J
John Doe
Guest
a a <manta103g@gmail.com> wrote:
https://live.staticflickr.com/2910/32674868164_b3ac55d54b_w.jpg
> thank you direct drive looks really impressive
The most difficult part of making the whole thing is the front fork foot
that holds the free wheel bearings. I used a 3D printer part but I don\'t
like it. If you can find one for sale, you can get that fork ready made
from a drift trike. You also need the free wheel hub that can be driven
from outside of the fork (unlike a normal bicycle free wheel hub).
That freewheel hub is the bear of the project. I have thought about it for
a very LONG time with no good solution.
Anybody who doesn\'t already have free will hubs would be better off buying
the drift trike parts, the fork and the freewheel hub parts.
> I would prefer flexible tranmission shaft for a drill.
Employing a 3D printer, you can make a cup-shaped part super glued to the
fork, the precisely same diameter as the fork, to produce a brace that
makes attaching the aluminum drill holder pieces a piece of cake.
Using that 3D printed brace, getting the drill holder pieces lined up was
easy this time.
It\'s less gaudy now, with two pieces of 1\" aluminum flat bar instead of
one big 2\" aluminum flat bar, sticking out from the fork.
There is no alignment problem, no need for a flexible shaft.
I tested it out front without even securing the drill to the flat bar
pieces. Just a little spring tension between the two sides. The drill
twisted a little when full throttle was applied, but it all stayed in
place WITHOUT even being secured to the aluminum pieces.
It will be secured with some temporary materials that can be cut away for
removal/servicing, before it is used normally.
Make sure to deface the drill if it\'s a namebrand, so thieves will not be
interested!
> Not sure if power shaft can still be flexible to transfer high torque
That and the extra weight. Same thing with a right angle drill. There are
some monster drills from DeWalt and Milwaukee, but, besides the fact it
requires a right angle gear, those drills are too big and heavy. The
ordinary right angle drill from DeWalt is not powerful enough.
https://live.staticflickr.com/2910/32674868164_b3ac55d54b_w.jpg
> thank you direct drive looks really impressive
The most difficult part of making the whole thing is the front fork foot
that holds the free wheel bearings. I used a 3D printer part but I don\'t
like it. If you can find one for sale, you can get that fork ready made
from a drift trike. You also need the free wheel hub that can be driven
from outside of the fork (unlike a normal bicycle free wheel hub).
That freewheel hub is the bear of the project. I have thought about it for
a very LONG time with no good solution.
Anybody who doesn\'t already have free will hubs would be better off buying
the drift trike parts, the fork and the freewheel hub parts.
> I would prefer flexible tranmission shaft for a drill.
Employing a 3D printer, you can make a cup-shaped part super glued to the
fork, the precisely same diameter as the fork, to produce a brace that
makes attaching the aluminum drill holder pieces a piece of cake.
Using that 3D printed brace, getting the drill holder pieces lined up was
easy this time.
It\'s less gaudy now, with two pieces of 1\" aluminum flat bar instead of
one big 2\" aluminum flat bar, sticking out from the fork.
There is no alignment problem, no need for a flexible shaft.
I tested it out front without even securing the drill to the flat bar
pieces. Just a little spring tension between the two sides. The drill
twisted a little when full throttle was applied, but it all stayed in
place WITHOUT even being secured to the aluminum pieces.
It will be secured with some temporary materials that can be cut away for
removal/servicing, before it is used normally.
Make sure to deface the drill if it\'s a namebrand, so thieves will not be
interested!
> Not sure if power shaft can still be flexible to transfer high torque
That and the extra weight. Same thing with a right angle drill. There are
some monster drills from DeWalt and Milwaukee, but, besides the fact it
requires a right angle gear, those drills are too big and heavy. The
ordinary right angle drill from DeWalt is not powerful enough.