1. The Forum Rules have undergone some minor changes and updates.  Please take the time to read them; it will only take a couple of minutes of your time. By doing so, you lessen the chance of incurring the wrath of the moderation team or making yourself look foolish to other members.

    90% of users posting adverts in the Sales forums need to be reminded to read the rules as their posts are wrong.  This is unnecessarily time-consuming and will no longer happen - if your advert doesn't follow the Sales Rules it will be deleted and you'll have to start all over again.

    To close this box once you've read it (and the Rules), click on the X in the top right-hand corner.

    Thank you.

    AGF Staff



    Dismiss Notice
  2. A reminder of one of the Forum Rules:

    'Behaviour

    Do not make inappropriate or offensive posts - including threats, harassment, swearing, prejudice, defamation, deliberate insults or name-calling, other negative remarks about this forum, its moderators and administrators or your fellow members. Even if this is just your own personal opinion, RESPECT YOUR FELLOW MEMBERS.'

    There have been changes made to our censoring software in an attempt to help with this growing problem.

    Click the X in the top-right-hand corner to dismiss this notice.
    Dismiss Notice
  3. Dear members,

    Our membership (like our country) consists of people from all walks of life; different in far more ways than can be listed here and each with a different view based on their experience of life - regardless of their colour, religion or cultural heritage. Every single person in the UK has been born of mixed race – we are a multi-coloured and multi-cultural country.

    As many of you are aware there are a handful of individuals amongst this membership that persist in making provocative, inflammatory, racist and otherwise offensive comments. This has been happening across the forum to a certain degree but is most especially prevalent in the Adult section.

    The moderation team has tried to stay on top of this, however unfortunately because of the ‘offensive’ nature of much of its content we don’t monitor the Adult section quite as much as perhaps we should. As a result much of this behaviour has gone unnoticed unless it has been reported to us. While the team always intended to take a "light touch" approach to the Adult section it would seem that some people aren’t quite adult enough to be left unmonitored after all.

    This behaviour is, and always has been against Forum Rules as well as the specific stipulations of the Adults forum and it will no longer be tolerated. We feel it's time to draw a line in the sand and as such from this point onward offenders will receive an immediate and permanent ban from the forum.

    In order for us to achieve our goal of restoring the forum to the friendly and tolerant place it once was, we ask that ALL members be mindful of the content they post and help us to stop unacceptable behaviour by using the 'Report' tool at the bottom of any offending post - the results of which can be seen only by Admin/Moderators.

    You should all receive a copy of this message by PM. 

    To close this message box, click on the 'X' in the top-right-hand corner.

    Dismiss Notice
  4. Hotmail block emails from us entering your inbox. Unless you can setup a safe sender you will not get activation emails from the forum. Please use an alternative provider or complain to Hotmail.
    Hotmail addresses include.

    @Hotmail.co.uk @Hotmail.com @outlook.com @Live.com
    Dismiss Notice
  5. Postings on Politics, Religion & Controversial Off-Topic Material

    The majority of users do not want to read about these subjects and people have left the forum as a result of it – this is after all an 'Airgun' Forum. It’s all very well to say they don’t have to read it if they don't want to, but as most of us use the ‘New Posts’ button there is no easy way to avoid it.

    All AGF staff members are in favour of people being able to discuss what they want, but we have to draw the line somewhere if it is upsetting other users. We don’t want to read about these topics either.

    IMPORTANT- The discussion of politics and religion is no longer allowed anywhere on the forum (including the Adult section).  The only exception is if it's airgun related - they must be put in the Airgun Related Politics section..

    We will not tolerate bullying or personal attacks, racism or any other offensive 'isms'. we will remove these topics from the forum, we will not give you an area where you can abuse each other. We will not hesitate to ban offenders.

    To clear this text box, click on the 'X' in the top right-hand corner.

