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Type: Posts; User: BobL

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  1. Replies
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    What diameter are we talking about? RE: Using...

    What diameter are we talking about?

    RE: Using Dowel.
    I did this with some Al tubing that was ~40 mm in diameter and up to 400mm long (yes it was a wind chime :oo:) using a length of 25mm dowel...
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    Thats OK in a big shed but in a smaller shed a...

    Thats OK in a big shed but in a smaller shed a flat out swampy can be noisy.

    If you are going to replace the motor a used 3P motor and a cheap VFD is one possibility. One of my squirrel cage...
  3. I should buy one and slap it into my HP meter to...

    I should buy one and slap it into my HP meter to see what it can do. Another one for the WIGRTI list.
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    The cost of a business like a metal merchant...

    The cost of a business like a metal merchant includes a lot more than employing workers.
    The cost of land, buildings, insurance, rates, energy, transport, OHS, etc will easily surpass that of wages...
  5. All the medical people (GP, respiratory...

    All the medical people (GP, respiratory physician, endocrinologist, renal specialist) I go to communicate (quickly) by email.
    They answer medical questions and will renew prescriptions by email...
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    Depends what you mean by "steel"? Stuff for...

    Depends what you mean by "steel"?

    Stuff for turning and milling I reckon its hard to beat places like Voestalpine offcuts even if they have a $50 minimum buy - I always end up with more than that...
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    I can see how they could be very useful in...

    I can see how they could be very useful in certain situations (like then one shown in the vid or needing to keep out of the way) but can also see some problems

    So I'm working on something and have...
  8. Thread: Ender 3 S1

    by BobL
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    178

    I was sort of in your shoes about 5 years ago...

    I was sort of in your shoes about 5 years ago when my son gave me a printer kit and completed about 99% of it before giving it back to him to finish as I didn't really have anything I wanted to...
  9. If they are imperial threads them expect to pay a...

    If they are imperial threads them expect to pay a more.
    Well at least last when I needed 16, 1/4" BSWs I had to settle for NCs and they cost a lot more than metric equivalents.
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    Yeah I get it. It also most likely works better...

    Yeah I get it. It also most likely works better than my damper which I already said has a few issues.
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    You can't edit or delete images. My understanding...

    You can't edit or delete images. My understanding is that when you sign up you're basically handing over the ownership of any uploaded photos.

    If you have a specific reason to want an image...
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    I looked at those but the US$200 plus US shipping...

    I looked at those but the US$200 plus US shipping was going to be more than twice what my BS cost :)

    I ended up with one of these dampers for ~$50 including shipping ...
  13. Good work. Suggest replacing the slotted head...

    Good work.
    Suggest replacing the slotted head screws with socked heads as these can be tightened firmer and easier.
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    About two years ago I was helping a mate build a...

    About two years ago I was helping a mate build a wood work bench using timber I had milled with a chain saw a few years before. The top of the bench was to be made from a single timber slab and as it...
  15. Most likely - I was just debunking the claims...

    Most likely - I was just debunking the claims made on more than one you tube vids about how the cheap chinese dimmer and rectifier was all that was needed.


    I agree a proper PWM should make...
  16. In 2018 I posted some HP output tests on a DC...

    In 2018 I posted some HP output tests on a DC treadmill motor powered by a simple triac and rectifier.
    For anyone interested to see how they perform (ie not very well) have a look here....
  17. Replies
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    636

    No, I still use mine for most cuts. Mine is not...

    No, I still use mine for most cuts.
    Mine is not fixed at the base end so can be flipped up out of the way if I need - it also means I can lift the arm up right out of the way.
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    My list is highly fluid. I have a list of ideas...

    My list is highly fluid. I have a list of ideas for projects in my head but whether it proceeds depends on what what I already have amongst my stash of bits and their repurposing to suit projects and...
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    SWMBO has been employing this approach to help...

    SWMBO has been employing this approach to help her declutter, and boy do we have some decluttering to do. So far we are at least not accumulating more than we chuck out, but I would like to see more...
  20. Thread: ABS sheeet

    by BobL
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    436

    Along with "bomb" like looking gas forge (which I...

    Along with "bomb" like looking gas forge (which I have sold), SWMBO reckons the department of homeland security would take a keen interest in me walking around in public with such a box.
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    Our 2 grandies are delightful. The lad is 5,...

    Our 2 grandies are delightful. The lad is 5, autistic, lacks social skills ( not that 5 year old boys have much anyway) curious, mind like a steel trap, and thinks way outside any squares. He always...
  22. Thread: ABS sheeet

    by BobL
    Replies
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    436

    Something like this? 395588 No - not...

    Something like this?

    395588

    No - not rifles, but chainsaw bars
    When all 5 slots are occupied its bloody heavy.
    395589
  23. Thread: ABS sheeet

    by BobL
    Replies
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    436

    What is it you are trying to achieve? Some pics...

    What is it you are trying to achieve?
    Some pics might be useful.
  24. Replies
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    I've watched SWMBO go through 20 years with an...

    I've watched SWMBO go through 20 years with an anxiety condition exacerbated by a lifetime of dealing with an overbearing mother a raft of medication conditions, and bullying at work. She's ended up...
  25. Thread: Fred Dibnah

    by BobL
    Replies
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    273

    Botty winking stuff!

    Botty winking stuff!
  26. Replies
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    Good ideas IT , the only one I will disagree with...

    Good ideas IT , the only one I will disagree with is supplements, not necessary if you eat a balanced low processed food diet.
    Amongst the healthiest long lived people in the world with a high life...
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    I've got a few health conditions (diabeties, only...

