How To Reduce Slop On QCTP (Tool Post) Of Your Lathe - Woods Creek Workshop

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  • Опубликовано: 16 окт 2024
  • How to reduce slop (backlash) on your quick change tool post (QCTP) on your lathe.

Комментарии • 68

  • @watcherwatchmen7785
    @watcherwatchmen7785 3 месяца назад

    Thanks for the video. I had to watch your video to help me figure out how to disassemble mine. The only weak point on these tool posts is the threads on the lever handle. Mine snapped off flush with the toolpost. Since I needed to use my lathe to repair it, and I couldn't use my lathe without my toolpost I was in a pickle. I ended up milling off two opposing sides flat so I could open and close it with a large adjustable wrench. Now that I got it apart, I'm taking measurements and going to make a copy of the part.

  • @BruceDWolcott
    @BruceDWolcott 7 месяцев назад

    This was such a practical improvement and your explanation was good!

  • @ActiveAtom
    @ActiveAtom 5 лет назад +2

    Good time to be here, backlash is a thing we cannot have much of but still do in our micro-machining world. Lance & Patrick.

  • @tommccully2109
    @tommccully2109 3 года назад

    I caught your "subscribe" message. Still laughing. I had already subscribed. Love all your videos. Good lighting and explaining. Thanks.

  • @bhein67
    @bhein67 5 лет назад +1

    nice modification. I just recently made my own QCTP for my 8 x 16 mini lathe and went with a cam/piston design for simplicity and it worked very well for me.

  • @eyuptony
    @eyuptony 5 лет назад +1

    There's a lot of unseen machine work in that wedge type tool post compared to my Dicksons tool post. Unbelievable, great content.

  • @ronkellis769
    @ronkellis769 7 месяцев назад +1

    Great video. I can't understand why some people feel compelled to remark on why they won't do something. As well as slop in tightening, slop affects how far the handle travels when loosening. The result is when fully loosened, the handle can be over the dovetails parallel to the ways. The end result is the removal of the tool holder is difficult. Have you done any work to reduce slop in the loosening direction?

  • @tattoos1988
    @tattoos1988 4 года назад

    Thanks for sharing your video my toolpost has been driving me crazy I have 30thou movement and now I can rectify that thanks to your help all the best stay safe

  • @CraigsWorkshop
    @CraigsWorkshop 5 лет назад +1

    Nice. I may look at mine and get a measure on how much backlash there is. Mine's a Bostar, and I don't /remember/ there being much, but now I'm curious! Cheers, Craig

  • @TheRecreationalMachinist
    @TheRecreationalMachinist 4 года назад

    I had no idea that that's what was inside (some) QCTPs. Thanks for sharing 👍

  • @SHMIDTEY
    @SHMIDTEY 3 года назад

    Thanks for the video! I made a couple washers for mine by parting them off some brass rod, no tail support, just turned the OD, drilled and bored the ID, and used the Joe Pie method of "just go for it" when parting. 0.15 and 0.30, turns out using both of them wound up being the perfect amount! I somehow hit a magical balance between absolutely no slop (not counting the slop in the actual dovetail threads), and not too stiff either. It feels like a much more expensive tool post now 😂

  • @schwartzenheimer1
    @schwartzenheimer1 5 лет назад

    Good problem solving! Making a thin washer like that is surprisingly hard, and you might want to share how you did it. I'm sure your viewers would appreciate it.
    Thanks for the video!

    • @bkailua1224
      @bkailua1224 5 лет назад +2

      You sandwich the thin stock between thick stock and machine it. Joe Piy shows how to do it on his channel.

  • @christofix
    @christofix 5 лет назад

    I just find your channel trough your comment on another video. Man this video is awsome to watch! i'm going to follow you from now on!

  • @DudleyToolwright
    @DudleyToolwright 5 лет назад +1

    Really interesting and enjoyable video. I like the subtle subscribe suggestions hidden all over the place.

  • @ryebis
    @ryebis 2 года назад +1

    Not sure if my dense head missed it, why is that backlash bad ? Does it result in inconsistent tool offsets when tightening ? I have a piston type tool post and all I really care about is the repeatability of the tool tip's position.

  • @MikeBramm
    @MikeBramm 5 лет назад

    Simple solution, very nice. Keep 'em coming.

  • @pickwizard-aka-Stevie
    @pickwizard-aka-Stevie 3 года назад

    Well worked out, will check my tool post today now.

  • @jimsvideos7201
    @jimsvideos7201 3 года назад

    Neat bit of work. I'll have to examine the little one I have.

  • @LarsLondian
    @LarsLondian 3 года назад +1

    Great video thanks for Sharing.
    Take Care.

  • @michaelrosenlof1084
    @michaelrosenlof1084 4 года назад

    Great Upgrade Yuchol Nicely Done-Thanks!

    • @woodscreekworkshop9939
      @woodscreekworkshop9939  4 года назад

      Michael Rosenlof thanks. I see you’re catching up on videos. 😁

    • @michaelrosenlof1084
      @michaelrosenlof1084 4 года назад

      Woods Creek Workshop I keep saying, okay...just one more and one more after that ! 😁

  • @mohabatkhanmalak1161
    @mohabatkhanmalak1161 4 года назад

    Nicely done repair, thanks for posting.

