Adoom

New garage toy/tool

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So I bought a metal cutting vertical bandsaw. It's single phase.

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I picked it up on the weekend. It belonged to a fabrication shop called Metalmorphic. They bought it new ~35 years ago(the plate on the motor says 1982) and stopped using it about 5 years ago because laser cutting exists.

All I've had time to do is take the blade guides to bits and clean them. Looking at the photos I realised I put part of the top support in backwards, so the locking screws face the wrong way.

 

I knew the blade welder wasn't working when I bought it, he said it had been "fixed" some years ago, but it's not working.

Here is the photo from trademe, it's much cleaner now. Looking on google, it seems like many saw brands use "identical' blade welders.

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I'll probably never use the blade welder and just buy ready made blades. But I thought I'd take it apart and see if I could find what was wrong with it. "How complicated could it possibly be?".

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Someone has been in here before me... That switch with all the cut wires is to turn on the little grinder. I assume the red cable originally came here rather than the terminal block? And then yellow wires from here to the terminal block? The grinder motor also has a loose red wire with a spade connector on it that has nowhere to connect to.

I assume the two wires coming from the saw are phase and neutral, and it earths through the casing?

Does anyone else have a blade welder like this and can take some photos for me?

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I gave the welder assembly a clean with compressed air. It had loads of metal 'dust' all over it. Which I assume was conductive! I should probably try make some kind of plastic dust cover for it.

I traced the wires... Round thing at the top is the grinder motor. 2,3,6 are joined together, which looks original.

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As far as I can tell, the welder and annealer should have been working, it was only the grinder motor that was no longer connected.

AFAIK, if I add in the wires I've drawn in thin lines, the motor should work.

So next thing to do is pull out the multimeter and check the switches all work and there is continuity in the transformer coils.

 

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Cool saw. Would be so handy.  What's for me curious is how big is the top drum/wheel? From what I can tell it must have two wheels on top and the blade must be far more flexible then a normal wood bandsaw... 

 

 

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4 hours ago, yoeddynz said:

Cool saw. Would be so handy.  What's for me curious is how big is the top drum/wheel? From what I can tell it must have two wheels on top and the blade must be far more flexible then a normal wood bandsaw... 

 

 

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You got it. The top wheels are a little smaller that you have drawn. The bottom wheel is about right.

I think the blade is 0.6mm

 

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