how to cut down props ?

[iridebikes247]

just wondering if there is any info out there on how to cut down props say from 65mm to 60mm. haven't done this before and im really curious what needs to be done to reshape a prop afterwards. thanks guys

[Savage Skidoo]

its hard form to explain right know , being whacked out after surgery , just cut down one blade , and make an imprint , then repeat it to the other side while keeping the balance , sharpness , and rake ...this will take time so don't rush .

[jonjon00]

p-m-2-c.pdf
I use 2mm polar graph paper glued to poster board. Center punch for a bolt to go through to hold the prop. This will help you keep your sizes accurate without spending a lot of cash.
I cut the whole prop to the size I want. Then like savage said I reshape one blade then make template to copy to the other blade/s.
PDF at the top is of the print out I use.

[ray schrauwen]

I'm lucky enough to have a small Taig lathe to make them smaller by thousands of an inch at a time.

[NativePaul]

I have used a lathe and it is probably the best way, but I don't have regular access to one and am normally doing other work to the prop too, I usually just extend my Dremmel cut up the side of the blade as I am cutting the tongue off, I measure and mark the tips, do both blades the shape I want trying to get them as close to each other as I can by eye, make imprints of both blades in a lump of play-dough to find the smaller then carefully match the bigger blade to it, then thin the blades, balance prop, final sand and polish, sharpen blades, final balance, and run.

[properchopper]

This handy gizmo helps in accurately measuring both blades to equal them out once cut down

DSC04804.JPG

[iridebikes247]

i like the caliper idea thanks guys. im going to try on a smaller prop eventually im going to have dasboata tune a set of props for me im really curious to see what kinda speed increase i get over the x457 with cut down x465s

[dasboata]

I use a home made sander with a digital read out I can cut down a prop in no time before that a 1 " belt sander and alot of measuring !

[Mike Caruso]

This handy gizmo helps in accurately measuring both blades to equal them out once cut down

[ATTACH=CONFIG]106081[/ATTACH]

Nice simple and to the point. You could just belt sand the tips to equal and then finish shaping. Tony I like it and can hear my belt sander calling my to come down into the basement.

[dasboata]

I have one of the above calipers I don't use,, if some one wants it $50 shipped post here thanks chris

[longballlumber]

I have one of the above calipers I don't use,, if some one wants it $50 shipped post here thanks chris

Hi Chris,

I will take those calipers for $50. Is PayPal OK?

Thanks,
Mike Ball

[dasboata]

PP is fine use dasboata@aol.com for that they will go out tomorrow

[Mid Day Machining]

Hey Chris, I started a new load of balancers today. I'm making 20 of them.

Steve Seebold

[ray schrauwen]

Who will be lucky enough to get one? Any idea on price?

Hey Chris, I started a new load of balancers today. I'm making 20 of them.

Steve Seebold

[Mid Day Machining]

I'll sell them to anyone who wants one. The price is $75.00.

The balancer is 5 inches tall, 3 inches wide and the end plates start out at one inch thick plate. It weighs about 3 pounds so it doesn't move around on the table while you're working on your prop.

The rails are 3/8 diameter drill rod and the adjusting screw is 3/8-24 with a cap for easy adjustment.