Thanks Thanks:  0
Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Page 1 of 2 12 LastLast
Results 1 to 15 of 27
  1. #1
    Join Date
    Jan 2002
    Location
    Melbourne, Aus.
    Age
    69
    Posts
    12,745

    Default Bulk cutting of 2" hook and loop sanding discs?

    A while back there were posts on this and from memory TTIT was using a modded hole saw.

    Teeth ground off and an edge put on the hole saw?

    I have to get serious about it as I'm sick of punching out one at time with a sharpened muffler pipe.

    There's two choices.

    One is a cheapy set of hole saws to hand, spring (saw) steel but with a gap; all fit into a single top plate via lugs and recesses. Can't see that grinding the teeth off the relevant size will be all that easy and the gap might prove troublesome ... ?

    Other choice now to hand is from the local tool supplies place that had individual bimetal hole saws on sale, plus all of 20 bucks for the chuck & drill. So that would involve grinding off the HSS teeth and putting an edge on the 'drum'. Also doesn't sound like fun.

    That second choice is prob the best way to go, and I'd welcome advice about doing the mod.
    Cheers, Ern

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Age
    2010
    Posts
    Many





     
  3. #2
    Join Date
    Feb 2008
    Location
    Northern Sydney
    Age
    47
    Posts
    2,764

    Default

    Dunno Ern, but what would happen with the muffler pipe and say 5 layers of sandpaper? Would it be a disaster, or do you reckon it would work ok?

    2" holesaw shouldn't be that big a deal. The 3" ones are the buggers to get hold of.

    Cheers,
    Dave
    ...but together with the coffee civility flowed back into him
    Patrick O'Brian, Treason's Harbour

  4. #3
    Join Date
    Jan 2002
    Location
    Melbourne, Aus.
    Age
    69
    Posts
    12,745

    Default

    Thanks for the thought Dave.

    Getting one clean cut pounding on the sharpened pipe is rare, and the paw complains too much anyway. Time for horsepower rather than pawpower.
    Cheers, Ern

  5. #4
    Join Date
    Aug 2010
    Location
    ACT
    Age
    83
    Posts
    2,563

    Default

    How about making a press along the lines of the can crushers that plans appear for every now and then. Just put your sharpened pipe in and an end grain anvil underneath the sheet and give it a squeeze.
    Just a thought.
    Regards.
    Hugh

    Enough is enough, more than enough is too much.

  6. #5
    Join Date
    Jan 2010
    Location
    Melbourne
    Posts
    2,632

    Default

    Ern, have you thought about using a hollow punch? I know 50mm ones are available but can't for the life of me locate them in Melbourne. My old man has one and makes disks of carboard out of them. Can imagine they'd go through sandpaper ok.

    Other than that, If I were looking for a cheap fix, I'd use some scrap ply, add 50mm holes and sandwhich the sandpaper between and drill through the holes.


    Hope those couple of ideas help.
    -Scott

  7. #6
    Join Date
    Oct 2006
    Location
    Melbourne
    Posts
    5,271

    Default

    I have a hand press that cuts out discs of fabric. I don't know whether exhaust pipe would withstand the pressures, but a decent bit of high carbon pipe or tube with a properly dressed edge should be fit to punch out at least five at a time even in a small hand press.
    .
    I know you believe you understand what you think I wrote, but I'm not sure you realize that what you just read is not what I meant.


    Regards, Woodwould.

  8. #7
    Join Date
    Apr 2009
    Location
    Deloraine
    Posts
    283

    Default sand paper cutter

    HI RSSER
    I made my own sandpaper cutter 50mm exhaust pipe expanded to 53mm and welded 50mmx 25mm plug in top, I held it in scroll chuck and sharpend with a flat file have cut 100s without having to sharpen it i use a block of redgum end grain,I had them on the forum about 2 years a go.
    regards john.

  9. #8
    Join Date
    Dec 2005
    Location
    Emerald, QLD
    Posts
    4,423

    Default

    I think it was Hughie using the hole-saws Ern. I'm still using an old pair of scissors so I'll watch this thread to see if there are any ground breaking ideas floating around.
    .
    Updated 9th of June

  10. #9
    Join Date
    May 2008
    Location
    BELL POST HILL, 3215
    Age
    85
    Posts
    2,332

    Default Cutting The Sandpaper.

