Speechless

Well we all know THAT is an exaggeration! However.

Finally had a chance (and the justification) to fit my new 1″ 1.3TPI, TCT resaw blade on the bandsaw today.

Before I get into what I think of the blade, (and as far as bandsaw blades go, it wasn’t particularly cheap), I’ll mention what prompted me to splurge on a replacement blade.

I was trying to resaw some kiln dried hardwood (Tassie Oak), that was around 200mm wide.  I was using a 1″ 1.3TPI blade that came prepackaged from a woodwork supplier.  Not sure if it was a carbon blade, but I strongly suspect so.  I was struggling.  The blade was complaining bitterly, the amount of force needed to push the timber through the blade was getting stupid  (the range of force needed is “butter”, “easy”, “moderate”, “hard”, “difficult”, “impossible”, “dangerous”, “stupid”), and I was blowing the circuit breaker on the bandsaw circuit continuously (it isn’t rated particularly high, so trips way to easily).  To the point that I was oping for the 15A tablesaw to do the resawing, taking a couple of passes to cleave the timber.

So onto today.  More resawing required.  Fitted the TCT blade with a bit of trepidation – what if it isn’t much better?

The blade fitted, tensioned, and finally the timber ready to cut.  I touched the end to the blade (to make a mark to ensure I was centred).  Well I meant to touch the end.  Being so used to the previous blade, I put a little bit of pressure in, and immediately sliced into the timber over 5mm.  Whoa.

Checked I was centred, then fed the timber in, through, and out the other side (1800mm) cleaved in twain without beginning to try.  I need a new category for ease – “Soft butter”  And this was hardwood.  Be very interesting the day I need to resaw some serious Aussie hardwood.  Do not expect this blade to have any trouble – wonder how easy it will be!

It goes to show, the right blade, a quality blade makes it so much easier, safer, enjoyable.  So the blade was $180 or so. After experiencing what it could do, it is worth every cent.  Just a pity I can’t get blades thinner than 1″ with a TCT.  Not that the bimetal 1/2″ blade has been any slouch either.

As mentioned earlier, purchased from Henry Bros Saws if you want your bandsaw to become everything it can be!  Sounds like a sales pitch (perhaps it should be!) but no.

Real Smooth Shave

Gave the first new bandsaw blade a quick workout today – the 1/2″ 3TPI bimetal blade.

It has a regular tooth set, and slices beautifully.  When resawing, it vastly out-performed my current 1″ carbon resaw blade – it is obviously significantly sharper – not surprising given how easily carbon blades dull off.

So not only it is superbly sharp, because it is bimetal it will hold that edge for longer.  I guess I have found my new “standard” blade – the one that will stay on the bandsaw by default, so whenever I want to do a quick cut without going to the trouble of changing blades, this is the one that is a jack of all trades. So yes, very happy with this first blade, and looking forward to testing the others.

The general rule is to have as few teeth in the cut as possible.  Too many, and the gullets fill and clog and the blade cannot cut well.  Too few teeth, and the cut is rougher than is necessary.  Having a range of blades, sizes, tooth configurations, tooth numbers will mean you will have the best blade for the job.

Straight-faced tooth with deep gullet to remove shavings.

Deep gullet and 10o undercut face which digs in more, and tends to curl the shavings.  Good for harder woods.  I would imagine though, that it is likely to dull off quicker, given there is less material backing the tooth edge up.

Similar to Hook Tooth, but has the teeth at 90o . Chips rather than shaves – good for materials that would otherwise clog up the blade.  Effectively increases the gullet (which clears the formed chips out of the cut), without having to increase the overall tooth size.

Has a combination of teeth closer together for a finer finish, with some teeth having large gullets for chip clearance.

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