Category: sketchbook

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Building the Shack, Part 12

Ended up spending most of the winter on the walls, working on warm days. Started by cutting and stapling sheet plastic over the frame where the walls would go.

Collected usable scrap lumber from around the property. Angle cut boards on the table saw to 30°. Made perpendicular cuts in the workshop with hand-held circular saw.

Started on the west wall. Didn’t beat the snow. Got most of the west wall nailed into place standing on saw horses. Finished on the extension ladder.

East wall was the most complicated. Hung the entension ladder on the roof peak from the foot of the banking, being careful of the picture window.

Made a platform with the ladder, to get the board above the window nailed into place. Steadied the ladder by running ratcheting straps out from the side windows, and finished the roof peak late one night in February under freezing drizzle.

South wall easier. Stood on the block of styrofoam from the picture window installation to get the top board in place. Worked up from the bottom. Recut the final board a few times.

North wall finished last. Cut the final board trapezoidally by hand.

Finished this afternoon, in sunny 45° spring weather.

Caulking needed in places, but walls are in place.

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Spaceships

If you don’t have artificial gravity, science fiction starts to look more like the age of schooners. To get from place to place in the solar system it’d be necessary to accelerate halfway, turn around and decelerate for the rest of the trip. Accelerating or decelerating at more than the equivalent rate of Earth gravity (9.8m/s) would be difficult for the crew to withstand for long. Jupiter is about 983 million km from Earth at its nearest point. If I’m doing the math right (and I’m probably not) accelerating halfway at 9.8m/s would take 158 hours — about 6½ days. The full trip would take two weeks.

Laser weapons are a must. You’d only be able to see them when they shoot through gas or dust, but when it comes to shooting from one moving platform and hitting another on a logarithmic scale you won’t get much time to aim. A projectile would deliver more energy with less expended, but a powerful lazer would be able to vaporize or nudge it out of the way. Opponents would basically joust on a split-second timeframe, trying to pass momentarily close enough for their computers to shoot. Ships would be no more than specks to one another, usually less. Forget about human combat.

Until someone tells me what exactly an “energy shield” would be, we’ll have to assume that surviving a lazer attack means thick, dense plating all over the ship. If a lazer can vaporize a few cubic meters of hull in one shot, you’d better have a lot of hull to spare. It should be shiny too. Getting hit with a lazer might lead to some pretty refractions.

One last thought: Get used to the solar system. It takes light from the sun (which doesn’t have to accelerate) eight minutes to reach Earth, four hours to reach Neptune, and four years to reach the nearest star — itself a burnt-out red dwarf, Proxima Centauri.

Blowing some of the cobwebs out of scifi tropes, fiction begins to slip into unfamiliar grooves.

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Building the Shack, Part 11

Filled the gaps in the roof with expanding foam. Still a few leaks, but mostly sound.

Built a doorframe. Hardware from various junk drawers in the shop.

Door scrounged from the old cottage on the island, along with the two side windows.

Didn’t do the door the correct way with shims. Nailed and screwed small lengths of scrap around edges of doorframe to straighten it.

Considered getting help to move the picture window into place, but found a way to do it alone. Tacked a pair of strips to the outside of the shack, to prevent it from tipping outward.

Not quite enough space to get the window into place. Had to shave the gap down.

Rocked the window into position by stepping it up on levels. Clamped it to frame and pinned it from sides with screws.

Tacked a strip under where I wanted the side windows, after a few false starts. Put the weight of the windows on the strips, and used clamps to keep them from tipping. Measured, screwed the hinges in, and then removed the strips.

Tacked foam tape around the frames of the side windows. Used hardware from one of the old boats at the top and bottom of either as latches. Walls in progress.

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Building the Shack, Part 10

Scrounged some old planks for the roof. Condition was poorer than I expected. Cut boards to size. Filled gouges, nail holes and cracks with wood filler.

Duct-taped vinyl gloves to my sleeves and painted roof planks with Coppercoat wood preservative. Smell didn’t dissipate for weeks.

Hammered all but the topmost planks into place on a stepladder. Height difference of the westernmost rafter causing problems. Should be able to solve it later with trim.

Cross-braced the rafters to make sure the roof would support my weight. Strapped an extension ladder to the frame of the shack to get access to the roof — wanted the frame to be holding my weight, not the ground at the base of the ladder.

Nailed final sections of roofing in.

Offered to haul off some aluminum rain gutters my friends had been meaning to take to the dump. Hacksawed and hammered a roof peak out of one. Pounded nail holes in the workshop. Covered nail holes on the underside with Gorilla Tape as an additional water stop. Nailed roof peak into place.