Dear all,

I have taken a break to dive another rebreather for about a year. I was a good experience and has given me some ideas on how to improve my own project, the Hunchback.

One thing that I have decided was to go back to Shearwater technology. Please don´t get wrong here: I really liked the Hammerhead. It was rock solid, however, after diving with shearwater HUD and computer I sort of like that setup. It is just a personal preference. I like the Hud and I like the OLED and the the old "GF" display as well.

Well it is time to introduce Hunchback version 9.0!! it will be a great year for the Hunchback. new technology, some new configuration and hose routing. More to come! Stay tuned in on its own page, 9.0!



//Carl

Hi folks!

Tonight I test dove the HB V9. It felt good. I have changed the CMF to a hydrogoom CMF solution to test it. It feels rock solid and worked flawlessly. I have changed some hoses to "miflex" hoeses and I have changed the position of the bottles.

Dear all,

I did my third testdive today with the HB V8. All went very well. It passed all pre-dive checks and in water checks. Balance in the water was perfect, according to buddy. All hoses feel almost perfect, however, I will do some small changes to the routing of the hoses since it does not feel 100% perfect, yet.

This dive was made with a drysuit and it felt good. Balance was good and comfort was also good. 6kg lead was used with a Diverite alu backplate in a pool.

Hi!

New pictures have been uploaded and beta3 is is ready for action. I have installed the ADV now.

Today I have spent fixing cable lenghts, getting more electronic stuff from ELFA and preparing one of the more dangerous jobs for my canister. It´s time to cut the M38x1 hole on the top for my ADV. More on this story will follow in the end of the week!

I decided today to resolder my cable connections. I have never been fond of soldering even though my father taught this subject to students all over the world. I had to start easy be testing the iron and solder on a test wire before the real deal. It all went well and the result speaks for it self! Another happy day in the rebreather shop here in Sweden has gone by and the Hunchback just gets better and better for every day that goes by.

I have now completed the first testdive. All went according to the plans. It felt very good actually, I was surprised over how easy it was to breathe, no resistance at all as far as I could tell. An ANSTI machine will determine that much better, but my impression was that it was easy to breathe. I still have some issues with cable lengths and how to route cables and hoses the "best" way so it all looks lean and mean! ;=) The BOV (which Martin from Tecme has sold me) worked flawlessly! It was a pure fun to use and in a crisis situation this will give me as a diver a few more minutes to resolve the situation with a clear head.

Dear friends of the Hunchback!

I have decided on the following:
 
I will keep the hunchback as a MCCR for while longer due to problems with space inside the canister top.

I will stop using the Fischer connectors and use regular blueglobe cable gland M16x1,5 due to problems with corrosion inside the Fischer connector and I hate the soldering that comes with Fischer connectors. The cable gland solution is easier soldering and more safe according to experts in the field.

I have added a 90 degree port on the left T-junction for the O2 bypass for the BMCL. It can also be used for diluents bypass if needed.

I will add a HUD later on this spring.
 
Keep reading the blog for updates on the project!

Hi guys!

I have been thinking about version 8 and I have realized the follwing:

1. I will keep The Hunchback as an MCCR. I have noo need for an ECCR, sure it would have been fun and all, but hey! It works as an MCCR and I have less hassle with solenoid placement and hoses etc. It will just make it all much easier and leaner. Less is more!

2. I will go back to my original placement of bottles. O2 on the left side and diluent on the right side, to keep the hoses as short and neat as possible. The bottles gives good balance to the rig and makes diving easier in many ways. It allows for neat hose placement!

That´s it! Took a while to make up my mind! ;=) Back to the dive garage!

 Have a great weekend folks! 

//Carl 

My new rebreather electronics has arrived. I have tried Shearwater electronics for a while, but I have now decided to change electronic supplier.I have now changed to Hammerhead electronics. It looks very nice and I have followed Kevins progress for years now. Well, it was about time for me to give in to his electronic solution for rebreathers, Hammerhead. All I can say is that their sales support has been excellent! It sure looks nice! I will post pictures soon when the work begins to include it into the loop. I still have to find a good solution on how to integrate the solenoid in a safe and efficient way in the canister head.