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Post by dynomike on Jan 17, 2022 10:38:45 GMT -7
The Mega G+ can motor is a 14 ohm motor. So a higher ohm motor should be faster. If you set it up right. I hope this helps. I thought a lower ohm arm or motor would be faster. Please explain. |
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Post by dave632 on Jan 17, 2022 13:21:03 GMT -7
Yes, lower ohm motors are usually faster when magnets and the rest of the chassis is set up well.
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Post by Eagle Racing on Jan 17, 2022 14:07:34 GMT -7
Yes, lower ohm motors are usually faster when magnets and the rest of the chassis is set up well. |
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Post by Eagle Racing on Feb 25, 2022 10:21:09 GMT -7
I thought it would be fun to make my own armature. So I found the shafts in 1 7/8's length. Then I found the PCB board. Both items were found on ebay. Then I designed my com. Here is a photo of the finished com compared to a factory com. Next up are the laminations. This will be the hardest part no pun intended....😊...They are made of steel. Not just any type of steel though. They are electrical steel laminations or Silicon Steel which has silicon added to it. This increases its electrical resistance and improves the ability of magnetic fields to penetrate it. Man I sound smart.... ...not really I looked it up, lol. Now, I could not find Silicon Steel to purchase in DIY volume. So plan B what is the next best metal to use. That I could purchase in DIY low volume, galvanized steel. My research on metals says it also has electrical resistance properties. That improve the ability of magnetic fields to penetrate it. The big plus here is it is cheap and easy to get.
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Post by AJR on Feb 25, 2022 11:40:13 GMT -7
I thought it would be fun to make my own armature. So I found the shafts in 1 7/8's length. Then I found the PCB board. Both items were found on ebay. Then I designed my com. Here is a photo of the finished com compared to a factory com. Next up are the laminations. This will be the hardest part no pun intended....😊...They are made of steel. Not just any type of steel though. They are electrical steel laminations or Silicon Steel which has silicon added to it. This increases its electrical resistance and improves the ability of magnetic fields to penetrate it. Man I sound smart.......not really I looked it up, lol. Now, I could not find Silicon Steel to purchase in DIY volume. So plan B what is the next best metal to use. That I could purchase in DIY low volume, galvanized steel. My research on metals says it also has electrical resistance properties. That improve the ability of magnetic fields to penetrate it. The big plus here is it is cheap and easy to get.
That right there is SICK!!! |
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Post by Deleted on Feb 25, 2022 11:47:55 GMT -7
interesting that you want to create your own lams, and laudable.
impressed with the comm also.
do you think you can produce lams less expensively than buying them for OS3?
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Post by ecbill on Feb 25, 2022 13:07:57 GMT -7
Laminations for 36D armatures used in larger scale slot cars are dimensionally similar to our HO pancake lams. You may be able to source some of them.
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Post by Deleted on Feb 25, 2022 14:55:19 GMT -7
Laminations for 36D armatures used in larger scale slot cars are dimensionally similar to our HO pancake lams. You may be able to source some of them. interestingly, there are model trains that have similar lams. I even got a couple that fit into Xlerator chassis, but they are not built for speed. |
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Post by Eagle Racing on Feb 25, 2022 15:37:59 GMT -7
Thanks for commments: alpink no I can not produce cheaper than mass produced. That is not why I am doing this. It is just for fun and I have never milled steel. I have learned a lot already just by milling a comm. Learning what the software can do in the milling process is a big deal. Stay tuned I will post more on this.
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Post by dave632 on Feb 26, 2022 10:28:43 GMT -7
Nice work on the comms.
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Post by skillet on Feb 26, 2022 15:02:09 GMT -7
Pretty sweet hope the arm works out
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Post by Eagle Racing on Feb 28, 2022 10:52:05 GMT -7
Pretty sweet hope the arm works out
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Post by Eagle Racing on Mar 2, 2022 11:35:19 GMT -7
Just a few projects I have going on. I did six new castings two road race and 4 drag cars. Here are the photos of the drag cars. The AMX I am redoing the roof as I don't care for the t-top look. The 55 Chevy Nomad I reworked the bumpers. The Camaro and Chevelle I cast them without the factory mounts so I could use it on different chassis.
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Post by ecbill on Mar 2, 2022 12:42:28 GMT -7
Nice! Nomad bumper looks much better.
Is the Camaro from a Mega G Afx?
Any plans to do the 71 Chevelle?
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Post by Eagle Racing on Mar 3, 2022 4:18:09 GMT -7
The Camaro and Chevelle are both from Mega G+. No plans right now to do the 71 Chevelle.
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...not really I looked it up, lol. Now, I could not find Silicon Steel to purchase in DIY volume. So plan B what is the next best metal to use. That I could purchase in DIY low volume, galvanized steel. My research on metals says it also has electrical resistance properties. That improve the ability of magnetic fields to penetrate it. The big plus here is it is cheap and easy to get.