    Dismiss Notice

Todays Tinkering - Home Made Dividing Head

Discussion in 'Technical' started by Halinfax, Sep 12, 2021.

  1. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

    Messages:
    6,259
    Likes Received:
    15,559
    Location:
    Halifax
    Gentlemen.....

    How many times have you wanted to drill some holes in summat round at say 180 degrees, or 120 degrees... ???

    Not all of us have a rotary dividing head and milling machine so necessity being the "Mother of invention"...

    I came up with this cheap and very effective method of getting the correct angle between holes on a barrel that I recently drilled.

    The items used for this little tool are;-

    1 x 360 degree Helix school protractor.
    1 x bit of 4mm perspex (to beef up the thin protractor)
    1 x bit of double sided sticky tape.
    1 x bit delrin for the main body of the tool (drilled and bored to a specific bore, OR, inserts can be made for "multi bore options")
    2 x M3 x screws (main fixing after setting up)
    1 x M3 grub screw.... (clamping to bar/barrel)
    A bit of Araldite to beef up the outer un-supported section of protractor)

    Setting up is simple as long as you get everything equal and concentric and by using the double sided sticky tape, it gives you an option to make fine adjustments before drilling and tapping through the protractor body to the delrin main body.

    Then bore out the necessary diameter and there you go.

    Set the workpiece up in a vice or grooved bed, set the gauge up and line the 0 mark with a pointer.. drill as necessary and then rotate the workpiece to the required angle...

    SIMPLES....

    The full thing.
    20210912_190222.jpg

    Drill and bored to specific diameter
    20210912_190230.jpg

    M3 screws and permanent fixing
    20210912_190239.jpg

    Side profile on the barrel 20210912_190302.jpg

    Top profile on the barrel.
    20210912_190319.jpg


    .. AND THE SET UP IN OPERATION....
    20210911_093925.jpg


    20210911_093942.jpg
     
  2. 1260engineer

    1260engineer The Terminator's Armourer

    Messages:
    7,841
    Likes Received:
    13,538
    Location:
    Wiltshire
    No don't like it ...far to blummin clever :D
    couldn't you find a wooden one :D

    Ps that is rarther good :thumb:
     
    Seasicksteve and Halinfax like this.
  3. vinnyp

    vinnyp Plinkin ain’t easy !

    Messages:
    2,093
    Likes Received:
    3,850
    Location:
    The Moon Nr Lancashire
    I like it :up:

    It would come in handy (I think :confused:) if I needed to drill a hole into the end of a barrel for one of those screw in front sights?

    Hmmmmm :rolleyes:

    :thumb:
     
  4. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

    Messages:
    6,259
    Likes Received:
    15,559
    Location:
    Halifax
    Heyup 1260... I wanted an Imperial Degree protractor as it was a 1/2" barrel.. I had to settle for a Metric Degree protractor instead!!!!!
     
    Vard and 1260engineer like this.
  5. 1260engineer

    1260engineer The Terminator's Armourer

    Messages:
    7,841
    Likes Received:
    13,538
    Location:
    Wiltshire
    2 x 1/2 makes 180.. 4 x 1/4 makes 360 :D Im old too :facepalm:
     
    Halinfax likes this.
  6. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

    Messages:
    6,259
    Likes Received:
    15,559
    Location:
    Halifax
    WOW.. you know your maths...

    How many beans make 5????????
     
    1260engineer likes this.
  7. 1260engineer

    1260engineer The Terminator's Armourer

    Messages:
    7,841
    Likes Received:
    13,538
    Location:
    Wiltshire
    Maths ....... Cake ..I have to get a cake to work out division .... then i get to eat it . Heinz zee german knows about beans :D
     
    Halinfax likes this.
  8. 1260engineer

    1260engineer The Terminator's Armourer

    Messages:
    7,841
    Likes Received:
    13,538
    Location:
    Wiltshire
    :) So Hali when you going to set about making your own rifle mate . And dont even think about fobbing me off .
    I really think you should join the club :) your certainly good enough . Ive seen your work and its top class :thumb:
     
    Halinfax likes this.
  9. Halinfax

    Halinfax Full time tinkerer and general all round nice guy

    Messages:
    6,259
    Likes Received:
    15,559
    Location:
    Halifax
    Thanks 1260... I think to do that mate,I would need a well equipped workshop.... and not have clients asking me to fix them instead of my tinkering bits...