    I've got a few health conditions (diabeties, only one [not working properly] kidney, sarcoidosis [fortunately seems to be on the decline], plus i'm about 30kg overweight!) so the mild arthritis in my...
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    Wow, lucky indeed! - it can all happen so easily....

    Wow, lucky indeed! - it can all happen so easily.

    Hope you check out OK.
  29. Thread: Hardness files

    by BobL
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    252

    I have used a cheap set and found them a bit...

    I have used a cheap set and found them a bit frustrating so I bought an expensive Japanese set (Tsubosan) but they are not that much better.
    The Tsubosans cost $70 but I see they are over $100 these...
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    Just a heads up that the additives in especially...

    Just a heads up that the additives in especially modern engine oils are a known "skin defatting agent" and skin irritants so anyone using it as a cleaner its should use it as quickly as possible....
  31. Well, I'd say your mates are well and truly out...

    Well, I'd say your mates are well and truly out of touch as are many australian OHS dust standards.

    Anyway it's not a belief, I've been following the international dust research literature and...
  32. Recommendations depend on - the size of your...

    Recommendations depend on
    - the size of your shed
    - what it is you do
    - your budget
    - how often you are in there.

    For many DIYers, small shed, few large/lengthy dust making activities,...
  33. If you are working within a smallish shed (ie...

    If you are working within a smallish shed (ie <100 m^2) for the cost of one of those expensive air flow shields you can buy a hell of a lot of ventilation. Then you don't need to use a fully enclosed...
  34. Just a comment on air flow. I would not purchase...

    Just a comment on air flow. I would not purchase any air flow helmet unless a flow specification is provided - not that this means much because chances are they are measured to an australian...
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    They were turned from pieces I picked up from,...

    They were turned from pieces I picked up from, would you believe, the scrap bin :oo: at work about 20 years ago. They had many metres of rod of that size left over from a large project and were...
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    Back in 2008 I made brass jaws for my WW lathe...

    Back in 2008 I made brass jaws for my WW lathe chucks.

    395454

    The are leather lined to hold wooden chisel handles for polishing
    395455
  37. Thread: Choosing a VFD

    by BobL
    Replies
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    2,059

    While in general I would agree, apart from...

    While in general I would agree, apart from general Radio reception, the interference i've observed is more related to the sensitivity of the sensors being used and the way they are interconnected....
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    Mine has an in line switch so if I leave that...

    Mine has an in line switch so if I leave that switch on the pump goes on and off when the main motor does. However, it does take about 3-4 seconds for the lube on my setup to find its way from the...
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    The MSDS for glycerine is interesting as it says,...

    The MSDS for glycerine is interesting as it says, "may irritate skin and eyes and should not be taken internally" and recommend using A RESPIRATOR AND GLOVES!
    Yet, it is used in many edible products...
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    I bought a 1L bottle of pharma gradeglycerine...

    I bought a 1L bottle of pharma gradeglycerine back in early 2020 when I was making hand sanitzer and still have most of it - so I might give it a go.
    I think I paid about $30 for it but it can be...
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    I often end up washing my hands sometimes 5-6...

    I often end up washing my hands sometimes 5-6 times a day and find I can't use strong soaps as the wrecks my "thin" skin so I use Glitz Hand wash from Bunnings, $30 for 5L.
    It contains orange oil...
  42. Thread: Choosing a VFD

    by BobL
    Replies
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    2,059

    A few years ago following a major clean out at...

    A few years ago following a major clean out at the mens shed I scored a small roll of 1.5mm shielded 6 core cable and this is what I used on the coffee machine VFD. Hate to think of what it would...
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    It doesnt naturally emit any fumes or dust so...

    It doesnt naturally emit any fumes or dust so dustless mechanical working is OK.
    Its safe to handle with bare hands - it's what gets inside you that matters. That included small chips that might get...
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    Identifying BeCu is not something to be trusted...

    Identifying BeCu is not something to be trusted to by a scrappy with a portable X-ray fluorescence spectrometer unit. Be is a low Atomic Number Element (4th after H, He and Li) and this means its is...
  45. Thread: Choosing a VFD

    by BobL
    Replies
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    2,059

    A crude way I assessed the RF output from the 9...

    A crude way I assessed the RF output from the 9 VFDs (0.4 - 4kW) I have in my shed as using AM and FM band radio. I did not set out to do this deliberately - I usually listen to AM radio and noticed...
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    A more accurate method is to use a refractometer...

    A more accurate method is to use a refractometer to measure the refractive index of the mixture and then multiply that by a fudge factor OR calibrate the refractometer to known concentrations.
    Then...
  47. Thread: Workshop lighting

    by BobL
    Replies
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    6,887

    Comparing the light output of old generation...

    Comparing the light output of old generation fluoros with new LEDs is not really a fair comparison.
    Old fluoros will have faded considerably - if you were to get new generation fluoros you would be...
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    From this...

    From this https://www.toolprocure.com.au/assets/Product%20Data/Houghton/Product_data_sheets/Hocut_797BU_PDS_Australia_v2.pdf


    HOW TO USE RECOMMENDED USE CONCENTRATION
    Machining 1:10 to 1:20...
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    The 3 year old Chinese ones I got from ebay are...

    The 3 year old Chinese ones I got from ebay are working well enough for me
    ...
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    All of the images pre about 2012 will be long...

    All of the images pre about 2012 will be long gone anyway.

    I seem to remember he made a ply frame box with a pyramid shape up into the middle to act was a 4 way diverter. I don't recall what the...
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