Anyone know anything about this tool? It looks like it doesn’t use GPS and can export raw coordinates. Might be well worth a try especially with the price tag. https://moasure.co.uk/products/moasure-one

I only just found this out, and it's not published very well, so I thought I would share an FYI here. The version of Topodroid on the google play store is no longer being updated. If you want to get the latest version of Topodroid you need to download the APK directly from...

Calling out to all explorers of Derbyshire* Caves and Mines. Come join us for a day of talks where you can hear about all the underground exploits of Derbyshire both current and historical. Are you currently exploring and wondering who's got projects on the adjacent patch? Want to fill in the...

I don't expect this to be an exhaustive guide on Therion and diving and I'm not even the most experienced on this forum. As there is very little online about Therion for divers, I thought I would put together all the stuff I struggled to figure out in one place. Data The .th file is the...

Selling my Shetland attack pony. It’s a good tool for surveying digs or learning to survey but I wouldn’t recommend it for expedition cavers. Make me a sensible offer they are £195 RRP but this has seen some use and is 2 years old now.

I've been using Andrew Atkinson's Customisable Area Blocks which are great. The issue is if you put them in a sump etc the inside of the block is white which looks odd. Is there a way to have the inside of the block transparent?

Really long shot. Does anyone have a disto X2 just gathering dust they would be willing to sell to an expeditionary caver? My SAP is becoming less and less reliable. I just had a wasted dive as the bloody thing wouldn’t turn on.

Are there any modern resources out there for building radio location equipment and how it works? I'm struggling to find anything that's not a webpage from the early 90s with components that haven't been in production since then.

Does anyone have experience with the Makita DHR171 or (similar small  1.2J SDS drills)? How does it do drilling 8mm holes in limestone? I'm thinking about getting one for small jobs and at the end of a lot of rope. My DHR243 is excellent but a bit heavy to lug around if you just want to drill a...

This is my first time drawing up a survey from scratch. We have lots of different kinds of data most of it historic but the main drag of the first chamber was resurveyed by Mark Burkey, Fred Nunn and myself this trip. If anyone more experienced has any feedback on making it more readable or...

What stylus do people use for drawing surveys? I have one of the cheap ones with a fat tip but it's not that accurate.

Does anyone have a source on 3" hose and fittings that don't cost a fortune? I need probably around 40-50m of the stuff and don't want to pay nearly ?8 a meter. Sadly 2" will be too small for what I have in mind and lay flat won't work/will get trashed too quick.

I'm working on something that needs a GPRS signal up near rowter farm. I'm on giffgaff (O2) and don't get much, is anyone on a network that does get signal up there?

I?ve got a unused, probably XL (size 9 1/2) pair of dry glove gloves, way too big for my hands. Free if you can pick them up from Sheffield or the TSG.

I've been building a tool for a little while now that converts the various cave registry's in the UK into GIS type files. Curently the tool outputs KML (for google earth) GPX (for GPS devices) JSON (for programatic use) It should be trivial to add other file formats, the code is open source...

I have a full length triboard 5/4/3 size S wetsuit that I?m selling due to it being a little bit short for me. It would fit a skinny person up to 5'10. It?s not a proper semi dry but does have a ?neck seal? and zip panel to reduce flushing. It?s been underground a handful of times but in good...

I'm looking for several engineers to join the backend team at U Account benefits include: 23 days holiday + 1 additional day each year up to 28 days (not including bank holidays) Cycle to work, childcare vouchers, corporate discount on gym memberships Life insurance Policy and Employee...

https://www.decathlon.co.uk/ecuk/static/Product-Recall/P190115-ROCKY-CARABINER-Product-recall.pdf

What thread do people use for sewing oversuits? My Av suit now has several holes in it following a rather silly trip in oxlow.

Preferably around Sheffield or caver postable to TSG as I don?t have a car at the mo. They are for open water so left or right handed dosent matter but in test or likely to pass. I would also be interested if anyone has a set of 7Ls in a similar state.