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Not sure what type of foam those ones use but the foam used on deep ocean ROVs etc is called Syntactic foam. Syntactic foam - Wikipedia I've not looked into it in a long time but I think DIY is possible but not easy or cheap. Maybe there are more affordable sources of it now.

I've previously just cable tied a light to the same style of handle using some holes I drilled in the handle. Seems to work fine but not really tidy enough for my liking :). Still better than a hose clamp though. A screw on half saddle 3d printed for the exact diameter would be pretty nice. Dean

Nice work, that's a very cool idea how you have paired the 3d printed upper with the metal lower. best of both worlds. I too chose an XTAR for the mounting point for goodman handle (probably the same type you took your bottom half from). I think with your upper half you could make a clean mount...

Hi Jan I had the same confusion. You're probably looking at the wrong branch for your hardware version. Take a look at answer provided here. https://github.com/bwoodill/BT_VESC/issues/12

Ok what I suggested with multi-pole switch and two circuits is what bakodiver391 already described but maybe (?) with seperate mic and speaker (3 or for wire)

https://www.elcircuit.com/2012/07/doorphone-intercom-circuit.html?m=1#.WCvzSvkKOlo.pinterest Here is an alternative with one ptt switch and could be done as two wire with all the electronics at the surface however I think it's probably too simple to work well as the transmission line (the...

Example of circuit complexity for 2 wire with ptt switches (do your usual ones have ptt or voice activated?) https://4.bp.blogspot.com/-luuN32ILSdg/VBoUr-LLbzI/AAAAAAAAAi8/PdXZB45vZRQ/s1600/Two%2Bwire%2Bintercom%2Belectronic%2Bcircuit.jpg

Electronics wise it's pretty simple but as tbone said, without experience maybe its not for you. However you might find some good step by step directions in some of the old hobby electronics magazines. Search the archives of Silicon Chip magazine for example and I see there are several projects...

I've heard that some shops can be reluctant or outright refuse to fill tanks that have clearly been re-painted. The worry is that any pitting or other damage could have been filled and concealed. Also that the paint might have been baked on and affected the metal. Maybe check in with your local...

Glad I'm not the only one. I hate those holes. I'm so happy my Eddy fins come from before that change was made and I only hope that I never need to replace them!

How @goldfishtornado described it is the same as how I think about it. Exactly like an airplane wing. On the down stroke it has a very high angle of attack to the water and the vent delays "stalling" by keeping the water flowing across the back of the fin in laminar flow attached to the blade...

Definitely a DIY job! If its leaking when not connected to anything then its not the oring, it will be the valve core. That video is great and will make it pretty clear. valve core https://scubagaskets.com/product/schrader-valve-for-bcd-repair/ valve core tool...

very true and it will also slightly accelerate your deco due to the average supersaturation being higher since with the staged stops you only briefly touch the supersaturation limit when you first arrive at a stop. However riding the ceiling would also mean that you're using the model in a more...

Could also watch the "ceiling" on the computer and move up earlier once ceiling is less than 5m but I've never bothered and just wait the extra few minutes for the 3m stop to be available. I'm not sure if the computer would consider that a missed stop despite not violating the algorithm (though...

Regardless of the fraction I think this principle is rather practical and I do the same. Clear the 6m o2 stop but only ascend to 5m (16.404 ft) 😀

While "off-gassing" at 6m on O2 is happening at the exact same rate as it would at 3m or on the surface if still on O2 there are other reasons to stay lower. Some people like to avoid the swell if the surface is not dead flat but from a deco point of view it does limit the further growth of any...

The sensors used in most analysers, commercial or homemade are rated at ± 2% anyway. Sure there may be liability here. Also if you loaned equipment to someone. Probably the most liability that we routinely take on is to buddy with someone or to drive a boat with others onboard. When was the last...

No this is not normal at all. Hopefully it should be cleared up by then. I'm north of the city so probably not the best one to give advice. You'll likely have more success to find a buddy / advice on the numerous facebook groups which are a lot more active than Scubaboard for local stuff. eg...

Hi jjmochi, How long will you be here for and what suburb are you staying in? With non-stop torrential rain for the last several months the vis has been total trash. It's only barely starting to improve now so it's hard to recommend anything at all. Dean

maybe consider something like this as an alternative. There are many variations of this sort of hardware that will just insert into your existing seatbelt buckle. https://www.ebay.com.au/itm/274669615991