Newbie needs some nv guru advice for first diy build...

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satrapus
Posts: 29
Joined: 26 Oct 2014, 22:56
Location: London

Newbie needs some nv guru advice for first diy build...

Post by satrapus » 01 Dec 2014, 00:27

I'm thinking about embarking on a diy nv dsa build adventure...

I'm going to base the system on:
http://nightvisionforumuk.com/viewtopic.php?f=29&t=5077

My questions:
1) Is the Pulsar Challenger GS or G2 DSA the best choice for a generic attachment that would fit different scopes?
It seems a better bet than the FloPlast and electrical tape.

2) I often hunt in rain and snow. Can I make the lcd waterproof? Can the screens be bought as sealed units?
Btw I'm going with a 3.5" to maximise run time.

3) The build in the above link seems to be based on the NiteSite design and all of them are suitable for all calibres.
Is there a chance my diy build could stand up to 30.06 recoil?

4) I will use either my t50 or t67ir as illumination. They're rather large but I think they'll fit in front of the screen.

Any advice or suggestions are much appreciated.
Would love to hear from people who have home made nv on large cal rifles.
:wave:

Radagast
junior librarian
Posts: 2617
Joined: 04 Apr 2013, 10:51
Location: Sydney Australia

Re: Newbie needs some nv guru advice for first diy build...

Post by Radagast » 01 Dec 2014, 21:00

The Dipol DSA is probably better quality, but a lot more money. It's sold in the UK as the Cobra Merlin DSA.
The Pulsar DSA is a decent unit and popular because they are half the price of the Dipol.

Both products are available here:
http://stores.ebay.com/USTAS/_i.html?_fsub=4

For ease of assembly, you will want an E700 adapter from Marky610 / Nite Tek. These are sold through Sure24& fit the Dipol DSA:
http://www.sure24.co.uk/nite-tek-kpc-e7 ... r-kpc-e700
If you use the Pulsar DSA then a bushing is required to fit the E700 Dipol adapter to the Pulsar DSA:
http://www.sure24.co.uk/kpc-e700nt-b-bu ... ek-housing

Obviously you will want an E700 camera with the IR filter removed. Again Sure24 is the source. I found it cheaper to buy from them and have them ship it to Australia, rather than buy locally or from the USA.
http://www.sure24.co.uk/kpc-e700pub-16b ... c-internal

Or Sure sell the Pulsar DSA, Nite-tek housing, bushing & E700 as a kit:
http://www.sure24.co.uk/kpc-e700pulsar- ... dsa-scopes

I'm not aware of any guaranteed way of making the screen watertight. Some Bloke sells a snap in screen housing for those that want to build spotters or scopeless units. It may be possible for you to mount your batteries in the housing with an external power jack. Silicone the screen into the housing and then silicone around the edges of the screen. I don't warrant this as a workable idea. You will need a 5 inch screen.
viewtopic.php?f=29&t=8646

Sure24 sell a 5 inch screen, I don't know if its the one that fits Some Blokes housing.

If you are outside of the EU then you will save the VAT tax off of your Sure24 order.

Marky's Nite-Tek add on which is basically a commercial version of the E700 camera build, using a near eye display instead of a screen, has been successful on a .243.

My first attempt at a build was this:
viewtopic.php?f=29&t=5307
It may give you some hints.

satrapus
Posts: 29
Joined: 26 Oct 2014, 22:56
Location: London

Re: Newbie needs some nv guru advice for first diy build...

Post by satrapus » 02 Dec 2014, 18:49

Thanks for the detailed advice mate :thumbup:
It all makes sense on paper.

My only question is why you think I need a 5" screen.
All the NiteSite systems use a 3.5".

ATB

Radagast
junior librarian
Posts: 2617
Joined: 04 Apr 2013, 10:51
Location: Sydney Australia

Re: Newbie needs some nv guru advice for first diy build...

Post by Radagast » 02 Dec 2014, 20:27

The housing sold by some bloke only fits a 5inch screen. The ns200 is an older design, the larger screens became available after it was designed. The newer units have much higher resolution, useful for longer shots.
They are only marginally larger than the 3.5inch unit due to a smaller bezel.
Unless you are going to buy a high resolution screen and driver from an electronics hobby supply and build your own housing for it, I don't see a use for the 3.5 inch units.
The 3.5 inch
reversing screens are not high resolution.

Radagast
junior librarian
Posts: 2617
Joined: 04 Apr 2013, 10:51
Location: Sydney Australia

Re: Newbie needs some nv guru advice for first diy build...

Post by Radagast » 02 Dec 2014, 20:41

If you look in the 5 inch monitor thread you will see that Jirka has a screen housing that appears waterproof. Some Bloke also confirms that the Sure24 5 inch monitor fits his snap in housing.

satrapus
Posts: 29
Joined: 26 Oct 2014, 22:56
Location: London

Re: Newbie needs some nv guru advice for first diy build...

Post by satrapus » 04 Dec 2014, 12:35

Ok so a 5" lcd it is :thumbup:
Is 800x480 resolution the norm?

I rather like the look of this build but it's way too expensive and there's no fun in buying it ready made:
http://www.ebay.co.uk/itm/261675011173

Radagast
junior librarian
Posts: 2617
Joined: 04 Apr 2013, 10:51
Location: Sydney Australia

Re: Newbie needs some nv guru advice for first diy build...

Post by Radagast » 04 Dec 2014, 12:59

800 x 480 is the best you will get without spending stupid money.
The screen in the link is a 4.3 inch screen so, IIRC 640 x 480. Not bad, I have one, but the 5 inch screens are better.
The add appears to use the Flowplast method of making a camera housing coupled with a Pulsar DSA.

Basically its a good quality home build and suitable for someone who isn't interested in building their own.

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