Edinburgh Hacklab visit.

The information panel has buses mis-spelled.. Aren't busses common power/data lines?

Gordo

oh that nice reflex sight made of military-grade chinesium! I use one for dry-fire practice, works like a charm

We use a very similar laser cutter at work - that bed needs cleaning with solvent - stops/minimises the flames!

Jon Weston

Off topic but it might make you smile Board Game Card Exploding Kitten Card Game Adult My imagination took me to another place, it is only a card game. The cats in BC's garden are safe. <a href="https://www.tomtop.com/p-t2371-1.html" rel="nofollow noopener" target="_blank">https://www.tomtop.com/p-t2371-1.html</a> John

John Harrison

That's just Delrin, right? I find it's a lot more expensive, and tends to warp a little on long cuts. Although acrylic's brittle, at 5mm with no sharp corners, it'll do a reasonable job.

So you can slave the other “lights” off that one? Looks like you have the makings of an awesome fire control system!

Lostngone

To be a dumb smartass: acrylic is very brittle, use POM-C - this is a very tough industrial plastic which can also be lasercut.

Jörg Schötz

The base mounting was. Vince did the top bit.

Big Clive

Reminds me of our old Blacksmiths shop in the 1990s we had a plasma cutter and could cut 3mm steel plate just using a corrugated cardboard template without burning the template, the nozzle diameter was about 12mm just cut the template a bit smaller. Sad silly story one of the lads wondered how much compressed air pressure there was at the nozzle --- yep he put his thumb over it and pulled the trigger --- yep it went right through.. Myself I did not expect it to arc with no earth ? not sure if it is true, just what I was told. We also had a Tig welder [ ex Delorean car production ] that was a bit of fun we could turn the power down and weld [badly that is] the old style drink can ring pull back in place. Waffle warning My father was away the date was about 1985 and I was asked to repair two outboard propellers that had one of the three blades damaged [beyond repair, there was a lot missing] the funny thing is I had no idea how to set up the TIG plant to do this so not wanting to give up I went to the Library ;-) The Yamaha prop was easy to weld, the Mercury engine prop was a bit messy I guess it was a more manganese alloy propeller blade [Lucky I could have set it on fire and just had a puddle ] All went well and I used an angle grinder to shape and reduce the thickness of the 1/4 inch aluminium offcut replacement, all done with touch and feel. I then made a simple setup to check the balance of the prop. Just shows what you can do if you have a go at something [I guess being young did help ] Today I know more and I guess I would not have attempted such a task. I like the jig you made for the laser face recognition shoot to kill "first offence" weapon. I guess I would have done that with a drill and jigsaw in days past. My granddad in the 1930 made his own Micrometer I still have it, I also have a photo of him shoeing a Shire horse and in the back of the Blacksmiths shop you can see a Shaper and a small Lathe that he used to make it. John

John Harrison

Very cool Clive! Was this your idea?

i used those sights but not for spot lighting

Steven Cox