The Proteus Framebuilding Book - Proteus Bicycles

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kept in mind. First, the style of joining the pieces must be decidedupon. This style can be chosen from the section on finishing stayand fork ends. Usually the style of the chainstay ends, seatstayends and fork blade ends all match. In most cases the dropout willbe too large to fit into the chainstay end. Therefore the dropoutmust be filed. Remove an equal amount of material from both the topand bottom of the dropout. (Fig. 1)RemovehereFig.lAt the same time you should be preparing the seatstay ends so thatthey will fit properly. To do this, remove material from the topand bottom of the dropout where the seat stay attaches . Thewidthof the dropout should not be changed. If it is too wide to fitinto a slotted end, widen the slot. This can be done with a smallfile or hacksaw. A snug but not too tight fit of the dropout ispreferable. If the chainstay is open ended, be very careful sowhen the dropout is brazed onto the stay, the sides of the ovalor crimped section of the stay will be perpendicular to the ground.34
(Fig. la) The important point in brazing the dropout onto the chainstayis to be sure that both dropouts line up exactly the same whenthe chainstays are laid one on top of the other. To braze the dropouts,clean and flux the parts. Place the assembly in a vice. (Fig. 2"this not thisCrimped areaWVFig.Fig
Page 1: 7PROTEUS DESIGN INC.THE PROTEUSFRAM
Page 5: I would like to thank the following
Page 9: Painting''Metal Preparation 77Apply
Page 12 and 13: Just get ones with metric, or Engli
Page 14 and 15: ,It is not necessary to use differe
Page 16 and 17: .frame more responsive and less ene
Page 18 and 19: The other consideration, clearance,
Page 20 and 21: Thisthe axle center to the ground.
Page 22 and 23: connecting the center of the bottom
Page 24 and 25: Roadgauge of tubing. Most sets avai
Page 26 and 27: efore any damage will occur. So eve
Page 28: The first miter you will work on is
Page 31 and 32: the bottom bracket shell and hold t
Page 33: Preparing the LugsThe next step is
Page 36 and 37: CenterlineFig. 3If possible, use so
Page 38 and 39: area where the clamp was. Turn the
Page 40 and 41: .8the frame will have cooled enough
Page 42 and 43: .touch anything. You don't have to
Page 46 and 47: The dropout may be able to swing a
Page 48 and 49: Using the scribe marks as a guide,
Page 50 and 51: Gently remove the wheel. Don't worr
Page 52 and 53: and bend the dropout to correct the
Page 54: that you are ruining your frame. Th
Page 58: .Use a small round file for this. T
Page 61 and 62: crushed. At this point the end shou
Page 63 and 64: especially true with silver, which
Page 65 and 66: emain in the right place and you ca
Page 68 and 69: .is much easier to work on them whe
Page 71 and 72: the board. (See Fig. 5B.)Lay the st
Page 73 and 74: Fixing the 2" x 4" axle assembly to
Page 75 and 76: Correct blade angle ,. WrongangleFi
Page 77 and 78: the right and left measurements are
Page 79 and 80: ItLots of points, you may want to s
Page 81 and 82: the lugs and fork crown. For final
Page 83 and 84: PointsNext, using a curved or large
Page 85 and 86: frame. Two popular styles are domed
Page 87 and 88: IPaintingrub your fingers over all
Page 90 and 91: .necessary to use small pieces of s
Page 92 and 93: Fig 2
Page 94 and 95:
.wascomplete.Applying the PrimerA p
Page 96 and 97:
.ofthink it'd be clean. Chances are
Page 98 and 99:
a similar method. At- this point it
Page 100 and 101:
To..only exposed a few tiny spots o
Page 102 and 103:
Peoplepaint to give a bright, shiny
Page 104 and 105:
OneAcrylic.and the frame can be bui
Page 106 and 107:
the frame members apart. The diffic
Page 108 and 109:
\bottom bracket or the seat tube ou
Page 110 and 111:
Seat & Chain Stays 4 piecesFork Col
Page 112:
Proteus Design framebuilders are pr
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The Proteus Framebuilding Book - Proteus Bicycles

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