Page 6 of 8 FirstFirst 12345678 LastLast
Results 76 to 90 of 113
  1. #76
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    Elan - a first pass at a reproduction front plate image - kind of 'frankensteined' from different parts of your supplied images, and also some stuff remade from scratch. It isn't exact, and it is not perfect by any means, but something to start with to see if all those darn crosshatches can be done, 'n' stuff. Hopefully, I get some time this week to monkey with toner transfer and etching it. EDIT: I deleted the initial image I uploaded here and replaced it with one that had the 'D-10' on it. Missed that!


    frontlogo.jpg


    Greg.
    Attached Images Attached Images

  2. #77
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    1,075

    Default

    Maybe not "perfect" but that's a bloody good effort

  3. #78
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    Would not have been possible without those pics and rubbings. Thanks.

  4. #79
    Join Date
    Feb 2014
    Location
    Werribee, Melbourne
    Posts
    177

    Default

    Yes, - that does look pretty good!

  5. #80
    Join Date
    Sep 2012
    Location
    York, North Yorkshire UK
    Posts
    6,439

    Default

    Hi Greg,

    I agree with everybody ! Bloody good. Now if that was a silk screen image you could make oodles of them.
    Best Regards:
    Baron J.

  6. #81
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    Hi all, I hope you and your respective families are all well.

    Time for a small update on the B.A.D.P.

    Replacement motor painted and mounted. It is still a fraction high and interferes with the top box, but a few small risers to the top box will solve that. For sure better than the other ...


    IMG_20200719_183545.jpg


    I done some more work on the machine plates. I tidied up the front image somewhat, getting some more accurate text placement and sizing. Not perfect, but, probably good enough. It is quite a time investment and, as they say, "this ain't a museum piece".


    frontlogo2.jpg


    A mock up on the machine to make sure the size is right and sympathetic with the existing rivet holes:


    IMG_20200718_183432.jpg


    Some trials on the plate itself. Maybe I might have etched a little too long, so some more experiments required, but definite progress. The 'wide border' on the pieces is because I have no means to trim the plates (I have some tin snips, but they kind of ruin things if trying to cut more than about 4cm). I haven't figured exactly how to cut them yet, but I might end up sandwiching them in something and doing it on the mill.


    IMG_20200719_165753.jpg


    At least I think I am narrowing in on something that works.


    In other news, I started prep of the first pulley blank. The workpiece is 7.5" diameter and my lathe sure does not swing that over the carriage! .. so some wrangling required. The 8" 4 jaw looks enormous on this lathe! But, pretty slow turning .. and pretty slow progress ...


    IMG_20200717_182324.jpg


    In trying to marry up my pulley-measurements-taken-from-other-machines with the documented standards for v belt pulleys, I think I've concluded really that Waldown have not gone by the letter for the 'A' section v belt pulleys. More like .. "whatever you can fit under the lid". Fair enough. So, in terms of pulley dimension, I'll just follow as best I can my measurements and that'll be it.

    Greg.

  7. #82
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
    Age
    71
    Posts
    5,942

    Default

    That label is fantastic, unless you had an original next to it you'd be hard pressed to pick the difference.
    Kryn
    To grow old is mandatory, growing up is optional.

  8. #83
    Join Date
    Jul 2006
    Location
    Athelstone, SA 5076
    Posts
    4,255

    Default

    ditto what Kyrn said!!!

  9. #84
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    First pulley done (except for keyway). I started with the smallest / easiest of the three - the motor pulley.

    IMG_20200725_180902.jpg IMG_20200726_102853.jpgIMG_20200726_112007.jpgIMG_20200726_122351.jpgIMG_20200726_132712.jpgIMG_20200726_175952.jpg

  10. #85
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    71
    Posts
    6,458

    Default

    A masterful job. Well done Greg.

    Bob.

  11. #86
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    Thanks Bob - that took a full day of nibbling away at a large-ish piece of stock. The other pulleys are somewhat larger, so, I need a good chair at the lathe I think!

  12. #87
    Join Date
    Jul 2006
    Location
    Athelstone, SA 5076
    Posts
    4,255

    Default

    Very nice...did you work standard A section or AX

    AX are cog type. AX are cog type and a little deeper.

