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Forged Steel Dividers with a Riveted Joint
Dividers are a compass with two steel points: set them to a distance and step it off along a line, transfer it from a rule to the work, or scratch a circle. Forge two matching legs, rivet them at a stiff joint so they hold a setting, and harden the points.
The picture: steel spring dividers set with a screw; the ones made here hold their setting by a stiff riveted joint instead.
Intermediate
A day
Instructions
1
1
Forge two legs
Forge two legs
Draw two equal tapered legs from tool-steel bar, each with a flat round boss at the top. Forge the bosses thin so they overlap to the thickness of one leg.
Materials for this step:
Flat Tool Steel Bar1 piece
Charcoal1 as requiredTools needed:
Blacksmith Forge
Anvil
Cross Peen Hammer
Blacksmith Tongs
Welding Gloves
Safety Glasses2
2
File and pair
File and pair
Anneal, file the legs straight and equal, and file the bosses flat so they sit face to face. Drill them together through the middle.
Tools needed:
Metal File
Hand Drill
Ruler3
3
Rivet the joint
Rivet the joint
Put a rivet through, peen it over until the legs move stiffly but evenly, so they keep a setting without slipping.
Materials for this step:
Iron Rivets1 pieceTools needed:
Cross Peen HammerAnvil4
4
Harden the points
Harden the points
Heat the last few centimetres of each point to cherry red and quench; polish and temper to brown. Stone both points sharp and to the same length.
Materials for this step:
Water5 litersTools needed:
Blacksmith Forge
Quench BucketBlacksmith Tongs
Whetstone 1000 GritWelding GlovesSafety Glasses5
5
Stepping off a length
Stepping off a length
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Materials
4- 1 piecePlaceholder
- 1 as requiredPlaceholder
- 1 piecePlaceholder
- 5 litersPlaceholder
Tools Required
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