Free 186 More Best Homemade Tools eBook:  
Get 2,000+ tool plans, full site access, and more.

User Tag List

Page 1 of 3 1 2 3 LastLast
Results 1 to 10 of 24

Thread: Scale Model Precision Grinding Vises

  1. #1
    Supporting Member old_toolmaker's Avatar
    Join Date
    Dec 2017
    Location
    Cape Coral, FL
    Posts
    579
    Thanks
    647
    Thanked 442 Times in 180 Posts

    old_toolmaker's Tools

    Scale Model Precision Grinding Vises

    This is my first attempt at posting on this site for over two months since I suffered a stroke and seizure back on 10-31-2018. I am slowly recovering and It sure feels good to be back on this site although I am not yet making chips out in the shop.

    I built this set of scale model precision grinding vises about 50+ years ago based on the well known Herman Schmidt vise. The larger vise is 2/3 scale and the smaller one is 1/2 scale. I have used them since they were built and they still serve me well today. They are precision ground to size and square to within .0002". Enjoy!!
    Attached Thumbnails Attached Thumbnails Scale Model Precision Grinding Vises-dick-vise-.jpg   Scale Model Precision Grinding Vises-dick-vise-b.jpg   Scale Model Precision Grinding Vises-dick-vise-c.jpg  

    186 More Best Homemade Tools eBook
    Last edited by old_toolmaker; Dec 28, 2018 at 07:41 PM.
    Dick


    Links to some of my plans:

    https://www.homemadetools.net/forum/...965#post105972 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

  2. The Following 21 Users Say Thank You to old_toolmaker For This Useful Post:

    aphilipmarcou (Dec 31, 2018), DIRTYJOHN (Jan 6, 2019), high-side (Dec 31, 2018), HobieDave (Mar 15, 2020), Jon (Dec 28, 2018), Metallurg33 (Jan 1, 2019), mwmkravchenko (Dec 31, 2018), Paul Jones (Jan 1, 2019), PJs (Jan 2, 2019), primy (Jan 7, 2019), rendoman (Jan 1, 2019), rossbotics (Jan 2, 2019), Seedtick (Dec 31, 2018), steamingbill (Dec 31, 2018), threesixesinarow (Dec 28, 2018), Tonyg (Jan 2, 2019), Toolmaker51 (Apr 3, 2022), tooly (Mar 19, 2019), Tule (Jan 1, 2019), UncleBob (Feb 17, 2019), walgui (Mar 20, 2019)

  3. #2
    Supporting Member
    Join Date
    May 2013
    Posts
    36
    Thanks
    30
    Thanked 33 Times in 10 Posts

    steamingbill's Tools
    Hey Old_Toolmaker,

    They look very decent.

    Am puzzled about you folk that own surface grinders - do you make the parts to within plus 0.005" on the mill and the lathe and then transfer the job to the surface grinder to bring in the final surfaces to 0.0002" ?

    Or is it possible to carve things on the grinder from scratch ? ie Do you start off with a roughing wheel to get a block to +0.005" and then change to a fine wheel to finish ?

    Any good web sites or books or youtube videos you can recommend to someone who knows nothing about surface grinders ?


    ........ and Happy New Year to you ..... keep on recovering .....

    Bill

    2000 Tool Plans

  4. #3
    Supporting Member aphilipmarcou's Avatar
    Join Date
    Dec 2016
    Location
    new zealand
    Posts
    58
    Thanks
    134
    Thanked 49 Times in 26 Posts

    aphilipmarcou's Tools
    Beautiful work Dick. Hope you can spend more time in the shop, it will speed up your recovery too.

  5. The Following 2 Users Say Thank You to aphilipmarcou For This Useful Post:

    old_toolmaker (Dec 31, 2018), PJs (Jan 2, 2019)

  6. #4
    Supporting Member mwmkravchenko's Avatar
    Join Date
    Nov 2017
    Location
    Perth Ontario Canada
    Posts
    1,001
    Thanks
    5,080
    Thanked 370 Times in 262 Posts
    Wishing you a speedy recovery Dick. Like the grinding vises. Well made and very well finished.

  7. The Following 2 Users Say Thank You to mwmkravchenko For This Useful Post:

    old_toolmaker (Dec 31, 2018), PJs (Jan 2, 2019)

  8. #5
    Supporting Member
    Join Date
    Aug 2016
    Posts
    635
    Thanks
    1
    Thanked 187 Times in 166 Posts

    wizard69's Tools
    Very nice work Dick! Beautiful really.

    I have a question though, is there any wisdom in trying to make these out of 4340 HT? I have a round bar of this material but to be honest it is a challenge to machine. I’ve made a few small parts out of it and let’s put it this way, it is unforgiving when it comes to feed and speed mistakes. The other option is to buy some 4140 or similar material, the bar however only cost a few bucks.

