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  1. #1
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    Default Wadkin CC Dust Chute

    Having recently bought this Wadkin CC radial arm saw for parts

    aCC11.jpg aCC3292.jpg CC 3292 (test 55576) of 1956.

    I found that the dust chute, missing from a lot of CC saws, was all present and correct. The dust chute has three main parts, and a mounting bracket.

    aCC6.jpg aCC4.jpg aCC5.jpg

    The mounting bracket, and two of the main parts, are manufactured of steel plate and sheetmetal. The third main part, the elbow, is an aluminium casting.

    For the sake of anyone wishing to replicate the dust shute (and I know of two OWWMers who are interested) I'm intending to photograph and draw each of the parts - over the coming weeks.

    Here is how the the saw blade "docks" in the business end of the chute - and for comparison, how it's done on the Robinson EX/E.

    aCCNo.jpg aRob7.jpg Both saws have 18" blades.

    But that's where the similarities end. On the Wadkin the dust chute is just an add-on (hence they get taken off and lost), on the Robinson it appears to form a hinge, and therefore is an intergral part of the machine.

    aCC2.jpg aCC1.jpg

    More to follow.

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

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  3. #2
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    Default

    Wow , interesting comparison.

    That's the hinge for the dust chute on the Robinson !! I saw it before but just thought "Huh, whats that ?" And didn't try to solve my question of what it was.

    Very Impressive .

    Rob

  4. #3
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    Default

    I'm up for this documentation Vann.
    I have to make one up for the wadkin AC .
    Many thanks for your efforts ..

    Melbourne Matty.

  5. #4
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    Default

    Nice looking gear there Vann.

    I realise you guys are purists and want to restore these venerable machines back to as original as possible but if you want maximum air flow the naked ended chute should be replaced with a bell mouth hood attached to 150 mm ducting that does not throttle down to anything smaller. Bell mouth hoods (BMH) collect more dust from further out in front of any hood. This is especially important when the blade is fully extended.
    Inserting a complete BMH in such a restricted space is a tricky business but from what I can see it looks like about a 3/4 of a BMH can be used especially as a BMH will still work even if there is a saw slot cut through it

    We have an old Nolex RAS at the mens shed and this is what we plan to do with the dust collection for this machine. Some deference to the old school nature of these machines can be obtained by suitable paint matching of any DC used. BMH have a bit of a steam punk look about them anyway so they won't look out of place on this old gear.

    BTW the grill is there only for when small pieces are being sanded otherwise it can be removed.

    BMHguard.jpg

  6. #5
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    Default Part 1 - Dust Chute Bracket

    Quote Originally Posted by BobL View Post
    Nice looking gear there Vann.

    I realise you guys are purists and want to restore these venerable machines back to as original as possible...
    Yup, only purists need read on .

    First the most boring bit: the bracket that supports the dust chute:

    aCC22.jpg aCC21.jpg

    The bracket is bolted on to the turntable using 3 No. 5/16" BSW x 1" long, hex. head bolts.

    aCC23.jpg

    Details as below. Kindly excuse the handdrawn print (with wonky circles), I no long have access to CAD, nor a decent drawing board.

    CC Dust Chute Mounting Bracket.jpg

    Cheers, Vann.
    Last edited by Vann; 24th October 2016 at 07:33 AM. Reason: Missing dimensions in drawing added.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

  7. #6
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    Default Part 2 - Dust Chute Fixed Piece

    Second, the piece of duct fixed to the support bracket.

    This piece has two main components: the duct portion; and a strengthening tapping plate, spot welded together. There is also a screw (with wingnut) welded to the duct. It bolts to the Mounting Bracket (see part 1 above) using 4 No. 1/4" BSW x 3/4" long, hex. head bolts.

    aCC31.jpg aCC30.jpg

    The duct portion is a fabricated rectangular hollow section, with a tapping plate inside the top to receive the four mounting bolts.

    aCC32.jpg aCC33.jpg aCC34.jpg Look Ma, Wadkin grey under the mounting bracket .

