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Yeah, using a pair of calipers is my last resort on this...but given that there's one single o-ring sitting between me and a $7000 paperweight, I wouldn't mind some sense-checking on the sizes!

Hi, Bumping this very old thread - did you ever find a source for these o-rings? Especially the tube o-rings.

Yeah, it also goes against my personal experience with the 1000-6, where I find it's still pretty bright at the end of a 90 minute dive. But I don't know how much is just my own personal perception of 'bright' vs an objective measurement. Charged to 4.12 - should make absolutely minimal...

So, by pure coincidence, I started running some semi-scientific burn tests on 21700 lights in my basement a couple days ago. It's not very sophisticated - light in a bucket of water, with the head pointing at a light intensity (lux) sensor 30cm away. The DGX 1000-6 did not stay on a constant...

I think the new Garmin would handily satisfy your requirements. It is somewhat terrifyingly expensive, but it does have a screen that keeps a graphical compass up top, depth/NDL on the left, and air below the compass. I haven't dove the x50i, but I've got a few hundred hours on the Descent...

So, most of the details of CCR Fundamentals seem to be out, but there's still some unclear pieces: - 30m max, MDL dives only (although - is that OC MDL or CC MDL? You could do a much longer dive @ 24m or 21m with a CCR than on 32) - Approved gases - GUE site says "Standard gas mixes in...

Perhaps a little, although I think most (cold-water) drysuit divers would struggle to keep comfortably out of the water on the surface with an empty BCD. You can’t keep much extra air in your suit when you’re vertical bobbing on the surface, and your head is quite a lot of weight to support out...

One thing to bear in mind is that any problem with a pull-cord dump on the shoulder will completely deflate your BCD on the surface. On two separate occasions, I’ve had dive buddies with right-shoulder dump valves have the pull toggles get entangled underwater, which held the dump valves open so...

To me, it sounds like the big change here is allowing people to skip T1 and move straight into CCR-F, no? Which, I don’t know that I necessarily agree with that entirely, but it seems like (in some parts of the world) any amount of open-circuit trimix is becoming logistically challenging. I...

Blacktip Tech DPV/scooter, in great condition with a long list of improvements. It currently sits neutral and trim in saltwater, and has a 3hr 20 min runtime at 45m/min (recently verified in a rinse tank). Comes with: - 20Ah battery pack (built by Next Stage Gauges Next Stage Gauges - Cavepack...

Suex XJ-S scooter, very lightly used, excellent condition. 10 full battery cycles and 20 hours on the motor, so everything still on 100% condition. Comes fitted with a custom T-handle, Suunto compass unit in a custom housing, and stand. Also includes all the standard accessories, original...

I once made weighted drysuit socks, mostly for the entertainment value, but they were definitely not DIR approved. I’d love to hear the real justification as to why adding weight to fins is fine, but weight on your ankles is bad. Where’s the dividing line? Would metal plates in the bottom of my...

Starting a thread for anyone interested in Apeks' new 1st/2nd, the EVX 200/EVX Tungsten. Description and images that I scraped are in this post, but to summarize: Looks quite a lot like an XL4 second stage with a redesigned purge cover. Double-swivel hose will anger the DIR crowd but maybe make...

Managed to dig up the full spec and a couple more images. Looks like 1Q25 release date, I'm ballparking $849 US for the 1st + 2nd stage. Images and text are off a publicly accessible (but unlisted) CDN bucket, so I would expect it to be announced in the next couple days. EVOLUTION OF...

Little bit of digging around found this heavily pixelated image. Looks like a whole bunch of dive shops accidentally broke embargo. 2nd stage looks (to me) like some kind of XL4/MTX mash-up. First stage looks very interesting though! Nice hose routing for single-tank long-hose, potentially.

It's ubiquitous because it's affordable; it's affordable because it's technology that has remained unchanged since 1995. The lack of features (compared to the Garmin) doesn't intrinsically make it reliable - the signal can be blocked much more easily, it's far more prone to interference from...

Garmin doesn’t, but it’s the kind of possibility opened up by its transmitter tech. Garmin’s transmission protocol has much more range and data throughput (and, almost inevitably, reliability) than MH8A transmitters. Adding in other data fields or 2-way transmission with a rebreather would be...

You don’t have to hold the Suex trigger, FWIW. It would be nice if the speed control was on the handle though.

I can, but I’m in Canada (west coast) and I imagine the cost of shipping would be stupid.

I've printed a handful of things in nylon. If you're looking at pure PA6, you'll only need a metal hotend; an enclosure is also a really good idea for printing engineering plastics. If you're printing PA6-CF, you'd need hardened steel nozzle and extrusion gears to prevent wear. You also need a...