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Type: Posts; User: Karl Robbers

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  1. Replies
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    If it were me, I would contact UNIMIG and pose...

    If it were me, I would contact UNIMIG and pose your questions. Based purely on the relevant spec sheets, the compressor is not up to the job, however I have found UNIMIG to be quite willing to...
  2. The choice of material and the thickness of it is...

    The choice of material and the thickness of it is always an interesting question. Sometimes it's advantageous to pick a heavier material that does not require additional framing, although top hat...
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    That would certainly solve that issue. It may...

    That would certainly solve that issue.
    It may not be the case with all mag drills, but I know that the Holemaker mag drills need to see a certain amount of magnetic feedback before the motor will...
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    I'll be the big meanie on this one. That...

    I'll be the big meanie on this one. That contraption is dangerous. Anyone who has used a mag drill will tell you that it can take comparatively little to make the magnet lose grip to varying...
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    All very good points. If I can put my...

    All very good points. If I can put my Firefighters hat on for a moment, I can definitely say that Acetylene is one of the substances that really gets the attention of emergency services at an...
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    Regarding cylinder sizing, IMHO, the smallest...

    Regarding cylinder sizing, IMHO, the smallest practical size cylinders if oxy cutting is going to be even a semi regular part of your requirements, is the E size. While D cylinders are great for...
  7. A good ending indeed, for you at least. ...

    A good ending indeed, for you at least. Unfortunately, there is still a sparky, or someone posing as one, on the loose and performing sub standard work.
    Having said that, you also can't be expected...
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    G'day, Boilermaker of 30 something years penance...

    G'day, Boilermaker of 30 something years penance here.
    IMHO, Oxy Acetylene is still a valid process, although it has been surpassed in most areas, there are still some things it can do, that are not...
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    I'm guessing that the 50X50 pre galvanised is...

    I'm guessing that the 50X50 pre galvanised is actually Duragal, which is in no way comparable to actual galvanising.
  10. My hatred of choice is testers and taggers. For a...

    My hatred of choice is testers and taggers. For a start, testing and tagging is really only valid at the exact moment that it is performed, as damage at any point negates it's validity. Secondly, I...
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    Yep, and I challenge anyone to buy a piece of bar...

    Yep, and I challenge anyone to buy a piece of bar as cheaply as a Bare-Co pin.
    Another good source of steel bar is worn out CV driveshafts. No idea what grade they are, but they are definitely...
  12. This sort of thing makes my blood boil. ...

    This sort of thing makes my blood boil.
    Australian regulations preclude anyone but sparkies doing pretty much anything, yet some sparkies are so blase about the rules/correct procedure.
    I've known...
  13. Droog is right in what he says Gazza. I realise...

    Droog is right in what he says Gazza. I realise that diameter will also give you a ratio of sorts, however the only time it is correct from an engineering perspective to use diameter, is when...
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    I have no particular bias toward Korloy, but it...

    I have no particular bias toward Korloy, but it was the lead that I received, so I spent a fair bit of time browsing their catalogue, and I would imagine that many manufacturers would follow the same...
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    I know that Esab are one of the big names, but...

    I know that Esab are one of the big names, but I've never used any of their machines which impressed me. They weld, but that's about all I could say for them.
    If the OP has gotten 40 odd years out...
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    Here is what I have discovered so far. It...

    Here is what I have discovered so far.
    It appears that in the Korloy brand, we are seeking tools in the "Alphamill" series. A google search led me to Ebay, where there are currently 2 listed, with...
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    Not as yet, but Max did say in his comment "not...

    Not as yet, but Max did say in his comment "not cheap."
    I will do some research and report back.
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    As luck would have it, I happened upon a Youtube...

    As luck would have it, I happened upon a Youtube Video showing just what these indexed carbide endmills from a quality manufacturer are capable of. https://youtu.be/FG1j47anGlg?si=eVJwkW1xuh8At1xU ...
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    Not necessarily total doomsday provided we have...

    Not necessarily total doomsday provided we have the time to make such changes, however it will be one heck of a painful time for Australians should it occur.
    I guess India would be one of those in...
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    Yep, people have forgotten that Australia was...

    Yep, people have forgotten that Australia was once left to it's own devices during a global conflict. Did we fall? No, we produced our own aircraft, our own tank, our own sub machine gun (which...
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    Yep, for what they are, the Chinese welders and...

    Yep, for what they are, the Chinese welders and Plasma's perform really well, yes, you can consider them commercially unviable to repair, but taking your $260 plasma as an example, that would buy...
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    What type of bayonet is it? I'd be surprised if...

    What type of bayonet is it? I'd be surprised if the grips are riveted as back then, things were made the "right" way using threads, nuts and bolts. I know that the pattern 1907 bayonets to suit the...
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    I spent a bit of time this morning checking out...

    I spent a bit of time this morning checking out the Xuhan carbide end mills on Aliexpress, and I'm going to give them a go. I know looks can be deceiving, but looking at the mills and their...
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    I've got the shaper avenue covered - 25" Smith...

    I've got the shaper avenue covered - 25" Smith and Mills, which weighs a shade over 3 Tons according to the specs, which I'd say is accurate based upon the way my crane handles it.
    I do have a...
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    It's certainly given me some food for thought. I...