    Detailed dimensions below.

    CC Dust Chute Fixed Piece.jpg CC Dust Chute Tapping Plate.jpg

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

  8. #7
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    Default

    Thanks for the effort putting this here Vann, Its actually a very handy thing storing info like this in a thread like this. Its easier to find than storing it somewhere on a desk top computer I think . You can be anywhere and access it .

    Some, the type not into machines may think "why would you need this info any where but once"
    You should see the things we pull up on our phones when having a meal !! Matt Pete and Cam , its not rubbish , all iron .
    Either that or Dirty paper as Jack calls it I think .Machine catalogues.

    Its just the info I need seeing as my CC is missing the dust collection parts.

    Rob

  9. #8
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    Default Robin Hood's brother, Bell Mouth.

    Quote Originally Posted by BobL View Post
    ...if you want maximum air flow the naked ended chute should be replaced with a bell mouth hood...
    Sorry BobL, I didn't mean to dismiss your information out of hand. Some of us want maximum performance, others (like me) are prepared to sacrifice a little performance for the sake of originality (we're the fanatics).

    This thread was intended for the latter group. However I think your post is a valuable addition, as it gives useful information, and choices. Thank-you.

    Quote Originally Posted by auscab
    Thanks for the effort putting this here Vann, Its actually a very handy thing storing info like this in a thread like this. Its easier to find than storing it somewhere on a desk top computer I think . You can be anywhere and access it...

    ...Its just the info I need seeing as my CC is missing the dust collection parts.
    I've been working on the next part this arvo. Got one drawing done (just gotta double-check some dimensions), one more to go. Also got to take some more photographs. Tomorrow maybe...

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

  10. #9
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    Default Part 3 - Dust Chute Hinged Piece

    Third, the piece of duct hinged off the fixed piece - that the saw blade docks into.

    Again this piece has two main components: the duct portion; and a wooden cover, bolted on top using 4 No. 1/4" BSW x 1" long, countersunk slotted machine screws.

    The duct portion is a fabricated rectangular hollow section, and hinges over the fixed piece of duct.

    aCC40.jpg aCC46.jpg aCC43.jpg aCC44.jpg aCC45.jpg Look Ma, more Wadkin grey under the wooden cover .

    The hex 1/4" BSW nuts are not welded to the duct, and have a flat washer on the inside.

    Detailed dimensions below.

    CC Dust Chute Hinged Piece.jpg CC Dust Chute Wooden Cover.jpg

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

  11. #10
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    Default

    Two details I've overlooked: The hinge and the wingnut

    aCC61.jpg aCC62.jpg

    The hinge is 2 1/2" long x 1 5/8", and held by tinmans rivets.

    aCC65.jpg

    The wingnut screws onto a 1/4" 20tpi BSW bolt, 1" long, welded to the fixed duct section.

    aCC63.jpg

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

  12. #11
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    Default Part 4 - Dust Chute Cast Elbow

    This cast aluminium elbow is fixed to the end of the Fixed Piece (ref. Part 2).

    I doubt anyone will want to go to the trouble of making patterns to have one cast, but fabricating something that looks similar may appeal to some here.

    aCC51.jpg aCC52.jpg Exposed and hidden side views.

    aCC53.jpg aCC54.jpg Views on ends.

    aCC55.jpg aCC56.jpg aCC57.jpg Back and top views.

    Dimensions to follow (in a future post).

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

  13. #12
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    Default Part 4b - Dust Chute Cast Elbow Dimensions

    Quote Originally Posted by Vann View Post
    ...Dimensions to follow (in a future post).
    Screen Shot 2017-01-03 at 5.16.57 PM.jpg

    By some quirk I've dimensioned this upside down - the round end points down at 60 degrees, not up as suggested above (must be the "down under" view ).

    Right, that's completed. Now I can package up the elbow and send it to Jack in Canada.

    Cheers, Vann.
    Gatherer of rusty planes tools...
    Proud member of the Wadkin Blockhead Club .

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