Oscillating Reed Switch Pulse Motor.

[OrionLightShip]

Is this the "Erroneous Forum" you've been deprecating on over on the OU site?

Some of us get tired of the crap output level around here Allan.
It's not about you and is certainly nothing for you to take offense or issue with. It's all good. Carroll is one of the good guys.

[Allen Burgess]

Those look great Matt! Excellent workmanship as always from you. Glad you got that CNC machine working like it should.

Take care,
Carroll

Is this the "Erroneous Forum" you've been deprecating on over on the OU site?

[Allen Burgess]

Axle.

The other lightweight and strong axle material I tried was "Carbon fiber rod". "These rods are extremely stiff and lightweight and have a very low coefficient of expansion", ...

[Turion]

Rod

I sent you a 1/4 inch plastic rod made out of the HARD stuff. DOn't know if it will work or not. It's in the mail.

Dave

[Matthew Jones]

The most obvious drawback, compared to the internal ceramic bearings, is the addition of the larger 1/4" brass axle that has to turn along with the magnet tube.

LOL... You mean the 3 inch piece of OAK dowel rod I am going to substitute your brass rod with? LOL.. TO hell with dragging all that weight around. Not counting the 8 bucks to buy that thing.

All I need is 3+- inch's to make everything work.

@ Carroll. Thanks. I just about got everything working out with it. I wish I could find a half way decent 5 axis software so I could use it to fullest. I even got pipeline for circuit boards I just figured out this week so I can make boards as well.

Matt

[citfta]

Beautiful work Matt!

Those look great Matt! Excellent workmanship as always from you. Glad you got that CNC machine working like it should.

Take care,
Carroll

[Allen Burgess]

Mag bearings.

The most obvious drawback, compared to the internal ceramic bearings, is the addition of the larger 1/4" brass axle that has to turn along with the magnet tube.

[OrionLightShip]

Just a little update... I am working on this over the holiday and I am about done with the mag bearings.

https://youtu.be/L2Ha2buhLjs

Cheers
Matt

Wow! My first look at mag bearings was with skycollection's videos. This is so much more advanced! Really nice....bet that thing will zing

[Matthew Jones]

@Matthew Jones,

Awesome Matt! You manufactured those by hand? I hope they work as well as they look!

No I modeled them and cut them on the CNC. David (Turion) bought a CNC a while back and sent it to me because I have all the 3d / cad background. He's getting another sometime so I can just email him files to replicate. We both have the same 3d printer also, but neither one of us has put them together yet.

The bearings will work when its all done and assembled I am going to design up and cut everything today and the diametric will be here Tuesday. I have everything I need to put it together. I have ordered a tach but I don't know when its coming, but I can put a scope on it and find the rpms.

I'll update again before Tuesday.

Matt

[Allen Burgess]

Mag bearings.

@Matthew Jones,

Awesome Matt! You manufactured those by hand? I hope they work as well as they look!

[Matthew Jones]

Just a little update... I am working on this over the holiday and I am about done with the mag bearings.

https://youtu.be/L2Ha2buhLjs

Cheers
Matt

[Matthew Jones]

I am thinking of raising it. I have some 28 handy and at 185 foot you are right at 12 ohms. at 12.5 volt that gives you about 1 amp on the surge. 25 volt will net 2 amp and add about 65% more speed.

But I also have another motive and that is to see if the reed is faster than a transistor. Some one said they bet it was....who was that? We'll see. I know they are not faster than a hall switch. But we'll see about that as well.

Everything should come next week and I have all the design work done. I am going to try to get things milled and fit tomorrow and finish when the magnets come.

See ya then.
Matt

[Allen Burgess]

Ceramic vs Steel bearing comparison.

@Turion,

Check out this steel to ceramic bearing comparison video:

https://www.youtube.com/watch?v=X2KCs_lBKWU

[OrionLightShip]

@OrionLightShip,

Would it help to raise or lower the wire resistance to protect the .5 amp rated Reed switch? I never applied any math to the coil, just intuition. Maybe 26 ga is just right! I think it's a good idea to keep the diameter of the coil small.

Well, there are several parameters to consider here but I think the answer will be found on the bench and no one better qualified to figure those things out than Matt. I'm certain all of our questions will be answered once he has had time to put this together and given some time to run it.

[Allen Burgess]

Wire resistance.

larger the gauge.....smaller the wire diameter....higher the resistance

@OrionLightShip,

Would it help to raise or lower the wire resistance to protect the .5 amp rated Reed switch? I never applied any math to the coil, just intuition. Maybe 26 ga is just right! I think it's a good idea to keep the diameter of the coil small.