PaulHam's 3D Printed In-Line Add-on

Show and tell for your homebrew nv projects. DIY 'Stickies' here too.
User avatar
paulham
Posts: 1186
Joined: 09 May 2012, 12:35
Location: Potters Bar, Hertfordshire

PaulHam's 3D Printed In-Line Add-on

Post by paulham » 26 Mar 2016, 00:02

Hi all,

Longtime no speak!

I am probably well out of the loop nowadays, I have been popping back every once and a while to have a little nose around but I’ve hardly contributed.

This post is going to show you an inline addon I designed in November 2014 after getting inspiration from 22-250Jock’s inline addon he shared in February 2014. In May 2014 he upgraded his design using extruded aluminum unibox/unicase from LincolnBinns, so I decided to give it a go using my 3D printer.

Image

Check out 22-250jock’s original design (& his version 2 on page 16) -

Preliminary Tests
These were my first tests using a low resolution near eye display from a hacked apart ‘spy-car’ toy.

Strapped to a Watec
Image

Image

Then strapped to a flo-plast e700 DSA

Image

Image


The idea to use a mirror

Image

Awful bulky design
Image

Image

Image

Image


Parts Required
Pulsar DSA
KPC-e700
M12 Lens (cant find the link)
VF-2C
Mirror (from telescope)
Rocker Switch
Battery
Potentiometer 2.2k
Screws (No.6 x 5/8",25)
Set of 3d printed parts


3D View


3D Printed Parts
Here you will find the STL files (common 3D printing object files)

3D Printing STL’s


The build

Image

Image

A few stringy bits on the inside of the print due to my printer calibration, but these can be removed with a sharp knife or just left alone.

Image

The VF-2c has a SMD momentary push button to turn on the device, you will need to bypass this switch, I used some cable from eBay called ‘KYNAR WIRE‘ as it is very thin (but any wire will do).

Image

Mount for VF-2c controller board.
Image

Phono connector removed
Image

Image

Image

Image

Side panel can be removed to give access to the brightness and contrast buttons to fine tune in the field tests.
Image


Image

I had to print a couple of spacers to angle the camera a bit further back to get the reticle in the middle, I found that this was trial and error to get it good.
Image

Image

Toy’d with the idea of wireless charging.
Image

Image

Front plate was designed a little too small, hence the unaligned bottom plate.
Image

Main power switch, LCD brightness control & Battery charging connector.
Image

Image

Top
Image

Bottom
Image

I didn’t put a video out connector on to this design, so I don’t have any DVR footage to show, but I can say that it works very well and doesn’t disrupt your shooting position too much. I use this kit with a T20 every time I go out with the .223

Many details I have probably missed out, but if there are any questions please feel free to ask and it should trigger my memory.

Cheers
Paul
Last edited by paulham on 26 Mar 2016, 11:40, edited 1 time in total.

User avatar
some bloke
TRADER MEMBER
Posts: 7481
Joined: 27 Jan 2012, 16:14
Location: Cornwall or Leicester

Re: PaulHam's 3D Printed In-Line Add-on

Post by some bloke » 26 Mar 2016, 01:14

That's very good Paul, it great seeing how people can take things to that level.
Image

Radagast
junior librarian
Posts: 2616
Joined: 04 Apr 2013, 10:51
Location: Sydney Australia

Re: PaulHam's 3D Printed In-Line Add-on

Post by Radagast » 26 Mar 2016, 01:23

Is the lens you are using the one recommended by Rolaids?
viewtopic.php?f=29&t=11350
http://www.ebay.com/itm/16mm-16-mm-CCTV ... 418ae30856

I'm assuming the mirror came from a telescope erecting prism:
http://www.ebay.com/sch/i.html?_odkw=45 ... m&_sacat=0
There are two varieties one which is all plastic, the other with metal side plates, which Jock used. Do you recall which type you chopped up?

Is the Pot that Splatty sells as a dimmer switch suitable?
viewtopic.php?f=9&t=10983

Do the STL files include an upsized front plate and the camera spacers?

