The Good and Basic Hackle
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I had heard of heckling--meaning, to bug someone--but I wasn't familiar with a hackle. Hackles are used to process wool fibers, and are often used with wool combs. The hackle is mounted to the table using bolts or clips. Then, the wool fibers are pulled through the nails with assistance from the wool combs.
Joseph put together a YouTube video that explains part of the prototyping process and how to use a hackle.
I didn't appreciate how much work went into designing a practical hackle. I mean, it's a stick with holes, right?
Nope. Not quite.
This hackle includes openings on the end for bolts, as well as an indented end for clamps. It features a double row of nails that tension fit with the plastic. Also, the nail heads fit into a snug shelf, so that when you mount the hackle to the table, it fits smoothly instead of wobbling back and forth. It's the little details that make a big difference.
The Good and Basic Hackle comes in blue, bronze, and red. We had the same problem with the hackle that we did with the wool combs, so the hackle no longer comes in gold. However, like the wool combs, the hackle comes in two varieties: a set with nails and a set without.
Remember, if you're looking for your own nails, they need to be 3.5 inch 16d, bright finish. Galvanized or vinyl nails will catch on the PLA, and you'll need at least one Irish swear per defunct nail. (There are plenty of Irish swears to be had, but save yourself the heckling... heh heh... and get the right nails.)
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Joseph & Aubrey Bjork