergerud< I would like to try cutting out the mpc you have on post #18, I realize I would have to have 3.5 inches extra on each side of that. I would also like to make 1/16 inch passes, because I think the bit would break otherwise. For the final piece I believe I Will have to go with A 60 tooth, 12" dia. for the large gear and a 2" diameter small gear with matching teeth , that way I can keep my 6:1 ratio

[bergerud]

Ok, give this a try. I made it 1/8" per pass. You can change it to 1/16" if you want. (Most people would, I think, do 1/4" per pass.) I would just use piece of 12 X 20 MDF for the first try. Put some masking tape on the bottom for better belt grip. Use place on center. You could also scale it down if you wanted to use a smaller board.

[freddy12]

Thank you Sir: But I now have other problems, my machine which I just took out of the box is giving me an error message Y axis stall. When it rains it pours!!!!

[freddy12]

Well I cut the gear, there are some issues with it, I believe the bottom traction rollers are slipping not sure though. One side of the gear looks pretty good, the other half not so good. I will attempt to put up some pictures

[bergerud]

Did you put masking tape under the board? You should also check the head pressure with an old bathroom scale.

[freddy12]

I did not use masking tape on the baltic birch as it was pretty rough on the bottom, I should have taken your advice and used 1/2 " MDF I will try that tommorrow. Here are some pictures of what I am trying to make.
Keep in mind that this is just a rough mock up or prototype.

[FWMiller]

I use half inch Baltic birch a lot and need the tape. Even though it's not really smooth, the hardness makes it difficult for the brass roller to dig in and get a grip.

[FWMiller]

That looks like a cool project. Did you come up with it from scratch or get the electronics as part of a kit?

[freddy12]

I came up with the Idea from scratch, I scrounged all the parts from surplus stores or garage sales. the only thing new are the neo.s (magnets). This will be a teaching tool, for young people to learn how electricity is made. But also a useful device. The coils are wound so that the machine will start producing power at very low rpm. It has a 3 phase AC output, rectified to DC. There are 36 led,s above the gauges, and I can light them all very easily by barely turning the crank. Under a no load condition, I had it up to 15 volts@2 amps, pretty impressive for three small coils. But the gearing you see in the picture I cut by hand, and it is pretty uneven, which causes a lot of vibration. Thats why I am trying to cut them on the carvewright!

[CW-HAL9000]

Really nice.