my Dremel powered propeller bullnoser...

my Dremel powered propeller bullnoser...

Unread post #1 by JojoD818 » Wed May 18, 2016 6:55 pm

I have a lot of regular 6" props and I want to use it for a smaller drone project that only fits 5" props. So instead of buying new 5" bullnose props, I made this Dremel jig to cut my 6" pops to 5" bullnose props.

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Re: my Dremel powered propeller bullnoser...

Unread post #2 by timber715 » Wed May 18, 2016 7:28 pm

Hehehehe
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Re: my Dremel powered propeller bullnoser...

Unread post #3 by JojoD818 » Wed May 18, 2016 7:35 pm

do I win anything? hehehe :clap:
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Re: my Dremel powered propeller bullnoser...

Unread post #4 by bigfoot » Wed May 18, 2016 9:23 pm

So its like a circle cutting jig.
Your cutting tools is only as good as your sharpening system.
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Re: my Dremel powered propeller bullnoser...

Unread post #5 by JojoD818 » Thu May 19, 2016 1:15 pm

Yes it is indeed. The prop is "pivoted" (with the necessary shim for that snug fit) via screw. All I need to do is carefully rotate the 6" prop and after a few runs, out goes a 5" bullnose prop.

A little cleanup and prop balancing and it is race-ready.
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Re: my Dremel powered propeller bullnoser...

Unread post #6 by nick » Fri May 20, 2016 10:55 am

@ Jojo
I just hope that the props will still do its job efficiently. :)
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Re: my Dremel powered propeller bullnoser...

Unread post #7 by JojoD818 » Fri May 20, 2016 5:34 pm

nick wrote:@ Jojo
I just hope that the props will still do its job efficiently. :)



Hi Nick,

For racing purposes, especially those "punch-out" moments, efficiency is the last thing on my list. :lolno:

Bullnose props has the most thrust/revolution than any other profile out there but at the expense of thrust/W. This may lead to shorter flight time and a larger demand for power on the motors. In short, we trade efficiency with brute lifting power. :thumbup:
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