Page 4 of 5 FirstFirst 12345 LastLast
Results 46 to 60 of 73
  1. #46
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    Bob Thanks for identifying the indexer. It is a bit hot for me to go check the numbers right now. I have my fingers crossed that they match.

    The accessories I have with the 3A all have matching numbers.

  2. #47
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    65
    Posts
    5,917

    Default

    Hello Eric,

    I can't see a drive pulley for the internal spindles in the photo of the accessories that accompanied the No.1. If you don't have one I can furnish you with a drawing of mine. Ignore the belt, it is off a Dumore TPG and it is not the correct size.

    BT

    DSCN6134 (Large).jpg

  3. #48
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    Bob


    [QUOTE=Anorak Bob;1930938]Hello Eric,

    I can't see a drive pulley for the internal spindles in the photo of the accessories that accompanied the No.1. If you don't have one I can furnish you with a drawing of mine. Ignore the belt, it is off a Dumore TPG and it is not the correct size.

    BT
    /QUOTE]

    You are correct and also part of the bracket that holds the internal spindle to the work head is missing. Luckily I have both those parts with my 3A.

    This machine did come with 2 internal grinding spindles and part brackets. So I own 3 internal grinding spindles but only have the where with all to use one.

    I would love to know how to get the correct flat belt for the internal grinding accessory.

    Eric

  4. #49
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    IMG_20180106_180323.jpgIMG_20180108_132605.jpg

    Pretty pleased with the condition of this machine. The Y ways still have machining marks on them the whole length. The bellows look to be in excellent condition too.

  5. #50
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    65
    Posts
    5,917

    Default

    Eric,

    I tracked down the belt below on US eBay not long after acquiring the No.1. It was not expensive, around ten dollars. A search on eBay a moment ago revealed nothing.

    An option might be to have a belt made. Back when I was fooling around with my Dumore TPG I had a flat belt made by Habasit over here in Malaga. Cost about forty bucks but it worked. Australasia

    Bob.

    IMG_20180108_170253894 (Large).jpg IMG_20180108_170317935 (Large).jpg

  6. #51
    Join Date
    Oct 2011
    Location
    Burnie/ Adelaide
    Age
    53
    Posts
    4,588

    Default

    Rydell belting in Dry Creek will make up endless belts. Tell them what you want and they should be able to do it.
    Michael

  7. #52
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    Thank's Michael. I have been following your progress in Tasmania. Bad news that you are having to move but hopefully you will find a better workshop space. How is the job going? engaging enough?

  8. #53
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    Following in the footsteps of Anorak Bob at So Where To Next, The Motor Rewinder? I decided to reconfigure the grinder motor on the latest acquisition.

    Whilst the motor wasn't exactly the same as Bob's it was similar in that all three of the wires in the star connection had been brought to the terminal box allbiet in the same grey piece of spaghetti. So I removed this spaghetti and exposed the wiring until the point that the three wires where no longer together.
    IMG_20180112_130450.jpgIMG_20180113_133348.jpgIMG_20180113_155017.jpg

    Then I got some silicone high temperature insulation and slid this over these wires using some heat shrink to connect on to the spaghetti that brought the individual wires out of the winding.

    IMG_20180113_163612.jpg

    Pulling this all back into the junction box. I then added some flexible wires to the end of these and epoxied the rats nest at the end of the winding into one solid lump.

    IMG_20180113_171037.jpgIMG_20180113_174256.jpg

    Then I checked continuity on the windings and made sure there were no shorts between windings and none to earth. I don't have a megger to test how good the insulation is so I just assembled the whole together ready to temporary wire up and test with a vfd tomorrow.
    IMG_20180113_203725.jpg
    I will report back when it runs.

  9. #54
    Join Date
    Nov 2008
    Location
    Perth WA
    Age
    65
    Posts
    5,917

    Default

    Very neat Eric. Workhead motor next?

  10. #55
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    It has to be made to work somehow. It looks an order of magnitude more difficult though. I have two of those motors now though so I have two chances.

  11. #56
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    The motor runs but the rear bearing is noisy. So early in the week I will swap the bearings out.

  12. #57
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    Quote Originally Posted by lamestllama View Post
    The motor runs but the rear bearing is noisy. So early in the week I will swap the bearings out.
    I replaced the bearings in the motor and put the rest of it 90% back together. At least enough to give it a decent survey. The conclusions are that there is about 4/10000" wear in the X axis and non detectable in the Y axis. The wear has a weird profile most worn about 3/4 of its travel to the right and tapering off pretty linearly in each direction from there and more wear on the back of the table than the front. So I could live with it or spend a few hundred on having the ways etc ground like I had on the 3A. I really wouldn't mind hearing the thoughts of others on this amount of wear.

    I was hoping to do a small amount of surface grinding with this grinder and I am mindful the facilities for regrinding it at a price I could afford might not remain in Adelaide indefinitely.

  13. #58
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
    Age
    66
    Posts
    3,241

    Default

    If you think that the wear warrants a regrind, then by all means do it, as you say the place may not remain in Adelaide forever, especially if you got it done at a good price.
    Is that supposed to be 4 thou or 4/10000"?
    I'm amazed you could measure someting that small without it being in a temperature controlled room, if it is the latter.
    Kryn
    To grow old is mandatory, growing up is optional.

  14. #59
    Join Date
    Jul 2011
    Location
    Adelaide
    Posts
    200

    Default

    I have new dial indicator that measures tenths of a thou .... ie 1/10000" These chunks of iron have a lot of thermal mass me handling them doesn't change their temperature easily. So yes 4/10000 of an inch wear. My 0.01mm dial indicator was showing up nearly one increment so I already knew it was around 4/10s of a thou.

  15. #60
    Join Date
    Mar 2014
    Location
    South of Adelaide
    Posts
    466

    Default

    where in Adelaide are you getting your grinding done? I only know of 1 slideway grinder in town and they defiantly wouldn't be cheap.

Page 4 of 5 FirstFirst 12345 LastLast

Similar Threads

  1. Hercus Tool and Cutter Grinder
    By Geoff123 in forum THE HERCUS AREA
    Replies: 5
    Last Post: 28th May 2015, 09:43 AM
  2. Hercus Tool & Cutter Grinder For Sale in Queensland
    By A J in WA in forum THE HERCUS AREA
    Replies: 0
    Last Post: 7th Jan 2014, 11:10 PM
  3. Hercus No.1 Universal Tool & Cutter grinder
    By A J in WA in forum THE HERCUS AREA
    Replies: 3
    Last Post: 3rd Jan 2014, 01:48 PM
  4. hercus No.1 tool and cutter grinder
    By allterrain50 in forum THE HERCUS AREA
    Replies: 5
    Last Post: 29th May 2011, 07:10 PM
  5. Hercus tool & cutter grinder
    By steran50 in forum METALWORK GENERAL
    Replies: 2
    Last Post: 23rd May 2011, 08:20 PM

Posting Permissions

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