Joined: Feb 26, 2011 Posts: 81 Location: Spanish in Venezuela
Posted: Wed Mar 02, 2011 7:17 pm Post subject:
sinrisnekaf, to the male can use a hardened steel bar ½ "diameter, but could also be something larger.
Are grounded at one end, four-sided pyramid-shaped, so that the angle between two opposite edges of 90 degrees. (Fig.-1)
Their faces will be approximately 70.5 ° from the vertical plane (Fig.-2)
(Originally it appears that the projections of the pedals were in a diamond, so it would have to play with the angles of the faces of the pyramid, if we maintain the appearance of the original pedals so that one diagonal is longer than the other.)
The next step will be to make a lateral plane of approximately 5 / 16 "wide to keep the male always in the same position, and prevent twisting. (Fig.-3)
In one of the holes of the bracket, weld a small plate, where the flat side slip of the male. (Fig.-4)
The base where the female is placed, can be any solid block of soft iron, and the female can be of diameter 5 / 8 "or more, but like the macho, hardened steel.
The hollow pyramid have the same characteristics as the male, with a depth of 3 / 16 "or 5mm or so, if we want the highlights are the 1 / 8" tall sides leaving ¼ "x ¼" (Fig. -5 to 6)
(1 / 8 "+ 2mm sheet thickness = 5mm)
After drilling the solid block with the same diameter as we have chosen, for the female between giving a depth less tight and stand the female and not block any part of the pedal plate
What remains is hit with a sledgehammer, if you do not have an eccentric press, as was my case.
My recommendation after having had the experience, is that curve and bend the pedal, before cutting the ribs, as during this step we will hit on a pipe (the same you see in the picture with the old pedals), and can damage the projections we made.
That is all ...
But it remains to pop the big question: how does the hole in the female pyramid?
Very easy ... Do all the work and arming the entire set, except the hollow pyramid.
Hot female with a torch until red-yellow color, at which temperature the steel will acquire its plastic state, then hit with the male to make the hole.
It is possible that when you look cool slightly elevated edges of the square of ¼ ", then we have to lower them, with an electric grinder.
Good luck.
P. S. I have a question: You understand what was written? or there are words out of context ..... if so, I hope forgive me, I am using a translator.
I would like your opinion please.
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