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  1. Replies
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    Always love the "help me save it from scrap"...

    Always love the "help me save it from scrap" listings that then want double / triple / 10 times the scrap price
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    Over $1000 imported, you have to pay GST, any...

    Over $1000 imported, you have to pay GST, any duty (may be zero, look up tariff exemption and find the right code if there is an exemption) and a processing fee.

    Processing fee on my recent...
  3. Replies
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    1,537,956

    Sticky: What are you going to use it for? That's a...

    What are you going to use it for?

    That's a very high gantry but a short Z axis?

    Stiff would be vastly improved by triangulating the gantry uprights
  4. Replies
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    729

    Is the top really 2 inch solid? From the...

    Is the top really 2 inch solid?
    From the underside picture it looks like it could be thinner plate on top of beam and with a skirt all the way around
  5. Replies
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    1,694

    What about BT50? ISO = BT (but ISO does not...

    What about BT50?

    ISO = BT (but ISO does not have drive dogs), at least at 30 taper
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    664

    If you want an accurate dowel hole, it should be...

    If you want an accurate dowel hole, it should be reamed
  7. Replies
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    1,495

    120mm thick is not nearly enough for a 2400x1200...

    120mm thick is not nearly enough for a 2400x1200 surface plate - will sag
  8. Replies
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    1,495

    What do you want to do with it?

    What do you want to do with it?
  9. Replies
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    1,330

    Excessive tension on the blade guides can cause...

    Excessive tension on the blade guides can cause blade failure. If the guides squeeze the blade too tight, they can deform it. The teeth/ gullets should not be in the guides and so you get...
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    971

    Just use RHS / SHS steel. Epoxy and bolt on some...

    Just use RHS / SHS steel. Epoxy and bolt on some riser bars for your linear rails. Flatten them
  11. I agree with Michael - better to use wider...

    I agree with Michael - better to use wider 'shims'

    Looks like there is some soft metal between the nuts and chuck jaws - good as nuts are rarely truely flat
  12. Replies
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    3,738

    You will never stop a determined thief with time...

    You will never stop a determined thief with time and equipment (cordless grinders mean just about anything is breachable).
    But most theft is low hanging fruit, opportunistic stuff.

    A...
  13. Replies
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    1,688

    I would be wary buying a machine tool from a...

    I would be wary buying a machine tool from a seller called Fashiondesign247...

    Sometimes the scam is to build an account with dort cheap items, building a large feedback history.
    Then switch to...
  14. Replies
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    Interesting lifting mechanism, but I'm a bit wary...

    Interesting lifting mechanism, but I'm a bit wary about it.
    By pushing up, I feel you increase the torsional load on the gantry beam with any off centre load. Worst at high extension. When there is...
  15. Replies
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    2,445

    Bob, entirely true, but for someone without good...

    Bob, entirely true, but for someone without good experience with VFD, I thought best to keep it simple.

    I.e. the point is you will run into issues if you just plug a full 3 phase machine that has...
  16. Replies
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    2,445

    Are you talking about VFD (variable frequency...

    Are you talking about VFD (variable frequency drive)?

    You can run a smaller motor on a larger VFD. But within limits - some VFD will only go down to 50% of rated output for example.
    Make sure...
  17. Thread: Linear Rails

    by pippin88
    Replies
    9
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    1,110

    Brands are not interchangeable (bearing cars and...

    Brands are not interchangeable (bearing cars and rails)

    You can re-ball them, as you can with pretty much any bearing. But you need precisely the right size balls. And the right number per circuit...
  18. Replies
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    1,714

    I would be much more interested in length of...

    I would be much more interested in length of warranty for VFD than for motor.
  19. Replies
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    3,337

    What do you think the standard tolerances for a...

    What do you think the standard tolerances for a lathe are?
    Send out for machining and bolt together ain't going to hit any decent tolerance.

    Do you just want a shorter lathe?
    Buy a lathe with...
  20. Replies
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    3,337

    Manual lathe or CNC? 60mm is a large spindle...

    Manual lathe or CNC?

    60mm is a large spindle bore.
  21. Replies
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    4,672

    I buy a lot of stuff on Aliexpress Much prefer...

    I buy a lot of stuff on Aliexpress

    Much prefer AliExpress to eBay

    A couple of times an item has been missing - seller has fixed in each cause, though one insisted I pay an 10 cents for postage...
  22. Replies
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    2,981

    Yes. And make it relatively easy to remove for...

    Yes.

    And make it relatively easy to remove for cleaning.
  23. Replies
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    2,981

    I think a good quality plastic tub within a metal...

    I think a good quality plastic tub within a metal structural frame will be cheaper, easier, and won't have issues with leaking.
  24. Replies
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    2,391

    I'm surprised you have such a problem at...

    I'm surprised you have such a problem at Charlestown. When I lived in Bar Beach it was shocking, leave something uncovered for a day or two and it got a fair bit of rust, but that was a few hundred...
  25. Very generous Kryn

    Very generous Kryn
  26. Replies
    300
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    616,870

    Sticky: AliExpress search is crap I often use google...

