My new shearwater....

bgpartri · 12th May 2006, 04:21

I meant to respond to the minutes thing too.

When you are doing an ascent, the minutes will never work out exactly. Here's why. When you get to a stop, it will show the time at the stop in minute resolution. So if you have 15 seconds at that stop, the computer will show 1 minute. After about 15 seconds, it will clear to the next stop. Most tables don't act that way. They only have 1 minute stops. So the computer will tend to follow the GF curve a little more closely.

There is also a finite time to calculate the profile. On a normal dive with say an hour of decompression, it recalculates the decompression about every 10 seconds. It does a complete decompression to calculate the TTS, the ceiling and the time at the ceiling. So if you are at a stop that has 30 seconds to clear, it might clear anywhere from 20 to 40 seconds, but on average it will be around 30 seconds. Over the dive, it will even out to match the table quite well.

The other factor that affects it is that the computer does a perfect ascent every time it calculates the profile. It ascends at exactly 30 feet per minute, stops exactly at the stop, and maintains exactly the same ppo2. So if you are at 62 feet and have a ceiling of 60 feet, the computer will calculate that you will take 4 seconds to ascend to 60 feet, and so on. Divers never do those perfect profiles, so the computer never estimates exactly.

If you like RGBM, you might want to take a look at GAP. It will plot RGBM and GF on the same graph. You can then adjust your GF to follow RGBM to within minutes. You would need to use different GFs for different dive types. For example, if you want to match on a 300 ft dive, you need to use a GF like 15/95.

If however you see your dive times or the time and date drifting in anything other than real time, please let me know :-)

rossh · 12th May 2006, 04:26

Shearwater divelog manager - a PC program to download, view and save your diving activity.

The Shearwater divelog manager works in conjunction with the Shearwater GF Dive computer. The dive log manager will retrieve the dive data and logs from your Shearwater dive computer. Your Shearwater dive computer has this upload feature inbuilt already.

The dive log manager will save and format dives for viewing. It can print and export dive graphs in file formats of jpg, gif, bmp, and export dive data in tabbed text and csv, or print log book pages for a dive log book.

Bruce and I have worked together to produce this program. Download a demo and try for free at:

http://www.hhssoftware.com/shearwater/

louisrankin · 12th May 2006, 09:28

I have noticed on some post that people are running the shearwater and kiss handsets together. Can someone please explain how this is done, do you need to wire the kiss handsets to a Fischer connector and plug it into the HUD connection on the kidney? I have a Sports Kiss and Classic and I would be very interested in finding out how this is achieved, is it possible to do this on the Sports and Classic? Will you be able to use the HUD at the same time? And when will the HUD be available? And how much will the HUD cost.

Sorry for all of the questions I have posted this on the Yahoo shearwater group as well.

Louis

bgpartri · 12th May 2006, 13:12

Louis,

On the Sport KISS, there are three connection holes. The Shearwater GF takes one. To use two displays, you run one display through each of the remaining holes. Two of the sensors connect to the Shearwater GF and a display. The third sensor just connects to the Shearwater. You can remove the Shearwater and replace the third KISS display anytime you want.

Similarly, you can use one of the holes for the Shearwater and one for the triple HUD. The third hole is plugged. You can remove the Shearwater supplied triple connector and put the KISS displays back on in a couple of minutes if you need to.

Lynn and I are diving HUD's now, and we will have one at Inner Space. I expect to be selling them for $700 in August.

On the Classic KISS, I supply a kidney with two threaded holes so one can be used for the Shearwater and one for the HUD. Or you could use one of the holes for a single display and the other for the Shearwater.

Hmmm. I think I need to hook up a bunch of these configurations and take some pictures. There are actually a lot of choices. But we're going diving in Nanaimo this weekend, and then to Inner Space on Thursday, so it's going to have to wait until we get back.

RobPot · 12th May 2006, 13:34

Quote:

The rather flaky straps lasted all of one dive before I got some bungee cord and swapped them out.

