Thread: Table Saws and Dado Blades.

Peter,

The Triton camp needs you mate. Please reconsider please.

Peter,

Here is a pic of the arbor on my 10HB. The distance from the flange to the end of the thread is 30mm. Enough for a dado set I'd reckon.

Thanks guys for your help, I am learning more reading here than anywhere else. It is truly a great and wonderful facility UBeaut provide us with.


Carbatec got back to me during the afternoon and advised that they have spoken with both Brisbane and Perth. I am very satisfied with their handling of my queries. This was good follow up service.


They advised that the saw comes with two table inserts, one normal and one for a dado blade. They also advised that a full dado set, the CMT set as sold by them, cannot be used and that's why they advise that it is not designed for it.


They also advised that both Perth and Brisbane confirmed that part of the CMT set can be safely used, being up to 3/4", but not the full set. This size is acceptable to me for if I need any wider than all I need to do is do multiple passes.


Thus the mystery is solved and I will be placing my order tomorrow with them. I know that there will be a delay of probably one to two months before delivery, but that is not a problem for me as the Triton setup is still working. So Wongo it won't be a quick change over and discard of the Triton. In any case I have always been very happy with my Triton workcentre.


So thanks again guys for your help.


BTW both times the parking available at Bayswater was sufficient, the cars parked on the grass belonged to staff leaving proper parking spaces available for customers. Much better than trying to park close in Richmond.


Peter.

Originally Posted by craigb

Peter,

Here is a pic of the arbor on my 10HB. The distance from the flange to the end of the thread is 30mm. Enough for a dado set I'd reckon.

How thick is the retainer nut and flange? Say 5mm each minimum (mine together are 25mm), subtract that from the 30mm available, then subtract another 5mm for exposed thread to allow for safety.

That gives you 15mm plus, say mm tooth overhang each side so, 17mm dado from a set that should provide 7/8" or about 23mm; and that's best-case. I suspect your retainer nut and flange are probably 20mm together, reducing your ultimate dado width to a mighty 7mm or just over two passes of a normal kerf blade.

You may want to leave the flange off to regain about 5-10mm. I wouldn't do that or recommend it either, but it's your choice.

On my Jet table saw, the arbor is 40 mm long, and the retaining nut and flange use 17 mm, leaving 23 mm for my dado set. If your arbor is only 30 mm long, you are only going to be able to have about 13 mm of dado set mounted safely; you could probably manage another 3 mm at a pinch, but I doubt if you could use 19 mm of dado set. I don't think you could safely leave the flange off.

Rocker

How thick is the retainer nut and flange?

I've never known any of these to be very smart.

Retainer nut = 7mm Flange = 6mm.

30 - 13 = 17mm. Need another 2mm for a 19mm dado cut.

Guess you'd have to leave the flange off or only thread the nut on 5mm. Neither of which sound terribly safe.

Perhaps we need to hear from Dean to see if the arbor on his saw is the same length as mine as he's run a dado set on his saw.

It's not an issue for me at present as I have no need for a dado set.

If I ned to cut a trench, I can use a router.

Well I just set up my SD208 set for 3/4"
The saw takes it, only just.. With flange on and nut threaded, the arbor pretty much comes through flush with the outside of the nut. There would be a good 4 full turns of the nut there. I guess whether you think this is safe or not is personal opinion? I have cut many 3/4" dados with it recently and no signs of a problem.

Maybe my arbor is a mm or two longer than 30mm
I need to get some proper calipers one day

Originally Posted by Dean

Well I just set up my SD208 set for 3/4"
The saw takes it, only just.. With flange on and nut threaded, the arbor pretty much comes through flush with the outside of the nut. There would be a good 4 full turns of the nut there. I guess whether you think this is safe or not is personal opinion? I have cut many 3/4" dados with it recently and no signs of a problem.

Maybe my arbor is a mm or two longer than 30mm
I need to get some proper calipers one day

Dean, I was using my SD208 yesterday, set at 16mm on an extended 5/8" (55mm long) arbor. My saw has some differences to yours but I am a little concerned from what you describe.

On my 30mm arbor there is a 45 degree bevel at the start to help you get the nut on. This takes up 5mm before the thread starts.

On my longer 5/8" arbor the bevel is about 2mm followed by thinner tapered thread for another 2mm. Assuming you also have a 5/8 arbor (you must if using the SD208 and not the SD218) then if, as you state, you have the end of the nut flush with the end of the arbor, and assuming your nut is only 7mm (like Craigb's - same saw) that gives you 3mm of properly engaged thread.

I went out and measured my 208 stacked to 3/4" and it was 18.5mm. Added to a 7mm nut and a 6mm flange, that would make your arbor 31mm long, marginally longer than Craigb's.

*If* your available thread is only 30mm, as craigb's is, then you only have 2mm of properly engaged thread.

Given that these machines spin at 4000rpm, I'd be uncomfortable with that, but maybe I am being an alarmist.

Slight clarification.

There is 30mm of thread on the arbor. The arbor itself is a mm or 2 longer than that.

Craig

DONT TAKE ANY CHANCES FOLKS. Some years ago a close family friend found out the hard way what happens when a saw comes off the shaft. There were over 900 people at his funeral.
Sticking fingers where they shouldn't be is bad enough, but when a high speed blade takes off it usually climbs out of the hole and straight back at you. NOT NICE.
PLEASE DONT RISK IT.

Thanks for the clarification Craig. I am going over the top probably, particularly since I cannot see your saws. But, when it comes to safety (and we are talking in mere millimeters of engaged thread) I think someone needs to raise the question so others at least think about it.

I'll drop it now,

cheers.

It is done. The order has been placed. I will become the proud owner of a new TS. It better be a rainy day when it is delivered for the money comes out stuff set aside for a rainy day.


Thank you all again for your help, both in this thread and by way of PMs . It has solved my doubts and I will be satified with cuttung dado's up to 3/4" as anything wider than that can be easily done with multiple passes.


As a fellow member of the honoured Thread Highjacking and Pancakers Group I would like to thank fellow members for the professional courtesy extended to me in letting this thread continue without highjacking. Must be a record these days.


Peter.

... and it got this far without someone telling you that the TSC-10HB is junk (despite owning one themselves), that you're paying too much, and that a better one for a cheaper price could be bought in the US.

Now that is a record