    Once an engineer.. ALWAYS an engineer

    Having a questioning, methodical and analytical mind helps me in my day to day life, let alone my tinkerings...
     
    shergar and 1260engineer like this.
  10. 1260engineer

    1260engineer The Terminator's Armourer

    Messages:
    7,841
    Likes Received:
    13,538
    Location:
    Wiltshire
    I built my first ones doing all my turning and milling on a lathe . nothing you aren't well capable of Hali and you certainly know your way around rifles . I think you could build a very fine rifle thats for sure .
     
    Halinfax likes this.
  11. mikeyhall1

    mikeyhall1 BRIT SEALS - M & M Products - TbT

    Messages:
    49,865
    Likes Received:
    64,704
    Location:
    Essex
    Genius mate
     
    Halinfax likes this.
  12. TCMINTY

    TCMINTY Active Member

    Messages:
    41
    Likes Received:
    41
    Location:
    Durham
    Great idea Hali luv owt like this, everydays a school day, keen to see what's next :thumb:
     
    Halinfax likes this.
  13. Missed_Again

    Missed_Again Busy Member

    Messages:
    837
    Likes Received:
    1,368
    Location:
    Essex
    Great idea :thumb:

    I would say anyone wanting to replicate could make it without needing the delrin collar and simply use a couple of dabs of hot glue to hold it in place on the barrel which can then be peeled off once drilled.

    Not taking away the ingenuity of the OP though :)
     
  14. ajohn

    ajohn Chewing Things Over

    Messages:
    2,784
    Likes Received:
    1,351
    Location:
    S.B'ham
    I've done something similar just with a lathe. I needed a central hole on something I'd turned up. ;) Not gun work.

    So put a piece of square steel in the toolpost with some sticking out. Square that to the axis of the lathe. Put the drill size needed in the chuck and drill through the steel. Then when finished turning etc use the steel as a drill guide with a hand drill with the steel set parallel with the axis of the lathe.

    This is a better version of another item that can be used but no mention of min diameter. Stevenson blocks on the same page but more for a pillar drill or miller
    https://www.arceurotrade.co.uk/Cata...m0g-1H7WrDKtXI_ED-crDJC7tEhlp01xoCZWcQAvD_BwE

    Usually a better source of cheaper chinese tooling. It's tough to always be.
     
  15. Bozz

    Bozz Posting Addict

    Messages:
    1,163
    Likes Received:
    765
    Location:
    Rotherham
    I think he should make his own rifle too, I could just see it now "WORLDS FIRST ALL BLUE PETER RIFLE MADE FROM OLD PALLETS AND DOUBLE SIDED STICKY TAPE WINS WORLD AIR RIFLE COMPETITION" It would be fantastic don't you think. Graham
     
    Halinfax likes this.
  16. blklab

    blklab Engaging Member

    Messages:
    447
    Likes Received:
    330
    Location:
    rct
    Hal you is a conjurer and not hiding with slight of hand either just real, well done again Hal
     
  17. Paul Allen

    Paul Allen Well-Known Member

    Messages:
    88
    Likes Received:
    53
    Location:
    Burton on Trent
  18. Meal Dot

    Meal Dot Keyboard Hero

    Messages:
    2,009
    Likes Received:
    2,888
    Location:
    South Wales
    You is a proper tinkerer, that's for sure. :thumb:
    Also: Anyone who makes their own dividing head deserves a medal, even if it's made of chocolate.
     

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice