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  1. Even the very best commercial metal...

    Even the very best commercial metal blackening/bluing will not resist metal on metal contact and it will eventually rub away. About the best you can do is keep a thin layer of oil on it.

    Heres my...
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    If it was triangular with an 8cm base and a 6cm...

    If it was triangular with an 8cm base and a 6cm heigh then the volume would be 1/2base x height or 4 x 6 x 26 = 624 cc x 7.6 g/cc = 4.7 kg
    If it was fully rectangular is would be 6 x 8 x 26 = 1248...
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    7kg of bronze is about 1000 cubic cm If it was a...

    7kg of bronze is about 1000 cubic cm
    If it was a cube it would be 10 x 10 x 10 cm or 4 x 4 x 4 inches which is not that big

    If it was 4 x 8 inches then it would be 2" thick.
    Sounds like a job...
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    Looks pretty much like a standard 6 x4 BS. Two...

    Looks pretty much like a standard 6 x4 BS.

    Two issues with coolant pumps on bandsaws;

    No matter how well you filter the return fluid, some fine metallic sludge seems to get back. Then if the...
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    Back in the 60's Dad used to change his own car...

    Back in the 60's Dad used to change his own car engine oil and would send me with the used oil around the fence line. When mum complained about the smell Dad sent me up and down the street to do the...
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    To start with I doubt this is a task for a small...

    To start with I doubt this is a task for a small desktop CNC.

    2.25" is a stock size for Al bar so you just need something to cut it to length.
    You would need a very large (ie 10's of thousands of...
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    I'm the reverse. Although I use a coolant lube...

    I'm the reverse. Although I use a coolant lube system, carbon blades were only lasting me between 3 and 6 months. I went through several dozen carbon blades before I bought my first bimetal 10-14...
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    I use 6-10 and 10 -14. The 10-14 (average is 12...

    I use 6-10 and 10 -14.
    The 10-14 (average is 12 TPI) means the tooth spacing is nominally 2mm. Theoretically this means to meet the minimum of 3 teeth in the material that no less than 6mm thick...
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    About 40 years ago I was involved with renovating...

    About 40 years ago I was involved with renovating a tiny lab (9 m^2) at uni in which super low trace metal analysis were going to be performed. Because of this we stipulated absolute minimum use of...
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    No of course not, but I wasn't thinking of you,...

    No of course not, but I wasn't thinking of you, but a newbie who stumbles across this and reads it the wrong way. If "inside" had been explicitly mentioned in your reply I would not have commented.
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    You maybe want to earth the container as well.

    You maybe want to earth the container as well.
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    They look like the back of a 3 pin plug, ideally...

    They look like the back of a 3 pin plug, ideally you need some sort of plastic box over them


    Sure - but you never mentioned inside, and the OP was taking about a connection on the outside.
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    Not really - It would be very risky to use those...

    Not really - It would be very risky to use those on the outside of a container for the purposes of connection of an extension cord from an external power supply because because any extension cord...
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    I wouldn't bother to weld up anything. The...

    I wouldn't bother to weld up anything.

    The simplest/quickest solution would be to fit a rated weather proof power plug (not socket) to the outside of the container.
    The sort of thing they use on...
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    A few weeks ago I received from a Chinese freight...

    A few weeks ago I received from a Chinese freight forwarding company in Sydney an unsolicited USB stick in the shape of a yellow rubber aeroplane.

    Thinking it might be a way to hack computers I...
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    On my Rong Fu I use 1645 mm blades.

    On my Rong Fu I use 1645 mm blades.
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    That looks like a 380V only connected motor - it...

    That looks like a 380V only connected motor - it will need internal conversion to make it run on 240 3P otherwise it will only deliver less than half Max power.
    391487
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    A 5.5HP motor may represent a bit of a problem...

    A 5.5HP motor may represent a bit of a problem because 240V SP to 415V 3P VFD don't usually come in that size typically the biggest they get is 5kW.

    Ordinarily a 5HP VFD would cope with that but...
  19. Another way to clean up just used nozzles is to...

    Another way to clean up just used nozzles is to just blow them clear with compressed air.
  20. I have a trigger/spray bottle on hand with turps...

    I have a trigger/spray bottle on hand with turps in it for all kinds of tasks and what I do is turn the nozzle to "jet" and hold the spray can nozzle inlet hard up against the spray bottle and pump...
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    I think that's what the trigger does on those...

    I think that's what the trigger does on those blow torches.
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    I use trigger bottles with a variety of liquids...

    I use trigger bottles with a variety of liquids including; Vinegar, Tannic acid, , Rocol water soluble lube/coolant, kero, meths, Simple Green (degreaser) and turps.
    Most of the trigger bottles are...
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    Lots of vids on youtube showing how to refill an...

    Lots of vids on youtube showing how to refill an empty spray can with fluids using a tubeless tyre valve, or make it easier to refill by permanently adding a tubules tyre valve.
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    Not sure what size belt you are intending to run...

    Not sure what size belt you are intending to run but my experience is that 3/4Hp is going to be too light for a 50 mm wide belt.
    My small Linisher has a 50mm wide belt and a 1HP motor and it's...
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    Interesting to hear MGs comment about cutting...

    Interesting to hear MGs comment about cutting stainless.

