• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.
  • Several Regions have held meetups already, but others are being planned or are evaluating the interest. The Calgary Area Meetup is set for Saturday July 12th at 10am. The signup thread is here! Arbutus has also explored interest in a Fraser Valley meetup but it seems members either missed his thread or had other plans. Let him know if you are interested in a meetup later in the year by posting here! Slowpoke is trying to pull together an Ottawa area meetup later this summer. No date has been selected yet, so let him know if you are interested here! We are not aware of any other meetups being planned this year. If you are interested in doing something in your area, let everyone know and make it happen! Meetups are a great way to make new machining friends and get hands on help in your area. Don’t be shy, sign up and come, or plan your own meetup!

Search results

  1. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All, The inside machining on both valve body halves is now complete and some new simple aligning fixtures were machined up for the next operation which is the locating and the drilling/tapping of the two half body six attachment screws. They will be 3-48 NC which is in rare use today but is...
  2. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All, Next is the machining of the steam and shutoff handle passages in the two front half body halves. It is a lot of setup work as the body halves have different features on each side where one has to reverse the part and then pick up a previously drilled through hole to complete the...
  3. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All, Proceeding with laying out the front half bodies. This is not so straight forward as described in the LBSC construction article as it requires some thought and preparation. First, one needs a truly rectangular stout backing block which is true and square on all sides. Then one has to...
  4. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All, Moving on to the front half valve body machining. On the initial setup, everything is a straight forward concentric turning operation so I did not take any photos here. However, sometimes I just do things to prove that I can do it, so this involved a thin slicing operation on a very...
  5. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi Don, And to add to your comment, having really sharp cutting tools. Probably up to 50% of the issues I have had in the home shop over the decades are not having sharp enough cutting tools. Don't get me started on that topic.
  6. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All. Up next for machining.
  7. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All, Just to quickly mention, with all of the above under my belt, the second valve body half spigot machining was a breeze. I was even able to use the thumb screw push plate in the 4 jaw chuck directly saving a lot of time and effort. So now onto machine the remaining two front valve body...
  8. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All, Finally, to the threading operation itself. The special made up threading tool itself had first to be set square to the spigot, set on centre height and be of the correct form. I have included just one photo to illustrate one of these operations. I wasn't going to risk using power for...
  9. C

    It Looks So Easy and Straightforward ON Paper But...

    Yes, you could do it that way but you would still need to make the offset 60 degree cutter to start as close to the shoulder as possible. The limit, as stated by others, is 1/2 of the pitch of the thread. I do not have any shoulder recess either at the moment for strength considerations as if I...
  10. C

    It Looks So Easy and Straightforward ON Paper But...

    Hi All, Preparing to thread the spigot 1/8 NPT. I spent an entire week preparing the various possible toolbits which could be used. The spigot threading arrangement here is rather unique as with the part (spigot) being recessed within the 4 jaw jaws, one needs to use an internal threading...
Back
Top