HP E7 drive mechanism

HP E7 drive mechanism

Postby Rob M » Sun Apr 27, 2014 3:43 pm

The Kato HM-5 motor showed up Friday so I was able to get the E7 finished. The speed curve is almost identical to the SW1200 with the SW have a slightly faster top end speed. I ended making two weights to go over each truck, with each weighing just under 2oz and a total just under 3/4 pound.

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Re: HP E7 drive mechanism

Postby milwrd1 » Sun Apr 27, 2014 5:24 pm

Nice mechanism. Wonderful video to show the "speed match" between the E7 and the SW1200. Perhaps a kit someday :?:
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Re: HP E7 drive mechanism

Postby j p » Sun Apr 27, 2014 6:00 pm

milwrd1 wrote:Nice mechanism. Wonderful video to show the "speed match" between the E7 and the SW1200. Perhaps a kit someday :?:


If you want to fine tune it, the E7 has to run faster than SW1200. E7 is an express locomotive, while SW1200 is a switcher :)
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Re: HP E7 drive mechanism

Postby AstroGoat760 » Sun Apr 27, 2014 7:23 pm

j p wrote:
milwrd1 wrote:Nice mechanism. Wonderful video to show the "speed match" between the E7 and the SW1200. Perhaps a kit someday :?:


If you want to fine tune it, the E7 has to run faster than SW1200. E7 is an express locomotive, while SW1200 is a switcher :)


I do not think that is really an issue, as you can simply throttle the power going to the SW, as full tilt on the MTB SW is far faster than scale top speeds for the real SW's. I remember crunching the numbers during the 2013 NTS, I just need to find where my notes went to on that topic.
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Re: HP E7 drive mechanism

Postby Rob M » Sun Apr 27, 2014 11:36 pm

milwrd1 wrote:Perhaps a kit someday :?:


Very soon :thumbup:
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Re: HP E7 drive mechanism

Postby milwrd1 » Mon Apr 28, 2014 6:18 pm

Rob M wrote:
milwrd1 wrote:Perhaps a kit someday :?:


Very soon :thumbup:


Thanks Rob. Please keep us posted.
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Re: HP E7 drive mechanism

Postby AstroGoat760 » Tue Apr 29, 2014 9:54 pm

A kit would be nice, especially as an E7 power kit could be a springboard for quite a few other 6 axle diesel designs.
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