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Ski Sled: Two 10 ft Ash Ski Runners With a Rocker, Under a Three-Board Top (Boy Mechanic, 1919)
George J. Egelberg, The Boy Mechanic Book 3 · Public domain
Woody

Created by

Woody

13. November 2026NO
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Ski Sled: Two 10 ft Ash Ski Runners With a Rocker, Under a Three-Board Top (Boy Mechanic, 1919)

George J. Egelberg's ski sled from The Boy Mechanic, Book 3 (1919): "built low and wide so that it will not tip easily", on two 10 ft by 6 in ash runners boiled and bent like skis, set on knee blocks with a slight rocker, and topped with three 6 in boards.
Intermediate
About 2 days

Instructions

1

His sizes, and the rocker

Loading Jupyter Notebook...
2

Read The Boy Mechanic, Book 3

"The skis, or runners, are cut 10 ft. long and 6 in. wide, from 1-in. ash boards that are straight-grained."
3

Thin the bend

Cut two runners 10 ft long and 6 in wide from straight-grained 1 in ash. Where the curve will be, plane about 1/4 in off the upper side, but not at the very tip, so the skis bend more easily.

Materials for this step:

Hardwood BoardHardwood Board2 pieces

Tools needed:

Hand SawHand Saw
Hand PlaneHand Plane
Tape MeasureTape Measure
PencilPencil
4

Boil and bend

If steaming is not handy, boil the skis with at least 1-1/2 ft of the points under water and the vessel covered so little steam escapes, for at least one hour. Take them out, put them side by side in the bending blocks at once and bend with slow, even pressure; weight the long ends and leave them 8 or 10 hours to dry. Sharpen the points after bending.

Materials for this step:

Pine BoardPine Board1 piece

Tools needed:

Large Cooking PotLarge Cooking Pot
Bar ClampBar Clamp
Hand PlaneHand Plane
5

Set the blocks and top

For a slight rocker, make the centre knee block 6 in high and the two end blocks 5-1/2 in. Run a 1/4 in flat-head bolt through the ski, the block and the cross strip, countersinking the heads in the running surface. Make the top of three 6 in boards fastened to the crosspieces, and brace the ski tips with a 2 in strip.

Materials for this step:

Hardwood BoardHardwood Board1 piece
Pine BoardPine Board3 pieces
Carriage BoltCarriage Bolt6 pieces
Flat WasherFlat Washer6 pieces
Wood ScrewsWood Screws1 piece

Tools needed:

Hand SawHand Saw
Hand DrillHand Drill
Countersink Drill Bit SetCountersink Drill Bit Set
HammerHammer
6

Troubleshooting

Ski sled troubleshooting.

Flow

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7

History and honest limits

From "A Ski Sled" by George J. Egelberg, in **The Boy Mechanic, Book 3**, Popular Mechanics, 1919 (Project Gutenberg 71856; checked on the archive.org scan boymechanic0003unse, p. 41). The bending-block shape and knee pieces come from his drawing. The tools and metric figures are ours.

Materials

5

Tools Required

9

This blueprint makes

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Sled

Free

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