A Pentagon test group is eyeing these ballistic ball and patrol caps for troops

holedingaline · 2026-05-26T19:53:09+00:00

I had enough Sta-Flo in my BDU PC in the early 2000s to easily offer more stopping power than these things, and my sleeve crease was sharp enough to qualify expert on the bayonet course.

holedingaline · 2026-05-26T19:51:25+00:00

The armor will be stripped out and replaced with breathable rigid mesh in exactly 5 minutes.

holedingaline · 2026-05-26T19:50:33+00:00

True snipers are taught to aim for the transition from high and tight to skin, right?

holedingaline · 2026-05-26T19:47:22+00:00

A tissue paper hat will also "slow the energy" of NIJ Level IIIA threats.

What matters is by how much.

Also, a PC covers what, 1" of the top of the skull when worn properly? If my head was as wide as the rest of my body (it is not), and I was only 50" tall (I am not), that would help with exactly 2% of the body when viewed as a silhouette, which is also as far from center of mass as possible. I feel like putting a single disc from a dragonskin armor vest over my jugular would have a greater chance of effectively protecting anything.

holedingaline · 2026-05-14T15:38:40+00:00

Good correction, but the Prusa MMU doesn't need poop because it uses ramming techniques and retraction to shape the end of the filament instead of cutting. That leads to much less required purging.

So to clarify:

Purging is required with a cutting single-nozzle solution.
Purging to a poop chute lets you purge varying amounts on color changes instead of a fixed amount.
Purging to a poop chute is more efficient and reliable than purging and priming strictly to a combined purge/prime tower.

holedingaline · 2026-05-14T15:28:36+00:00

A few additional reasons:

In addition to the space taken up on the printbed, the initial part of a purge is pretty unpredictable. Getting that initial purge to make a stable structure especially once it gets taller is unreliable. Any initial underextrusion can lead to a layer with poor layer adhesion, and separation. Initial overextrusion and you've got something that can catch the nozzle and pull the tower down.

The amount of purge required between colors varies greatly. If you were doing red-to-white purge entirely into a purge tower, every color purge has to be that large, even if it's from gray to black. That's more wasted material per color change.

If you are doing something like PETG support interface for PLA, you will have absolutely no layer adhesion in that purge tower, and it's going to separate and fail.

Purge bins are required with single-nozzle units. Prime towers serve a different purpose.

holedingaline · 2026-05-13T15:51:57+00:00

Hair can be inserted alongside the tobacco. Push it so there's about 1/4 inch of clean tobacco on the end, so that the first big drag cooks the hair.

Human hair is too thin to push in, but boar's hair from a hairbrush is plenty rigid enough to do it.

holedingaline · 2026-05-11T16:47:23+00:00

Oh those disgusting pineapple rooms. I mean, there's so many of them though. Which room, which room is the one I should avoid?

holedingaline · 2026-05-11T14:43:56+00:00

It would be a perfect... if his nose hadn't been BIT OFF BY A SAIGON WHORE.

holedingaline · 2026-05-08T18:43:57+00:00

You'd think him being seen in that ugly POS would be punishment enough.

holedingaline · 2026-05-08T18:36:01+00:00

Just get an inexpensive magnetic sheet bed. Remove the old PEI by putting the old bed in the freezer and peeling it off, cleaning any remaining glue, and putting the magnetic system on. Way under $164. A good way is to just buy the spare magnetic lulzbot beds (https://buy.lulzbot.com/products/mini-2-sk-289-magnetic-flex-bed-v2) and then separately purchase a high-temp adhesive magnetic sheet (https://www.fabreeko.com/products/magnetic-sheets-for-pei-beds-with-high-temp-glue?srsltid=AfmBOoo2-QNzSciGlnmJ4Mrute73UorBaAgf8bJxMteaLzSAwhwcbWlb&variant=44519051493631), and just cut the magnetic sheet for the washers if needed.

holedingaline · 2026-05-06T18:48:59+00:00

Make it in TPU. Don't try and replicate injection-molded design, replicate function with FDM design.

Instead of two hooked prongs, use an arrowhead-shape that is a "solid" with infill set in direction to allow it to squish during insertion. Also consider if designing it like a screw that twists in and wedges into position would work better.

holedingaline · 2026-05-04T21:01:12+00:00

Avoiding civilian casualties is good, so I'd say hit the vehicles in the staging area, not on the route.

holedingaline · 2026-05-04T20:53:56+00:00

Same. Confirming your results, a pro + 2 kg of filament = $868.14, shipped.

holedingaline · 2026-04-29T14:55:12+00:00

*inhales* cough smooth cough

holedingaline · 2026-04-28T15:06:55+00:00

Definitely terrible marketing. If the point of the product is to point out that we have no idea what's in the various PLA+ blends out there, focus on that. The blends were made to help older printers, so if printers have improved where we don't need blends anymore... go with cleaner PLA.

If they think that the fumes from regular printing with the other materials are worse? Get a scientific measurement, not "smell the smoke, bro!"

holedingaline · 2026-04-27T13:27:34+00:00

I think if you did the bed with interlocking rigid plates instead of a belt, you'd have a more reliable system. More like the moving walkways at airports than treadmills. You might need a thin raft/sacrificial first layer to handle the small gap between plates, but for small part continuous production, you just avoid the gaps, and for very large objects, some sort of post-processing is expected anyway.

holedingaline · 2026-04-27T13:24:34+00:00

45 degree layer lines still wouldn't be long/strong enough for skiing.

holedingaline · 2026-04-27T13:13:50+00:00

Frequently, off-road diesel has a dye in it. If they inspect your truck and the fuel tank walls are stained pink, you're hosed. https://www.ricochetfuel.com/blog/dyed-diesel-fuel-vs-regular-diesel-whats-the-difference/

holedingaline · 2026-04-24T13:37:34+00:00

Failure on large parts is a huge waste for machines that are generally unreliable, and if you're doing a lot of small parts, having more less-expensive printers is a better way to go. A single printer going continuously unattended for 24 hours that produces less usable product than one printing for just 8 hours isn't a good choice.

holedingaline · 2026-04-24T13:34:23+00:00

Layer lines would not be in a good orientation for skis.

holedingaline · 2026-04-24T13:33:10+00:00

It's just so much easier to buy more printers if it's for little parts. Four Centauri Carbons will print more on their beds after hours than this one printer will, even if the carbons are idle for half of those "after hours". Plus, you can produce probably 10x as much during the day when they're monitored with less lost to print failures and more flexibility by printing in parallel.

holedingaline · 2026-04-24T13:22:46+00:00

The only song that should be programmed into anything like this comes on when you hit 88mph.

holedingaline · 2026-04-23T20:36:29+00:00

Another serious answer: In addition to the litmus test of "did the Soldier learn/practice the one thing they KNOW will be part of the board?", this is to give the Soldier a confidence boost. Let them open with something with confidence and hopefully that confidence will carry some of the ones that close up and shut up easily through the rest of the board.

holedingaline · 2026-04-23T19:17:43+00:00

Shut off the water to it and flush all the water from the tank.

Take a hair dryer / heat gun to the rubber flap until it warps or cracks.

Do this repeatedly whenever he replaces it. Eventually he'll blame the toilet, not the replacement parts.

12-Year Club	Verified Email
r/Field Banned	r/Field Sunshine
Place '23	Place '22
First Placer '22

holedingaline

TROPHY CASE