  • @Sc7056-s9z
    @Sc7056-s9z Год назад

    Nice job! Easy fix once shim is machined.

  • @RockingJOffroad
    @RockingJOffroad 5 лет назад +1

    Question, what is the problem with having slop in that part of the tool post? I just found your channel and subbed!

    • @woodscreekworkshop9939
      @woodscreekworkshop9939  5 лет назад +2

      Thanks for subscribing! Play creates more play, like loose pin enlarges the hole. But more importantly FOR ME, I wanted it to feel more precise in my hands. If I slide a lever, the mechanism should slide and it gets annoying when you have a mile of slack.

  • @at0mix197
    @at0mix197 3 года назад

    The one I use almost daily is an Aloris QCTP 50 or 60 (uses DA holders) the nut however is NOT left-hand threaded.

  • @pauldevey8628
    @pauldevey8628 5 лет назад

    Just discovered you. Great channel!

  • @jeffanderson1653
    @jeffanderson1653 5 лет назад +1

    Good video.
    I'm going to make a prediction though. There will be an Aloris in your future.
    I had a cheapo that came with my 1941 South Bend 13". I was so frustrated with that thing. I bought a Phase II. Much better than the other but not an Aloris.
    Now I have a CXA Aloris. It has changed my life :) There is nothing wrong with the Shars holders IMHO

  • @jagboy69
    @jagboy69 3 года назад

    2 questions.. What brand is that tool post and what size is it? Thanks man.

    • @woodscreekworkshop9939
      @woodscreekworkshop9939  3 года назад +1

      It’s BXA size and I purchased from Precision Matthews, but it wasn’t private labeled for them, same as other imports. Hope this helps.

    • @jagboy69
      @jagboy69 3 года назад

      @@woodscreekworkshop9939 Thanks bud. I'm dumping my aloris AXA, I think she's had her day and tired. I have a brand new HHIP CXA but I think it's too damn big for my 13x38. That's why I'm considering a BXA. When you gonna ditch the compound? Seeing guys part with the feed engaged makes me jealous!

    • @woodscreekworkshop9939
      @woodscreekworkshop9939  3 года назад +1

      @@jagboy69 I’ve thought about ditching the compound, or at least make it optional. I really should do it.

    • @jagboy69
      @jagboy69 3 года назад

      @@woodscreekworkshop9939 Do it and keep it simple! A lot of people I bet would follow in your footsteps.😉

    • @jagboy69
      @jagboy69 3 года назад

      So guess what showed up today? The same sloppy ass bxa chinese toolpost!🙄 I think i'll try option A and machine it instead of making a thin shim for it.🤞

  • @Caughtitoutdoors
    @Caughtitoutdoors 4 года назад

    Thanks for sharing this video. Gonna do the same to mine.

  • @bluehandsvideo
    @bluehandsvideo 5 лет назад

    Great video!! ......although I really want chips now. lol

  • @harlech2
    @harlech2 3 года назад

    Nice mod to that "Mom's" brand QCTP.

  • @eclecticneophyte2581
    @eclecticneophyte2581 3 года назад

    I should check my Phase II (AXA) Aloris clone. I think it's also from China, but with maybe some/better QA/QC(?) Anyway, great video. I like the Mickey Mouse ending.

  • @metalworksmachineshop
    @metalworksmachineshop 5 лет назад

    Nice work..

  • @geppettocollodi8945
    @geppettocollodi8945 Год назад

    So, what have you accomplished? The small play has no impact on the repeatability of locating the tool.

  • @dahut3614
    @dahut3614 4 года назад

    The set screws on my Chinese tool holders scare me. They're very tapered and the unthreaded portion ends-up being inside the threads on the holder with a full height tool installed. I need to find some that fit better.

  • @ninthm00n
    @ninthm00n 5 лет назад

    Great content. more vids please.. Love the Subscribe flash aka ThisOldTony.

  • @bobboldman1189
    @bobboldman1189 5 лет назад

    Ideally for longer ware a brass shim would have been better, BUT, we in most cases work with what we have!

    • @woodscreekworkshop9939
      @woodscreekworkshop9939  5 лет назад

      Those are stationary parts, no rotation or any other movement. A simple shim 👍🏼

    • @gwkdad
      @gwkdad 4 года назад

      @@woodscreekworkshop9939 I beg to differ, when tightening the post, the "scroll" as you call it is forced up against the shim. It's not much but there is still a little bit of rotational friction. I would still prefer a hardened steel shim over soft brass...

  • @chuirios365
    @chuirios365 4 года назад

    Nice!

  • @houseofbrokendobbsthings5537
    @houseofbrokendobbsthings5537 4 года назад +1

    Yup single lathe households are always a single failure away from hand filing - LOL.

  • @vanguardcycle
    @vanguardcycle 5 лет назад

    'help me' bahahahaha 😂

  • @cannonball666
    @cannonball666 5 лет назад +1

    Slop in the handle has no effect of how sturdy the post holds the tool holder, but if it makes you feel better by all means it's your time to waste.

    • @gwkdad
      @gwkdad 4 года назад +1

      But it does effect how far the handle travels. So no time was wasted on this mod at all. I've found people who accept slop tend to do slop work. People who like precision in their tools tend to do better work. I can guess what camp you're in...

  • @juliusvalentinas
    @juliusvalentinas 3 года назад

    Get Multifix no such problems there.