Linux gamer, retired aviator, profanity enthusiast

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Joined 2 years ago
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Cake day: June 20th, 2023

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  • The Leatherman Skeletool is currently available in several varieties, including the long-running standard model with an unfinished stainless steel body, a chunk of aluminum in the handle, and a 420HC semi-serrated blade, and the Skeletool CX variant with…whatever the black coating is made of, a carbon fiber chunk in the handle, and a 154CM plain blade.

    When the model was first introduced, the base model had a plain blade, and the CX had a semi-serrated blade. This was swapped, as they realized first time knife buyers were more likely to see the semi-serration as a value-add, while more serious knife guys would prefer a plain blade. So you might find a very old Skeletool with a plain 420HC blade, or an old CX with a semi-serrated 154CM blade.










  • I live in an East coast pine forest where the average urethra has longer range than sub-watt UHF. What range testing I’ve done with the two nodes I own shows I can get about 3 blocks with one of my nodes on my roof. Around here, you’d need adoption at a truly impossible scale to get any use out of LoRa as an infrastructure protocol.

    I know of three projects that use LoRa as the carrier technology: Meshtastic, Meshcore and even Reticulum (which isn’t strictly LoRa but I’ve seen it extended across LoRa). Meshtastic is probably the worst, and most popular, of the lot.


  • Having played with it a bit, I have very low hopes for Meshtastic.

    Being UHF it’s very line of sight, and things like trees absorb the signal significantly. They like to talk about long range, but it really isn’t.

    Meshtastic doesn’t really do intelligent routing, so it’s not great as a single large public net.

    Meshtastic has a lot of little features like telemetry and such which are half-baked and broadcast on the Primary “channel.” Settings to send automatic or telemetry data over secondary channels is absent in the very half-baked software are of course missing.

    It’s less secure than shouting in the street. Looking at the design of the thing, it looks like it’s a man-in-the-middle attack that’s had a chat app built around it.

    And you’re not going to get normies to adopt it. It’s a garbagefuck user unfriendly chat app that you need to spend $50 on a little radio to even use, to talk to…nobody. I’ve seen the idea of “Let’s use it to communicate during our hike!” I can think of fewer practical ways to do that, because now you have to have the Meshtastic node and a phone with you, if one or the other battery dies you’re fucked, and it’s possible you’d be out of radio range of your partners before you’re out of shouting range. Somebody’s gonna walk out into the woods with a meshtastic node, fall into a hole and their body will never be found.




  • The Ondsel project seems to have died. Their apparent business model was they were going to bolt cloud shit around FreeCAD. Hilariously stupid business model but at least some of the money they wasted went to open source software. They shook out a few of the open source tumors, like the sketcher now has a semi-intelligent dimension tool, I think they tackled the topological naming problem and we’ve finally got an official Assembly workbench that even sort of works I guess. But it’s still FreeCAD and if something can be unintuitive, it will.


  • 48" / 5 = 9 3/5" = 9 9/15" ~= 9 9/16" or 9 5/8". Dividing by five gets a little messy, but I divide by 2, 3 and 4 a lot more often than I divide by five. Thing is, that works out to be some pretty narrow doors, like, middle school locker narrow. You can indeed contrive scenarios where the math is ugly, but inevitably the cabinet you’d make would also be ugly. In actual scenarios you face in the real world it has a way of working out.

    I’ll give you a real world example. I recently built this dining room cupboard and hutch. The absolute overall width of the cabinet is 4 feet at the tabletops. The tabletops overhang the edges of the carcass 7/8", and the legs are 1 3/4" thick. So the area between the legs that the doors fill is 3’ 6 3/4" (4’ minus a total of 5 1/4"). The upper doors are 1’ 2 1/4" and the lower doors are 1’ 9 3/8". In reality each is 1/16" narrower than that to allow for some space for the doors to swing open and closed. The drawers have a 3/4" thick bulkhead between them, so each opening is 1’ 9", and the drawers are 1/8" narrower than that to allow a 1/16" gap on either side so each drawer is 1’ 8 7/8".

    The leg dimension was chosen so I could have two layers of 3/4" boards, one for internal structure one for the outer rails, doors etc. and still have the legs stand 1/4" proud to make the legs look like legs (which they are; they’re genuine posts) and to hide any impreciseness in fitment or milling of the rails, doors, drawers etc. The top overhang on each side is half of the leg’s thickness, and then every dimension after that comes from the plan of the cabinet.

    Tell me that wouldn’t have been a pain in the ass to do in metric.


  • Okay, a simple mortise and tenon joint. If I cut my board to 3/4" wide, if I want a tenon that is half the width of the board, it is 3/8" with 3/16" on either side. All my tools have these markings, I have router bits and such that are these sizes, easy. If I want a tenon that is 1/3 the width of the board, that’s 1/4" with 1/4" on each side. Also quite easy to find tools for.

    In metric land, they often mill wood, or manufacture plywood, to 19mm. Because that’s quite close to 3/4". Show me a half, or a third, of 19mm on a metric tape measure.

    You’ve got a 4 foot cabinet with 3 doors in it. How wide is each door? 1 foot, 4 inches. You’ve got a 400cm wide cabinet with three doors, how wide is each door? 133.3333cm.


  • There is, now, a separate problem where 2x4s specifically are made of very inferior lumber. most will have either pith or wane, and I’ve seen them have both, which means the tree they harvested is maybe 5 inches in diameter and they might have gotten 3 2x4s out of one log. Even compared to when I was in carpentry class in high school the quality of construction lumber has decreased. Larger boards like 2x8s or 2x12s don’t similarly suffer because it’s impossible to make them out of saplings. But still.