How-To: Build Your Own Roller Spring
Perches
I started on my roller perches today after having the kit and a spare
set of perches laying around for more than a year...and it was an
interesting experience. I learned a few things that I thought might be
worth sharing, so I'll try to lay it out here.
My Tips:
1) Use hand tools. A hacksaw and a hammer will be your best friends
here.
2) Use the vise, Luke.
3) Tape up the ends.
To build these, you have to cut a big notch in the perch and pull out
the shaft assembly, take the metal cover off the shaft, the get the
bushing off the shaft. Then you can actually put in the roller bearing
parts.
With that said, let's get down to the details...
I cut out both sides of one perch in 5 minutes with a hacksaw and
knocked the metal off with a hammer. No burning rubber, no sparks, and
it flat-out looks nice. I started out using an angle grinder, just like
the directions said. That mangled the living crap out of the thing and
got the rubber burning
something fierce, plus it was kinda slow. Hacksaw: 1 - Grinder: 0
BTW I didn't have to cut out much. I cut a wide V that was more or less
uncovered the top of the
bushing sleeve. I also decided to cut both sides, which made things
EASY and won't be an issue later on. Some how-to's only show cutting
one side; I don't exactly understand how that's supposed to work? My
Scott Drake perches had one
side crimped, and that didn't need nearly as much cut away and seemed
to come out much more easily.
Next, I had to get the shaft and bushing out. So, I chucked it up
horizontally in the vise...but the thing didn't want to come out, so I
finally crammed the prying end of the hammer in
there and pried. Presto! I'm done! One one, it decided to fight a
little more, so I just used the hammer to loosen it up and just grabbed
it and yanked it out the "open" end.
Then, I had to get the metal cover off the bushing. I chucked the
bushing assembly in the vise horizontally. Then, I
took the grinder and ground a notch lengthwise, then chisled it the
rest of the way though. Then, I flipped it over and repeated on the
other side, and when I grabbed an old screwdriver and started prying,
the
sleeve fell off in two big pieces.
So now, we've got the shaft out, but it's still covered in
molded-on bushings. So, I sliced off a bunch of rubber with a razor
blade in one spot and used
the trusty wire wheel to take it down to bare metal. Once I had it to
shiny metal in that spot, I went after the edges of spot with the wire
wheel and "grew" that spot until the whole thing was clean. An extra
light touch and the edge of the wire wheel thinned out the thick spots
in the rubber nicely.
So, now we've got them apart. On to (rollerizing them).