    It's certainly given me some food for thought.
    I do have a 20mm Sandvik indexable end mill of somewhat ancient vintage. It does leave a nice finish on steel, but due to the primitive insert...
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    Hmmm, not exactly impressive perfofmance from...

    Hmmm, not exactly impressive perfofmance from them with thise figures.. I'd be running Them in a turret mill with NT40 spindle, so that may help. Is chatter your main limiting factor?
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    Indexable carbide end mills

    G'day, has anyone had much to do with the indexable end mills using APMT1135 inserts that multiple Ebay sellers are selling?
    405161
    I'm toying with the idea of giving them a go, probably in the 16...
  28. Replies
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    If it were me, I think I'd put more weld on than...

    If it were me, I think I'd put more weld on than what you are proposing, based on the potential consequences of weld failure. That may (probably will) cause some distortion, but it's only a 27mm...
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    Just for the heck of it, I'll throw a hand...

    Just for the heck of it, I'll throw a hand grenade in the room.
    How about a set of dial calipers?
    I fully realise that they won't offer micrometer accuracy, but they are better than verniers for...
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    I've been a boilermaker for over 30 years and...

    I've been a boilermaker for over 30 years and I've yet to walk into any fabrication shop with a fixture table to be honest.
    I can think of times when one would have been useful, but not to the...
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    I have used Toledo digital verniers - probably...

    I have used Toledo digital verniers - probably close to 30 years old, Moore and Wright, which would be getting on for 10 years now, and Limit, which would be 4 to 5 years old, and I can confidently...
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    Nothing quite conveys a cease and desist message...

    Nothing quite conveys a cease and desist message like a shotgun I suppose.
    In all seriousness though, many residents forget that they may need some understanding or lenience one day themselves.
    I...
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    You will need to be very carefulbendingthe...

    You will need to be very carefulbendingthe channels as the galvanizing can quite easily lose adhesion or crack off the steel. I am guessing that both the steel channel and the galvanising are the...
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    The reduction in accuracy could be a valid point,...

    The reduction in accuracy could be a valid point, but I guess that will greatly depend on the quality of the reducer used. My only experience with reduction sleeves has been with one that I use to...
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    Have you considered using an ISO50 to ISO40...

    Have you considered using an ISO50 to ISO40 reducing adaptor?
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    That was a really worthwhile video to post,...

    That was a really worthwhile video to post, particularly toward the end where BigClive explains that RCD's are not guaranteed to save you in all circumstances.
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    I've heard that the flatness of granite bench...

    I've heard that the flatness of granite bench tops leaves a lot to be desired as far as surface plates go. How have you found yours BaronJ?
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    He certainly did design the Owen Gun in 1938 at...

    He certainly did design the Owen Gun in 1938 at the tender age of 23.
    What I'd like to see, is for people that blatantly do the wrong thing, such as using a firearm in the commission of a crime or...
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    I wonder if the name Evelyn Ernest Owen means...

    I wonder if the name Evelyn Ernest Owen means anything to the numptys that believe that banning firearm blueprints will stop unofficial firearm manufacture?
    Evelyn seemed to do alright without...
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    Another thought comes to mind. Given the size...

    Another thought comes to mind.
    Given the size tool you are running, I'm guessing that yours is a quite small lathe and thus used in a hobby setting rather than trying to remove masses of metal in...
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    I'd be betting on CCMT060204 inserts. They...

    I'd be betting on CCMT060204 inserts.
    They should measure 6.5mm along the angled edge, 6.35mm across the insert (the 06), and 2.38mm thick (the 02) with a 2.8mm chamfered hole for fastening, with a...
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    COM_VC is dead on the money with everything he...

    COM_VC is dead on the money with everything he says. That saw is a full on industrial production model and worth a pretty penny.
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    If you want to see some good footage of a Waldown...

    If you want to see some good footage of a Waldown TPG in action, then check out Max Grant's Swan Valley Machine Shop channel on youtube. He has a video series where he makes a heap of R8 tooling,...
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    I love this post, it makes me so glad that I live...

    I love this post, it makes me so glad that I live in a rural area.
    To be honest, I think you're royally screwed as far as doing pretty much anything. I think back to an uncle of mine that lived in...
  45. I love Cubitron and use them myself at home, but...

    I love Cubitron and use them myself at home, but the boss won't buy them due to their cost. I currently work in avery interesting workshop where most of the workers, well, frankly, everyone but me,...
  46. I'll be interested to see how you find their...

    I'll be interested to see how you find their product. I've used a few of their products and results have varied widely. Their Deerfos resin fiber sanding discs work well for their price, but I...
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    There's a fairly good chance that those black...

    There's a fairly good chance that those black areas are as a result of contamination, quite likely from grinding or flap wheeling, but possibly as a result of dragging contamination out that was...
  48. 1M of 100 PFC is getting pretty close to what...

    1M of 100 PFC is getting pretty close to what most fabrication workshops would be sending to the scrap bin, and I reckon if you approached one and asked nicely, you'd probably walk away with that and...
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    Put the MIG away, tip the boat on it's side, or...

    Put the MIG away, tip the boat on it's side, or even upside down if need be, clean the weld area properly, and then TIG it up.
    MIG can never be really successful on these jobs due to the fact that...
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    Gazza, your boat and your life. Nowhere in the...

    Gazza, your boat and your life.
    Nowhere in the history of welding aluminium, would anybody tackle a repair the way you have. You ask for advice on this forum and other Facebook groups, and receive...
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