  13. #88
    Join Date
    Aug 2008
    Location
    Melbourne
    Age
    34
    Posts
    1,075

    Default

    Quote Originally Posted by StrayAlien View Post
    Thanks Bob - that took a full day of nibbling away at a large-ish piece of stock. The other pulleys are somewhat larger, so, I need a good chair at the lathe I think!
    I see you're using carbide, so feed harder and take a deeper cut if you don't want a mess of stringy stuff. In machining terms, ally is just shiny wood, so a 2mm depth should be no problem

    EDIT: Nevermind, the holder looked like a carbide holder on my phone

  14. #89
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    Hi Eskimo, great question. Thank you. Answer: Dunno!! I'm working to the measurements I've taken from three other machines actually - a 2-pulley 8SN, a 3M and 2M. My measurements are likely not very precise - but as long as it works out that it all fits under the lid, I have room for eccentric movement of the intermediate pulley with the lid closed, I get a good speed range, _and_ I only need two belts then we're sweet. The measurements I took of each pulley were total height, height of each sheave (I hope my terminology is correct) and outer / inner diameter of each sheave.

    The angle is 17deg for 'A', as that is the belts used (and I may do 18 for the larger sheaves - advice appreciated), but in terms on standards, nope. If I look up standards on 'A', like depth of V and distance between pulley centre lines and so, they are not similar to the Waldown pulleys I have measured. I think the Waldown pulleys are a 'A section creation to use a standard belt V and to get the pulleys under the lid and fitting in the space.

    The measurements I have taken bear little resemblance to stuff like this: https://www.engineersedge.com/v_belt_sheave.htm. My 1941 Machinery's handbook, oddly, does not specify A section (the smallest it refers to is 11/16" belt width). As an example, in that link the width of the sheave groove across the top is 0.6123" with a depth of 0.6125" and a between-centers distance of 0.75". My measurements of the Waldown pulleys have about 0.5" across the top, a depth of about 0.4375" and a between-centers distance of 0.625". I say 'about' because when I measured the pulleys they were still on the machines and I had limited time. But ... the three machines were all _roughly_ the same.

    I am hoping I haven't committed some pulley-machining crime out of naivety, but I figure I would just try to reproduce what existed as best I could.

    All advice appreciated.

    Greg.

  15. #90
    Join Date
    Aug 2015
    Location
    Melbourne, Australia
    Posts
    843

    Default

    Hi Elan, my lathe is 1hp motor with belt drive. I took as deep a cut as I could without thing slipping or chattering! Yes, it is kind of (very!) disappointing as Alu is so soft, but at that diameter 1hp/belt struggles. It has sure made me rethink the 2hp VFD thing I mentioned earlier in this thread.

    I already have serpentine belts on it rather than leather - which made a world of difference, but being an old girl (1941) there is a bit of oil about and that gets onto the lathe pulleys and countershaft. Such is life. As someone once said ... working on old machines teaches you patience.

    EDIT: I just reread your post. Not using carbide. An eccentric engineering 'diamond' tool holder with cobolt HSS.
    EDIT EDIT: I just saw your EDIT!

Page 6 of 8 FirstFirst 12345678 LastLast

Similar Threads

  1. Waldown drill press.
    By stix012 in forum EBAY, GUMTREE, and other off forum sales sites
    Replies: 0
    Last Post: 19th Nov 2018, 10:35 AM
  2. Jones and shipman boat anchor
    By welder in forum METALWORK GENERAL
    Replies: 6
    Last Post: 10th Mar 2017, 09:18 PM
  3. Waldown Drill Press Mods
    By Petip in forum METALWORK GENERAL
    Replies: 7
    Last Post: 5th Jul 2015, 01:34 PM
  4. Waldown drill press
    By eskimo in forum EBAY, GUMTREE, and other off forum sales sites
    Replies: 1
    Last Post: 10th Sep 2014, 10:55 AM
  5. Waldown Drill Press
    By KevM in forum METALWORK GENERAL
    Replies: 24
    Last Post: 1st Sep 2011, 01:31 AM

Posting Permissions

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