How about some VR3 straps? (That's my plan anyway

)

Quote:

I expect to be selling them for $700 in August.

Now that is interesting, given the price of some alternatives (and the current UK exchange rate!) ...

Ben Field · 12th May 2006, 13:58

Quote: (Originally Posted by bgpartri)

I expect to be selling them for $700 in August.

Stuart! We need a new smilie- please find something suitable for :drool:

Bruce, do you have any specs for the HUD, what it does etc? Not that I need it but please- temp us with your HUD

BEN

bgpartri · 12th May 2006, 14:25

Ben,

The straps are velcro and work fine, but they have two issues in my mind. First, they keep sticking to themselves and that can be a pain when you have mitts on. Second, they have no stretch. That can be an issue if your suit compresses a lot, but I haven't found it to be a problem in practise.

I think something like the VR3 straps would work fine. But I don't like the single strap, so I would use two like I do with the velcro. I haven't been able to source the material though. Do you have a source?

I've tried some other stretch straps, but they just didn't have the holding power. I have some samples coming of some heavier stretch straps that should be here any day. If it works out, I will send them out to existing users.

We will be showing the HUD at Inner Space and I will be doing a slide show. I will publish the HUD stuff when I get back.

Ben Field · 12th May 2006, 14:30

Quote: (Originally Posted by bgpartri)

I think something like the VR3 straps would work fine. But I don't like the single strap, so I would use two like I do with the velcro. I haven't been able to source the material though. Do you have a source?

It was Rob that asked about straps, I wish I did have a source of VR3 straps.... I found a similar material in a UK Hardware store called B&Q, it is sold as "Stretchy straps" for binding objects such as tents and sleeping bags, using this I made VR3'ish straps for my SK handsets... I should post a picture, they are pretty neat.

Quote: (Originally Posted by bgpartri)

I've tried some other stretch straps, but they just didn't have the holding power. I have some samples coming of some heavier stretch straps that should be here any day. If it works out, I will send them out to existing users.

The straps I use are 25mm across and very strong, I used plastic clips for kitting/dekitting as the "stretch" effect is too strong to pull off your armj with one hand!

Quote: (Originally Posted by bgpartri)

We will be showing the HUD at Inner Space and I will be doing a slide show. I will publish the HUD stuff when I get back.

Excellent

***Beanie*** · 12th May 2006, 14:36

Quote: (Originally Posted by Ben Field)

It was Rob that asked about straps, I wish I did have a source of VR3 straps....

you can buy them I've seen them er www.divertec.net I think

scubagrunt · 12th May 2006, 14:41

excuse my ignorance here but does the $1700 model come with a HUD or is that $700 extra?

12th May 2006, 04:21	#21 (permalink)
bgpartri CEO-Shearwater Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Titan Join Date: Apr 2005 Location: Vancouver, Canada Posts: 423	Re: My new shearwater.... I meant to respond to the minutes thing too. When you are doing an ascent, the minutes will never work out exactly. Here's why. When you get to a stop, it will show the time at the stop in minute resolution. So if you have 15 seconds at that stop, the computer will show 1 minute. After about 15 seconds, it will clear to the next stop. Most tables don't act that way. They only have 1 minute stops. So the computer will tend to follow the GF curve a little more closely. There is also a finite time to calculate the profile. On a normal dive with say an hour of decompression, it recalculates the decompression about every 10 seconds. It does a complete decompression to calculate the TTS, the ceiling and the time at the ceiling. So if you are at a stop that has 30 seconds to clear, it might clear anywhere from 20 to 40 seconds, but on average it will be around 30 seconds. Over the dive, it will even out to match the table quite well. The other factor that affects it is that the computer does a perfect ascent every time it calculates the profile. It ascends at exactly 30 feet per minute, stops exactly at the stop, and maintains exactly the same ppo2. So if you are at 62 feet and have a ceiling of 60 feet, the computer will calculate that you will take 4 seconds to ascend to 60 feet, and so on. Divers never do those perfect profiles, so the computer never estimates exactly. If you like RGBM, you might want to take a look at GAP. It will plot RGBM and GF on the same graph. You can then adjust your GF to follow RGBM to within minutes. You would need to use different GFs for different dive types. For example, if you want to match on a 300 ft dive, you need to use a GF like 15/95. If however you see your dive times or the time and date drifting in anything other than real time, please let me know :-) __________________ http://www.shearwaterresearch.com Good judgment comes from experience. Experience comes from bad judgment.
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12th May 2006, 04:26	#22 (permalink)
rossh RBW Member Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jul 2005 Location: Canada Posts: 118	Re: Shearwater divelog manager. Shearwater divelog manager - a PC program to download, view and save your diving activity. The Shearwater divelog manager works in conjunction with the Shearwater GF Dive computer. The dive log manager will retrieve the dive data and logs from your Shearwater dive computer. Your Shearwater dive computer has this upload feature inbuilt already. The dive log manager will save and format dives for viewing. It can print and export dive graphs in file formats of jpg, gif, bmp, and export dive data in tabbed text and csv, or print log book pages for a dive log book. Bruce and I have worked together to produce this program. Download a demo and try for free at: http://www.hhssoftware.com/shearwater/ __________________ Regards, Ross Hemingway V-Planner Live for the X1 V-Planner VPM-B Nitrox Trimix CCR Deco planning for Technical Divers www.v-planner.com Last edited by rossh : 12th May 2006 at 04:28. Reason: typo
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12th May 2006, 09:28	#23 (permalink)
louisrankin Póg mo thóin Current Rebreather/s: Megalodon Other Rebreather/s: Sport Kiss Classic Kiss Join Date: May 2005 Location: Cambridge Posts: 315	Re: My new shearwater.... I have noticed on some post that people are running the shearwater and kiss handsets together. Can someone please explain how this is done, do you need to wire the kiss handsets to a Fischer connector and plug it into the HUD connection on the kidney? I have a Sports Kiss and Classic and I would be very interested in finding out how this is achieved, is it possible to do this on the Sports and Classic? Will you be able to use the HUD at the same time? And when will the HUD be available? And how much will the HUD cost. Sorry for all of the questions I have posted this on the Yahoo shearwater group as well. Louis
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12th May 2006, 13:12	#24 (permalink)
bgpartri CEO-Shearwater Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Titan Join Date: Apr 2005 Location: Vancouver, Canada Posts: 423	Re: My new shearwater.... Louis, On the Sport KISS, there are three connection holes. The Shearwater GF takes one. To use two displays, you run one display through each of the remaining holes. Two of the sensors connect to the Shearwater GF and a display. The third sensor just connects to the Shearwater. You can remove the Shearwater and replace the third KISS display anytime you want. Similarly, you can use one of the holes for the Shearwater and one for the triple HUD. The third hole is plugged. You can remove the Shearwater supplied triple connector and put the KISS displays back on in a couple of minutes if you need to. Lynn and I are diving HUD's now, and we will have one at Inner Space. I expect to be selling them for $700 in August. On the Classic KISS, I supply a kidney with two threaded holes so one can be used for the Shearwater and one for the HUD. Or you could use one of the holes for a single display and the other for the Shearwater. Hmmm. I think I need to hook up a bunch of these configurations and take some pictures. There are actually a lot of choices. But we're going diving in Nanaimo this weekend, and then to Inner Space on Thursday, so it's going to have to wait until we get back. __________________ http://www.shearwaterresearch.com Good judgment comes from experience. Experience comes from bad judgment. Last edited by bgpartri : 12th May 2006 at 13:16.
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12th May 2006, 13:34	#25 (permalink)
RobPot RBW Writer Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: May 2005 Location: Portishead - Gateway to the South West Posts: 183	Re: My new shearwater.... Quote: The rather flaky straps lasted all of one dive before I got some bungee cord and swapped them out. How about some VR3 straps? (That's my plan anyway ) Quote: I expect to be selling them for $700 in August. Now that is interesting, given the price of some alternatives (and the current UK exchange rate!) ... Last edited by RobPot : 12th May 2006 at 13:38.
(Online)

12th May 2006, 13:58	#26 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,774	Re: My new shearwater.... Quote: (Originally Posted by bgpartri) I expect to be selling them for $700 in August. Stuart! We need a new smilie- please find something suitable for :drool: Bruce, do you have any specs for the HUD, what it does etc? Not that I need it but please- temp us with your HUD BEN __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM! Beware Fridge Suck! www.hugsac.org.uk
(Online)

12th May 2006, 14:25	#27 (permalink)
bgpartri CEO-Shearwater Current Rebreather/s: Megalodon Other Rebreather/s: Inspiration Classic Sport Kiss Classic Kiss Titan Join Date: Apr 2005 Location: Vancouver, Canada Posts: 423	Re: My new shearwater.... Ben, The straps are velcro and work fine, but they have two issues in my mind. First, they keep sticking to themselves and that can be a pain when you have mitts on. Second, they have no stretch. That can be an issue if your suit compresses a lot, but I haven't found it to be a problem in practise. I think something like the VR3 straps would work fine. But I don't like the single strap, so I would use two like I do with the velcro. I haven't been able to source the material though. Do you have a source? I've tried some other stretch straps, but they just didn't have the holding power. I have some samples coming of some heavier stretch straps that should be here any day. If it works out, I will send them out to existing users. We will be showing the HUD at Inner Space and I will be doing a slide show. I will publish the HUD stuff when I get back. __________________ http://www.shearwaterresearch.com Good judgment comes from experience. Experience comes from bad judgment.
(Offline)

12th May 2006, 14:30	#28 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,774	Re: My new shearwater.... Quote: (Originally Posted by bgpartri) I think something like the VR3 straps would work fine. But I don't like the single strap, so I would use two like I do with the velcro. I haven't been able to source the material though. Do you have a source? It was Rob that asked about straps, I wish I did have a source of VR3 straps.... I found a similar material in a UK Hardware store called B&Q, it is sold as "Stretchy straps" for binding objects such as tents and sleeping bags, using this I made VR3'ish straps for my SK handsets... I should post a picture, they are pretty neat. Quote: (Originally Posted by bgpartri) I've tried some other stretch straps, but they just didn't have the holding power. I have some samples coming of some heavier stretch straps that should be here any day. If it works out, I will send them out to existing users. The straps I use are 25mm across and very strong, I used plastic clips for kitting/dekitting as the "stretch" effect is too strong to pull off your armj with one hand! Quote: (Originally Posted by bgpartri) We will be showing the HUD at Inner Space and I will be doing a slide show. I will publish the HUD stuff when I get back. Excellent __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM! Beware Fridge Suck! www.hugsac.org.uk
(Online)

12th May 2006, 14:36	#29 (permalink)
*Beanie* Gallery Administrator Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,311	Re: My new shearwater.... Quote: (Originally Posted by Ben Field) It was Rob that asked about straps, I wish I did have a source of VR3 straps.... you can buy them I've seen them er www.divertec.net I think __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk
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12th May 2006, 14:41	#30 (permalink)
scubagrunt CCR Diva Current Rebreather/s: Inspiration Classic Megalodon Classic Kiss Optima rEvo Other CCR Other SCR Other Rebreather/s: Not Bought Yet Inspiration Classic Inspiration Vision Evolution Megalodon Sport Kiss Classic Kiss Optima rEvo Other CCR Other SCR Join Date: May 2005 Location: Washington Posts: 441	Re: My new shearwater.... excuse my ignorance here but does the $1700 model come with a HUD or is that $700 extra? __________________ "No good deed goes unpunished!" www.silentscuba.com
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