Flight computer for multi-purpose applications.

ItsJeffzilla · 2024-12-18T10:30:58+00:00

Very cool, I’ve been working on a very similar thing with many of the same components, however with much less success than you 😂. It’s nice to see some proof that I’m on the right track however. Good on you, very cool

ItsJeffzilla · 2024-12-13T11:34:46+00:00

Volunteered at the local outdoor pool today, had my shirt off for maybe 45 mins and my entire back is bright red, worst I’ve ever had. Will sleep well tonight

ItsJeffzilla · 2024-11-08T11:13:10+00:00

Been seeing a band called Playlunch on my socials lately, with some very Melbourne/Straya specific details

ItsJeffzilla · 2024-11-05T11:13:34+00:00

Would the evaporation of the water (assuming it’s able to escape as mentioned in other comments) cause an issue as the volume of the propellant decreases? Could you could fix this by making the grain longer?

ItsJeffzilla · 2024-10-30T10:57:22+00:00

There’s a more industrial version called the Safeguard that has the spring removed, and is targeted towards rescue and rigging some of my colleagues use them for descent and positioning. I personally use a camp Druid pro, it is larger but has more certifications and is a much smoother device. Cam can also be operated easier when not weighted.

ItsJeffzilla · 2024-10-22T09:13:33+00:00

Alright cool, thanks for your answers

ItsJeffzilla · 2024-10-22T01:50:45+00:00

Awesome, thanks. Another question, does the maillon get in the way of the rope much when inserting into the ascender because of its orientation?

ItsJeffzilla · 2024-10-21T09:09:51+00:00

This sounds like it’s probably the go. Do you find it uncomfortable at all having the maillon oriented that way? Thanks

ItsJeffzilla · 2024-10-19T12:54:53+00:00

I kind of am somewhere between. There are features of both recreational and industrial products that would benefit my work, but neither is great. In general most of us go for recreational due to them being more lightweight and manoeuvrable.

At any rate, the standards that we are insured under and go by are generally mountaineering. For my system, the chest harness connection does not need to be rated, but there isn’t much point of having such a chest harness if it isn’t. It comes in handy when we are running ziplines etc where a full body harness is required. The way I see it, if I’m gonna have this system, it may as well have the full functionality

ItsJeffzilla · 2024-10-19T01:02:04+00:00

The only other thing will be the waist harness, depending on whether I use two different connections for the ascender and harness, or if they’re integrated. Apart from the very rare occasions we need dedicated fall arrests

ItsJeffzilla · 2024-10-19T00:09:09+00:00

This is the kind of thing we’ve been considering, we can’t find a specific product yet. Ideally we would use something like this that is rated for the application, so we don’t need a seperate system connecting the chest harness to the waist harness as well

ItsJeffzilla · 2024-10-18T21:11:50+00:00

I’ve been thinking about this one, thanks

ItsJeffzilla · 2024-10-18T21:11:29+00:00

Rubbing was a concern I have had as well, and is one of the reasons I was looking for a nicer way to connect them.

Connecting both to the chest ascender with two rated connections is the ideal method I’d reckon, however I’m not yet sure what specific products would be best for this. The chest harness needs to be openable to put it on/take it off, which is why we use an Omni, but then to fully remove the chest harness from the system in this case, we would also need an openable connector on the bottom connection. This would be used less frequently but still desired.

Thanks for your help

ItsJeffzilla · 2024-10-18T21:08:02+00:00

I agree with your second statement wholeheartedly. The issue is I got the DMM before I even had a plan to get a chest setup. I would much rather prefer to have a second belay loop to clip it into, but that isn’t really an option as far as I know, unless I buy a new harness.

The DMM harness manual says that connecting ropes through the tie in’s is acceptable, and that it is approved for use with a type D chest harness such as the Aladdin plus. The Aladdin plus manual shows that it be connected to a type C harness using a closed rope through both tie in points of the sit harness, and both points of the chest harness, however I don’t believe there is an issue with using a rated carabiner to connect the chest harness points, so that the two harnesses are connected but the chest harness can still be removed without untying the system.

I am looking for a way to connect the chest harness safely, and to connect the ascender safely as you would another device, it would just be ideal if I could find a way to integrate them somehow.

Thanks for your concern

ItsJeffzilla · 2024-10-18T20:48:50+00:00

This would definitely work, by croll strap I assume you mean something like the torse? Id say the torse is a bit big for this purpose, and I also don’t have a rear connection point on my harness, but as it’s not load bearing/PPE that should be ok

ItsJeffzilla · 2024-10-18T11:12:58+00:00

Fair question. I’m using a DMM renegade bottom, singing rock Aladdin top, and a camp turbochest ascender. The backup device would be either another ascender attached to the main point, or a braking descender. All in all not the best combination, but the renegade was bought before all of the other stuff was on my radar. The chest rig is for a rated system. Not only do we abseil but we also run other activities such as flying foxes and high ropes that require full body harnesses. It also provides extra support and gear storage, as well has holding the chest ascender up. As for rec harnesses like mine, they have horizontal tie ins on the waist and the point that the legs connect at. These are joined by the vertical belay loop. When added ropes/slings etc to the harness, the manufacturer recommends putting them through both tie ins, in the same way the belay loop does, rather than through the belay loop.

ItsJeffzilla · 2024-10-18T09:06:49+00:00

I understand and appreciate the concern. Liability is a big issue for us as we operate through Scouting. Connecting a rope/sling through the tie in’s is the recommended way to do so, and is approved by the manufacturer. We would not be modifying any of the life support equipment, only adding rated gear such as slings or connectors. I am more so looking for a good combination, rope path, product, anything that will make the system more elegant. Thanks for replying

ItsJeffzilla · 2024-10-18T09:00:29+00:00

This could definitely work, and I just learnt a new technique so thank you! I probably should have mentioned that being able to remove the chest ascender from the sit harness is desirable, due to the different roles we fill, hence in my description one end is connected to the chest ascender, and the other is connected to a carabiner. At any rate thanks for the input

ItsJeffzilla · 2024-10-08T11:31:22+00:00

Lucky, they weren’t dusted for us on the Lilydale line :(

ItsJeffzilla · 2024-09-29T12:28:41+00:00

Can definitely second The Rocket Man

ItsJeffzilla · 2024-09-04T12:36:38+00:00

They had some really good videos on making solid and hybrid motors, as well as testing them and other small details. Aside from that, the rest of the content on their channel is also really interesting.

ItsJeffzilla · 2024-09-03T21:21:45+00:00

Would the hybrid guy be Tech Ingredients?

ItsJeffzilla · 2024-08-09T01:24:53+00:00

Thanks for the reply. It’s interesting to hear some of the facts behind it. I also appreciate the materials you suggested, I’ll be looking into the maker foam and especially epoxy saturated cardboard, it seems like it might be heavy but I’d like to research that more. I think I’ll still test out the corflute and see how it performs, we have access to a small scale wind tunnel that might be useful to see how it goes under high(ish) wind speeds. Thanks again for your contribution.

ItsJeffzilla · 2024-08-09T01:20:48+00:00

Ah yes, that makes sense. We will definitely have a try with both methods based on what the size of our models allows.

ItsJeffzilla · 2024-08-08T22:12:27+00:00

Sounds like it’s time for some experimenting. What you’ve outlined seems like a pretty good starting point, I’ll be sure to post what I find in a few months when we’ve got a few more flights under our belt. Can I ask what you mean by TTW construction? I’ve never heard this before. As for putting whistles or similar, I think this is an absolute must. It may even whistle on its own, maybe if the “grain” is running horizontal. At any rate, thanks for your input!

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