The world of model and hobby engineering

Subscribe
The Modelling Hub Logo

The world of model and hobby engineering

Subscribe
Buy Latest Issue

Forums

Help

Register

Log in

Machining Simplex smokebox saddle

Advert
New Replies
Report Bug
Help/FAQs

Machining Simplex smokebox saddle

Home › Forums › Beginners questions › Machining Simplex smokebox saddle

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • 23 October 2013 at 18:45 #133476
    StirlingSingle
    Participant
      @stirlingsingle

      Hello,

      I have set up my saddle on the vertical mill for fly cutting the 5" diameter. However I am having trouble. I think I may need a boring head. any recommendations?

      All the best,

      Stirling.

      23 October 2013 at 18:45 #6925
      StirlingSingle
      Participant
        @stirlingsingle
        23 October 2013 at 18:57 #133479
        Russell Eberhardt
        Participant
          @russelleberhardt48058

          A boring head is the easiest way to do it. I used a 2" Soba boring head but any one should do.

          If you haven't seen the site have a look at the Simplex build pictures here although he doesn't show that operation there is lots of good info. there.

          Russell.

          23 October 2013 at 18:59 #133480
          Sub Mandrel
          Participant
            @submandrel

            Hi Stirling,

            It is the devil's own job to set a flycutter accurately to a diameter, as you don't have two opposite points to measure across.. A boring head allows you to make incremental changes and 'creep up' on the right size, and also as it is graduated you can see how big a change you are making.

            That said, if you can set the flycutter somehow, the actual mechanics of the cutting are probably more rigid. If you start sightly off-centre with the fly cutter, you can move the work across once the diameter is right.

            Neil

            24 October 2013 at 07:43 #133521
            StirlingSingle
            Participant
              @stirlingsingle

              Many thanks for all the info.

              All the best,

              Stirling

              26 October 2013 at 01:19 #133705
              julian atkins
              Participant
                @julianatkins58923

                it is quite an easy casting to file to size using the smokebox material as a gauge. to machine it you will need quite a complicated set up and clamping arrangement IMHO – in the time taken to set it all up and make the clamps you could file it to size. much easier to fabricate out of 6 pieces of brass.

                cheers,

                julian

              • Author
                Posts
              Viewing 6 posts - 1 through 6 (of 6 total)
              • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

              Latest Replies
              Report Bug
              Code of Conduct
              Help & FAQs
              Advert

              Latest Replies

              Home › Forums › Beginners questions › Topics

              Viewing 25 topics - 1 through 25 (of 25 total)
              Viewing 25 topics - 1 through 25 (of 25 total)

              View full reply list.

              Advert

              Latest Issue

              Subscribe
              Buy Latest/Back Issues

              Newsletter Sign-up

              Latest Replies