Complete with built in fan for drag.

Quote from: tinman on September 01, 2023, 07:18:43 PM
Those neo magnets will do the job just fine.
The idea here is to spend as little as possible, and use what you have lying around...

Great. A few parts have arrived, the power unit and such. I'm still searching for a wheel. The one that arrived turned out to be aluminium and not steel as described in the add.

Going to try a Wheelbarrow wheel next. Those usually aren't aluminium.

I've looked at some cast iron flywheels. I've heard those can explode at high revolutions since the metal isn't made for spinning that fast. I've never built a pulse motor so I'm not sure if we get up to such high speeds or not.

Hi MagaProp,


I think your concern is a bit misplaced at the speeds we will archive.

QuoteThe maximum revs of cast iron flywheel depends on the type of flywheel and its intended use. Gray iron flywheels can be used as a stock replacement and in mild builds, but should never be associated with racing, high horsepower, sticky drag radial tires, or engines that operate beyond 6,000 rpm[/font][/size]1[/url][/color][/font][/size]. [/font][/size]High-velocity flywheels can have a velocity between 30,000 rpm to 80,000 rpm, and can be adjusted up to 100,000 rpm[/font][/size]2[/url][/color][/font][/size].[/font][/size]
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[size=78%]Ron [/size]

I agree with i_ron.  My experience with this motor is you will probably see speeds of between 400 and 600 rpm depending on you building skills and proper tuning.


Carroll

Thanks i_ron and citfta for the info. I'll try to get something working first then worry about breaking the sound barrier with the speed.

I received this white wheelbarrow wheel today. A magnet sticks to it so that sounds good. The rim is about 8.5 inches diameter and the solid rubber tire was easy enough to cut off with a long box utter and wood chisel I have. It's a wheelboarrow wheel so the bearings aren't exactly super smooth but hopefully we can get it moving. Now to find a way to attache the little metal part to this rim.