Embedded video isn't working. Is it this one?
https://www.youtube.com/watch?v=hXnQcvJgit8

User avatar
22-250jock
Posts: 2347
Joined: 07 Dec 2012, 17:53
Location: Burgess Hill, west sussex

Re: PaulHam's 3D Printed In-Line Add-on

Post by 22-250jock » 26 Mar 2016, 07:29

watcha Paul.......

nice to see you back mate :wave:

looks like you're starting to get to grips with the printer :thumbup:

posting the files will make a lot easier for members to build their own,

great stuff mate

cheers john
“When guns are outlawed, only the Government will have guns. The Government - and a few outlaws. If that happens, you can count me among the outlaws.”
― Edward Abbey,

User avatar
jdk1
Posts: 1944
Joined: 13 Aug 2012, 17:11
Location: west kingsdown kent

Re: PaulHam's 3D Printed In-Line Add-on

Post by jdk1 » 26 Mar 2016, 07:52

Outstanding paul :clap: , you got there in the end mate and its good to see you back

phoenix
BRUCE ALMIGHTY
Posts: 4686
Joined: 09 May 2012, 14:40
Location: Aberdeen

Re: PaulHam's 3D Printed In-Line Add-on

Post by phoenix » 26 Mar 2016, 08:15

Brilliant work Paul - Glad to have you back :thumbup:


Cheers

Bruce
LAND ROVER - THE WORLD'S WORST 4X4 BY FAR

User avatar
fizzbangwhallop
Posts: 1864
Joined: 18 Oct 2011, 11:27
Location: north herts

Re: PaulHam's 3D Printed In-Line Add-on

Post by fizzbangwhallop » 26 Mar 2016, 08:34

Yeah.....good to see you back Paul!!

Nice work!! :thumbup:


Atb

Fizz
8-)
Image

A correct grip on the butt & cheekweld is imperative for accurate shooting. :crazy: :lol:

User avatar
paulham
Posts: 1186
Joined: 09 May 2012, 12:35
Location: Potters Bar, Hertfordshire

Re: PaulHam's 3D Printed In-Line Add-on

Post by paulham » 26 Mar 2016, 10:41

Hi Radagast,

Thanks for the questions, I have annotated below -
Radagast wrote:Is the lens you are using the one recommended by Rolaids?
viewtopic.php?f=29&t=11350
http://www.ebay.com/itm/16mm-16-mm-CCTV ... 418ae30856

No it isnt that lens and i cant find the link to where i ordered it from either. 22-250Jock had posted about this lens first, perhaps he has the link?


I'm assuming the mirror came from a telescope erecting prism:
http://www.ebay.com/sch/i.html?_odkw=45 ... m&_sacat=0
There are two varieties one which is all plastic, the other with metal side plates, which Jock used. Do you recall which type you chopped up?

Yes that is correct, the mirror is from a telescope. If i recall correctly I used the mirror from a Bresser Telescope (sold by lidl in the UK). The housing was plastic, and the diagonal case behind the mirror was slide out. The mirror is nothing special, I did look into front surface mirrors but this one is just a normal mirror. Any size/shape mirror can be used, the 3D printed part which holds the mirror will just need to be changed to fit.

Is the Pot that Splatty sells as a dimmer switch suitable?
viewtopic.php?f=9&t=10983

It might be suitable, but Splatty's one looks more bulkier and im not sure if it will fit with the lens that I used. The pot I used is the 3 pin variety, its a 2.2k Linear Potentiometer, quite expensive @ £9.28


Do the STL files include an upsized front plate and the camera spacers?

I don't think the STL's include the upsized front plate as I don't think I ever went back to fix the error. Ill try to fix it and ill upload the file. EDIT- It seems that the front plate didnt need to be upsized, it was just a alignment issue when i first put it together.
I didn't include the camera spacers because this was trial and error. anything could be used just to push the camera lens around.


Embedded video isn't working. Is it this one?
https://www.youtube.com/watch?v=hXnQcvJgit8

Yeah thats the one! Its showing as embedded on my computer?
Last edited by paulham on 26 Mar 2016, 11:42, edited 2 times in total.

User avatar
paulham
Posts: 1186
Joined: 09 May 2012, 12:35
Location: Potters Bar, Hertfordshire

Re: PaulHam's 3D Printed In-Line Add-on

Post by paulham » 26 Mar 2016, 10:43

Cheers for the welcome back guys!

Its great to see all the same friendly names still actively participating!

Radagast
junior librarian
Posts: 2616
Joined: 04 Apr 2013, 10:51
Location: Sydney Australia

Re: PaulHam's 3D Printed In-Line Add-on

Post by Radagast » 26 Mar 2016, 11:57

Thanks for the reply. Sorry for being rude and just peppering you with questions. It's good to have you back!

Post Reply