    I just happened to have made a heap of cuts in 25, 40 and 50 mm siam SS using my old 6x4
    The first cut was through a piece of 50 using a...
  26. Thread: Wheel chair lift

    by BobL
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    2,668

    I'll try uploading it in a different way (using...

    I'll try uploading it in a different way (using manage attachments instead of the insert image icon)
    391332
  27. Thread: Wheel chair lift

    by BobL
    Replies
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    2,668

    One way around this problem (and you might want...

    One way around this problem (and you might want to do this anyway) is to drill holes through and weld a couple of nuts into a corner of the tow bar hole. Bolts through the holes wills lock the tow...
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    I don't know if they have worked or not. He's...

    I don't know if they have worked or not. He's currently besotted with an original (OTT $$ wise) telescopic sight he's bought for one of his rifles and is getting a mount made for it. He's has the...
  29. I wasn't referring to any safety factors such as...

    I wasn't referring to any safety factors such as alzheimers but the fact that Al cookware doesn't work at all on induction based cook tops as they only heat magnetic (Iron or nickel) based cookware.....
  30. We have an induction cooktop so (Tin plated) Cu...

    We have an induction cooktop so (Tin plated) Cu and Al cookware are of no use but SWMBO keeps several hanging up in the kitchen and I occasionally polish them up every now and the when I have the...
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    last two AE orders Fridge alarm ordered on Feb 3...

    last two AE orders
    Fridge alarm ordered on Feb 3 arrived Feb 26
    LED panel lamp ordered Feb 5, still not arrived - site says to open a dispute with them if not arrived by April 4.
  32. Thread: Sydney Floods !

    by BobL
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    And just to show you how bizarre things are...

    And just to show you how bizarre things are weatherwise, while east coast Oz is being deluged on the west coast we have had about a week of temperature highs of between 37 and 39șC - this is normal...
  33. Unless the OP knows something about MW then...

    Unless the OP knows something about MW then suggest use of a "mop" could be misleading.

    What they really need is a bench top grinder fitted with a polishing mop.

    However, unless they are just...
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    My SS tray came out of an industrial oven andwas...

    My SS tray came out of an industrial oven andwas the right width but about 150mm longer than planned - I wanted to keep it that long but I have so little room in the shed I decided to trim it down....
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    That's pretty good considering they have a...

    That's pretty good considering they have a tempered glass front panel, a 3 year warranty, and presumably an earth that works :-)

    The Ali express ones supposedly have a Polycarbonate front cover,...
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    According to my eye specialist, based on lighting...

    According to my eye specialist, based on lighting alone (ie assuming no other vision problems), a 60 year old needs twice as much light to achieve the same visual resolution as a 30 year old. I've...
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    That LED panel looks similar to the $14...

    That LED panel looks similar to the $14 (including shipping) 100W, 10,000 lumen panels I purchased recently from Ali express....
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    I can highly recommend a some sort of swarf...

    I can highly recommend a some sort of swarf catching arrangement/tray and if you are thinking of possibly adding lube/coolant at some future time make sure that tray can catch all the drips including...
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    I usually part anything bigger than about 10 mm...

    I usually part anything bigger than about 10 mm in diam using lube coolant. I'm no parting pro but I reckon it could be anything (even a bit of friction) that causes the tool to chatter can cause the...
  40. Looks like the sort of this I see at the mens...

    Looks like the sort of this I see at the mens shed when members use a glazed flap disc.
  41. 3P motors and VFDs are increasingly being used on...

    3P motors and VFDs are increasingly being used on dust extractors (DE). Most machinery out of China is designed for the north american market (60Hz) but DEs machines don't use pulleys so their...
  42. How do you know its busted? It's pretty easy...

    How do you know its busted?

    It's pretty easy to check if teh wirings are intact.
    1) Check the resistances of each of the windings and make sure they are all the same - a few ohms
    2) Check the...
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    I might do that but currently I'm hop my nephew...

    I might do that but currently I'm hop my nephew will just buy one. I don't really need more projects.
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    Thanks Al, I don't think I want to into the bump...

    Thanks Al, I don't think I want to into the bump up game.

    Nephew contacted me last night - it sounds like he has scratched the die after resizing about a dozen heads - plunger must have been going...
  45. Put a piece of hex bar in the chuck and use a...

    Put a piece of hex bar in the chuck and use a large impact driver - don't lock the gears.

    Sometimes a very short burst in the tightening direction followed by longer bursts in reverse will loosen...
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    Yep! Last year I monitored with interest my...

    Yep! Last year I monitored with interest my nephew have several goes at casting brass using BBQ briquettes in his small blacksmiths forge. He used spent brass bullet casings as a brass source and a...
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    Looks like many plugs on machines and power tools...

    Looks like many plugs on machines and power tools given to the mens shed.
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    Yeah he showed me pics of one of these on his...

    Yeah he showed me pics of one of these on his phone.


    Yep he told me about this - haven't seen any evidence of this so far from the half dozen we put through teh working die.
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    4 pole (1440 rpm) motors give a wider practical...

    4 pole (1440 rpm) motors give a wider practical speed range as most can run up to 125Hz (3500 rpm). When a 2 pole motor is used 125Hz is 7000 rpm - doubt whether most normal motors and bearings can...
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    Resizing bullet heads.

    My nephew came around today and we spent the afternoon making a die to resize some 0.312" copper covered lead heads.

    He's been rolling his own ammo for a few months and discovered that one of his...
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