    AliExpress search is crap

    I often use google to search within AliExpress
    Eg. 12.5mm reamer site:AliExpress.com

    Often looking through the related products below a listing will get you more...
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    BreakingTaps is a genuine guy, not someone faking...

    BreakingTaps is a genuine guy, not someone faking stuff for YouTube views. Watch his other videos, there is great stuff there. It is definitely not click bait.

    I haven't had a chance to watch the...
  28. Thread: Losing weight

    by pippin88
    Replies
    61
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    6,747

    Marc, I used the word thesis (meaning = a...

    Marc,

    I used the word thesis (meaning = a statement or theory that is put forward as a premise to be maintained or proved).
    You posted this thread, and have added further posts that a carnivore...
  29. Thread: Losing weight

    by pippin88
    Replies
    61
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    6,747

    Marc, Please note that I am not saying "you...

    Marc,

    Please note that I am not saying "you are wrong". I am suggesting that people should think critically about these issues.

    Your thesis appears to be that switching to the carnivore diet or...
  30. Thread: Losing weight

    by pippin88
    Replies
    61
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    6,747

    Marc, the link you provided does not say they do...

    Marc, the link you provided does not say they do little exercise.

    It says they do much more activity than the average in the west. Have a look again.

    To my earlier point about activity:...
  31. Thread: Losing weight

    by pippin88
    Replies
    61
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    6,747

    Modern society does NOT move more. Go back to...

    Modern society does NOT move more.

    Go back to days before widespread mechanisation of basic labour.
    The amount of energy required to do a load of washing etc etc.

    "An adult of good fitness is...
  32. Thread: Losing weight

    by pippin88
    Replies
    61
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    6,747

    There is no ONE answer. And like most things in...

    There is no ONE answer. And like most things in life, if someone tells you they have the single magic answer, they usually have another motivation (usually making money) or are a zealot.

    It is...
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    A lot of digital calipers chew through batteries...

    A lot of digital calipers chew through batteries unfortunately.

    I don't know why a true off switch is not standard.

    On most models the on/off just turns the screen on/off. Any movement will...
  34. Grahame - apologies, I missed the existence of...

    Grahame - apologies, I missed the existence of the electrical sub-forum. Thanks for moving to the appropriate area.

    I will definitely use good quality brands.

    I already have a sub-board in the...
  35. Upgrading electrical supply to shed - anyone know a decent electrician in Newcastle?

    I want to get some bigger circuits / sockets in the shed to run some decent size gear. Currently just have 10amp outlets.

    I need one 15amp, and one 32amp (or 25 amp) outlet.

    I've tried going...
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    Yes. Do it.

    Yes. Do it.
  37. Replies
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    How are you going to secure it to the trees? That...

    How are you going to secure it to the trees? That would be my major concern / the weak point.

    Or will you use steel uprights and secure to the trees for lateral support?

    4m is a long gantry....
  38. Replies
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    1,456

    New technology always brings change. Will...

    New technology always brings change.

    Will laser welding remove the need for all the other welding skills and knowledge? I doubt it
    Fit up
    Managing distortion
    Weld requirements / penetration etc...
  39. Replies
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    1,687

    Yep

    Yep
  40. My experience is that if you pull about anything...

    My experience is that if you pull about anything remotely precise, you should do it in a small clean perfectly empty room. Because otherwise you never find that bloody spring!!!
  41. Replies
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    I have not used FreeCAD due to the topological...

    I have not used FreeCAD due to the topological naming issue

    https://wiki.freecadweb.org/Topological_naming_problem

    Major efforts are underway to fix this.

    I currently use a Maker version of...
  42. Replies
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    1,755

    I've got units on a roof unfortunately. Narrow...

    I've got units on a roof unfortunately. Narrow block and no other option really.
    Issues with outdoor unit.

    Service tech put one boot on roof and didn't go further. I don't blame them as I...
  43. Replies
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    4,126

    Microsteps are for smoothness. They are not...

    Microsteps are for smoothness. They are not reliably accurate.

    There are some explanations of the electrickery psychics available via your nearest search engine that are better than I can provide.
  44. NSW Sold to Kryn

    Sold to Kryn
  45. NSW Kryn, Are you interested? Might list...

    Kryn,

    Are you interested?

    Might list elsewhere if you are not.
  46. Replies
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    9,526

    Stub drill is for non deep holes, or starting...

    Stub drill is for non deep holes, or starting holes.

    Stub drills are much more rigid.

    In CNC, often a hole is started with a stub drill then tool change for a longer drill. Helps with...
  47. NSW Quick Change Tool Post 0XA for small lathe (Newcastle)

    Quick Change Tool Post (QCTP)
    Wedge type post. From Little Machine Shop

    Suits small lathes (designed for lathes with up to 8" swing). I used this on a 7x14 lathe. Been sitting oiled in storage...
  48. Replies
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    1,131

    Insane

    Insane
  49. Thread: Project POND

    by pippin88
    Replies
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    8,245

    Put a roof on the dirty room and storage above?

    Put a roof on the dirty room and storage above?
  50. There is a thread on practical machinist about...

    There is a thread on practical machinist about DIY differential levels

    https://www.practicalmachinist.com/forum/threads/building-differential-electronic-levels.291287/
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