  9. The Following 2 Users Say Thank You to wizard69 For This Useful Post:

    old_toolmaker (Dec 31, 2018), PJs (Jan 2, 2019)

  10. #6
    Supporting Member ncollar's Avatar
    Join Date
    Oct 2012
    Posts
    354
    Thanks
    23
    Thanked 180 Times in 126 Posts
    Dick
    Thanks for sharing with us that you are on the mending side.
    A speedy recovery and a Healthy and Happy New Year.
    Nelson

  11. The Following User Says Thank You to ncollar For This Useful Post:

    old_toolmaker (Dec 31, 2018)

  12. #7
    Supporting Member high-side's Avatar
    Join Date
    Jun 2018
    Posts
    143
    Thanks
    2,327
    Thanked 74 Times in 49 Posts
    Quote Originally Posted by steamingbill View Post
    Hey Old_Toolmaker,

    They look very decent.

    Am puzzled about you folk that own surface grinders - do you make the parts to within plus 0.005" on the mill and the lathe and then transfer the job to the surface grinder to bring in the final surfaces to 0.0002" ?

    Or is it possible to carve things on the grinder from scratch ? ie Do you start off with a roughing wheel to get a block to +0.005" and then change to a fine wheel to finish ?

    Any good web sites or books or youtube videos you can recommend to someone who knows nothing about surface grinders ?


    ........ and Happy New Year to you ..... keep on recovering .....

    Bill
    Bill,
    Generally, you make your parts on your mill or lathe, and leave it oversize by several thousandths. Transfer your work to the grinder and bring it down to your final size.
    Pat

  13. The Following User Says Thank You to high-side For This Useful Post:

    steamingbill (Jan 2, 2019)

  14. #8
    Supporting Member ncollar's Avatar
    Join Date
    Oct 2012
    Posts
    354
    Thanks
    23
    Thanked 180 Times in 126 Posts
    Dick
    Thanks for sharing with us that you are on the mending side.
    A speedy recovery and a Healthy and Happy New Year.
    Nelson

  15. The Following 2 Users Say Thank You to ncollar For This Useful Post:

    old_toolmaker (Dec 31, 2018), PJs (Jan 2, 2019)

  16. #9
    Supporting Member ncollar's Avatar
    Join Date
    Oct 2012
    Posts
    354
    Thanks
    23
    Thanked 180 Times in 126 Posts
    Quote Originally Posted by steamingbill View Post
    Hey Old_Toolmaker,

    They look very decent.

    Am puzzled about you folk that own surface grinders - do you make the parts to within plus 0.005" on the mill and the lathe and then transfer the job to the surface grinder to bring in the final surfaces to 0.0002" ?

    Or is it possible to carve things on the grinder from scratch ? ie Do you start off with a roughing wheel to get a block to +0.005" and then change to a fine wheel to finish ?

    Any good web sites or books or youtube videos you can recommend to someone who knows nothing about surface grinders ?


    ........ and Happy New Year to you ..... keep on recovering .....

    Bill
    Bill
    Everything's made to an oversize state for more than one reason. A tool like the vises Dick created I am sure he heat treated it and then went to the grinder. The grinder takes off thousands to get it accurate and square. Grinding is the finishing step in tool making.
    Nelson

  17. The Following User Says Thank You to ncollar For This Useful Post:

    steamingbill (Jan 2, 2019)

  18. #10
    Supporting Member old_toolmaker's Avatar
    Join Date
    Dec 2017
    Location
    Cape Coral, FL
    Posts
    579
    Thanks
    647
    Thanked 442 Times in 180 Posts

    old_toolmaker's Tools
    steamingbill,

    When tool building and I intend to precision grind, I will normally mill oversize and leave .005" grinding stock per side for finishing to size. It is possible to plunge grind from the solid and I have done that also on ocassion, but for larger flat surfaces it is usually not practical to do so. I will usually use a 46 grit H hardness 7" diameter x 1/2" x 1-1/4" I.D. aluminum oxide wheel for most things.
    Thank you for asking.
    Dick


    Links to some of my plans:

    https://www.homemadetools.net/forum/...965#post105972 OFF-SET TAILSTOCK CENTER PLANS
    http://www.homemadetools.net/forum/s...995#post112113 SMALL TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/l...994#post112111 LARGE TURRET TOOL POST PLANS
    http://www.homemadetools.net/forum/m...383#post110340 MINI-LATHE CARRIAGE LOCK PLANS
    http://www.homemadetools.net/forum/s...191#post106483 SMALL QC TOOL POST PLANS
    http://www.homemadetools.net/forum/q...849#post119345 QUICK CHANGE LATHE TURRET
    http://www.homemadetools.net/forum/m...949#post119893 MINI LATHE COMPOUND PIVOT MODIFICATION

  19. The Following 3 Users Say Thank You to old_toolmaker For This Useful Post:

    PJs (Jan 2, 2019), steamingbill (Jan 2, 2019), Toolmaker51 (Apr 3, 2022)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

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