    Hi All,
    My thoughts were to get hold of a small 2 Tonne Jack, put into a base of some kind . You would have to put a foot on the Muffler Pipe, & you don't have to turn the jack upside down. Like was said, to use a piece of Red Gum or whatever, & it should do up to 8 sheets, surly.
    Made something similar many years ago, & put 2 springs on it to lift the Jack back to the start, when finished.
    Having a bit of trouble here explaining myself, but I hope you get the drift.
    Regards,
    issatree.
    Have Lathe, Wood Travel.

  11. #10
    Join Date
    Jul 2005
    Location
    Prestons Sydney
    Posts
    5,444

    Default hole saws

    Ern, Hole saws are the way to go as most are made from carbon steel with a HSS edge added. Always go for the welded ones as they have a heavy back end ideal for thumping with a hammer


    https://www.woodworkforums.com/f8/hol...g-discs-66063/


    Hole punches will set you back a few bob on the bigger sizes. Thats why I never bothered to use them. Exhaust pipe is way too soft and will deform rapidly with pressure, thats is design so it can be bent. No doubt you've found that out already.


  12. #11
    Join Date
    Feb 2009
    Location
    Bristol, UK
    Age
    64
    Posts
    1,540

    Default

    I'm the same as TTiT and using an old pair of scissors but a Registered Professional Woodturner I know uses the hole-saw method to great effect.

    As you've noted, he uses a Bi-Metal saw with the teeth ground off and sharpened edges.

    I can remember that he did not use a 50mm (2") but rather one slightly larger (52mm or 53mm) as when you grind the edge you are creating the inner diameter as the sharp edge, whereas the drilled hole will be measured to the outside edge.

    I've converted a couple of them for ball turning, but instead of buying them I blagged them off a plumber friend who had worn them out and were otherwise destined for the bin.
    Dragonfly
    No-one suspects the dragonfly!

  13. #12
    Join Date
    Jan 2002
    Location
    Melbourne, Aus.
    Age
    69
    Posts
    12,745

    Default

    Thanks for the links and tips folks.

    Dragonfly, yep, the good 'un is 54mm OD, c. 50mm ID.
    Cheers, Ern

  14. #13
    Join Date
    Apr 2005
    Location
    Bundaberg
    Age
    54
    Posts
    2,077

    Default

    Hi Ern,

    Here is a link to the sandpaper man for wad punches for 50mm and 75mm for cutting hook and loop. It would save a lot of mucking around in making them. Hope it helps. Wad Punches | The Sandpaper Man

    Cheers
    Darren

  15. #14
    Join Date
    Jan 2002
    Location
    Melbourne, Aus.
    Age
    69
    Posts
    12,745

    Default

    Thanks Darren. They look the goods.

    For the moment I'll pursue the hole saw idea having bought the bits.
    Cheers, Ern

  16. #15
    Join Date
    May 1999
    Location
    Grovedale, Victoria Australia
    Posts
    3,863

    Default 50 & 75mm Wad Punches

    If you want to get them closer to home we have them here Ern

    Just noticed you signature Ern, some nice photos of work there.
    Jim Carroll
    One Good Turn Deserves Another. CWS, Vicmarc, Robert Sorby, Woodcut, Tormek, Woodfast
    Are you a registered member? Why not? click here to register. It's free and only takes 37 seconds!

Page 1 of 2 12 LastLast

Similar Threads

  1. Hook and Loop sanding paper question
    By hughie in forum WOODTURNING - GENERAL
    Replies: 14
    Last Post: 19th May 2010, 07:11 AM
  2. Velcro Hook & loop
    By tergar37 in forum SAFETY
    Replies: 6
    Last Post: 26th April 2010, 11:21 AM
  3. Glueing hook and loop sanding thingees
    By Arron in forum WOODTURNING - GENERAL
    Replies: 14
    Last Post: 15th June 2008, 11:05 PM
  4. wet and dry - hook and loop sandpaper
    By Rowan in forum FINISHING
    Replies: 5
    Last Post: 31st December 2004, 11:56 PM
  5. wet and dry - hook and loop sandpaper
    By Rowan in forum WOODWORK - GENERAL
    Replies: 1
    Last Post: 31st December 2004, 10:24 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •