Thread: How do you cut in a new saw recess for the blade?

Paul, the handle wood is Aussie Jarrah.

with a more traditional saw plate fit.

18 inch. Handle wood; American Black Walnut.



16 inch. Handle wood; Tasmanian Tiger Myrtle.

Stewie

Youse just showin' off now!



Absolutely delightful. A "crazy" (like our "crazy" tea service) set of all sizes.

Regards
Paul

Very nice saws Stewie.
Well done

Cheers Matt


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Well I've finally dunnit. The reason for the lag time was because of a back injury and a few days in hospital followed by lots of nice med's which had me in a state of zonkness for a few weeks.
So I ended up ditching the original handle I made because of a few critical errors in its design. One of which was that I used the nut holes from the handle and not from the saw plate itself. So found myself misaligned so cut my losses and started again. Second time was a lot quicker, funny that.
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I used a piece of merbau 140x40 offcut. I don't like the look of the timber as no matter how fine I sanded it, the surface seems "grainy". I will be making another one sometime. I made the handle slightly "fatter" on the bottom to avoid where the saw plate had cut through on the original handle. I also shaped the handle to suit my pudgy hands so it is comfortable to hold. So it looks a bit odd but importantly for me, feels good to hold. As Paul suggested earlier I had a choice to make .


I now have 3 D8's in working order. One crosscut 8TPI and a and two rips 4&6 TPI. The thumb hole D8 I haven't touched. That's how I bought if from the garage sale.

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One problem though, I have a crossed thread on one of the nuts. I know I didn't do it as the nuts came off easily.
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I have tried to gently file the threads into shape and have got this far. What I would normally do is find a nut with the same thread and ease the thread into it to finish the repair. Does any one know what this thread is?

TT

Originally Posted by Twisted Tenon

.......I have tried to gently file the threads into shape and have got this far. What I would normally do is find a nut with the same thread and ease the thread into it to finish the repair. Does any one know what this thread is? .....

Well, TT, if it's the same as my Disston (yours looks to be about the same era), I doubt you'll find a suitable nut in your tin of odds & sods to suit. They are standard Whitworth threads, but 7/32" x 24tpi - NOT a size you find commonly on anything other than Stanley planes, unfortunately.......

Been meaning to pick up a tap & die set so I can remake the bolt & nut I made for my thumb-hole Disston - it was missing one when I got it, & the nearest thing I had for size was 5mm, so I used that. But 7/32" is approx 5.5mm and some clown down the track is sure to mix them up & try to force the M5 bolt into one of the 7/32 sleeve. It won't go easily, since the metric pitch is approx 32tpi, but some blokes seem to delight in forcing the wrong screw size into the wrong nut! I'd lie easier in my grave knowing the threads were all the same...

Cheers,

Originally Posted by IanW

Well, TT, if it's the same as my Disston (yours looks to be about the same era), I doubt you'll find a suitable nut in your tin of odds & sods to suit. They are standard Whitworth threads, but 7/32" x 24tpi - NOT a size you find commonly on anything other than Stanley planes, unfortunately.......

Been meaning to pick up a tap & die set so I can remake the bolt & nut I made for my thumb-hole Disston - it was missing one when I got it, & the nearest thing I had for size was 5mm, so I used that. But 7/32" is approx 5.5mm and some clown down the track is sure to mix them up & try to force the M5 bolt into one of the 7/32 sleeve. It won't go easily, since the metric pitch is approx 32tpi, but some blokes seem to delight in forcing the wrong screw size into the wrong nut! I'd lie easier in my grave knowing the threads were all the same...

Cheers,

Thanks Ian, Whitworth? I never would have thought that. Somewhere in my shed I have a small stash of Whitworth nuts and bolts from when I had a little Morry Minor. There's also a specialist nut and bolt shop locally that may be able to help out. I'll give them both a go tomorrow and let you know.

TT

Just checked the thread size on a Disston Saw Bolt assembly using a 12- 20 tap & die. Its a perfect fit. Suggest you remove the threaded rod on the front or rear tote of a Stanley Plane and give it a try.

Originally Posted by planemaker

Just checked the thread size on a Disston Saw Bolt assembly using a 12- 20 tap & die. Its a perfect fit. Suggest you remove the threaded rod on the front or rear tote of a Stanley Plane and give it a try.

Brilliant! I never would have thought of that. I'll check that out first thing tomorrow.
TT

It worked! Thing of beauty for me. Used an old No 5 base to clean it up.

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Also found an iron saw nut in my kit which helped finish it off
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TT

Just shows how easily I can talk myself into the wrong conclusion!

I measured the bolt at 7/32 correctly, but there is so little thread, & working in the half-dark I couldn't get an accurate reading with the thread gauge. It looked like it was > 20tpi, so I just jumped to the conclusion, without checking, that it would be Whitworth pitch, which is 24tpi in that diameter. Whitworth is the American 'standard' after all, but Stanley & Disston adopted their thread sizes before Mr, Whitworth prevailed, so their 'standard' ended up non-standard.

And Stewie is right on the money - I tried a Stanley stud in a saw nut and it fits like a glove (or is that Glover - he was the man what patented the sleeved nuts for saws) , so 12-20 (or 7/32", 20tpi if you prefer), is it for sure.....

Cheers,

Originally Posted by Twisted Tenon

......Also found an iron saw nut in my kit which helped finish it off.....

All's well, as the Bard said...

As I said, one of these days I'll get my act together & get a tap/die set so I can make replacement nuts & bolts with the correct thread. I've been searching for a proper 'set' of taps, i.e. with starter & bottoming taps, which you really need to make the nuts properly, but they are just so hideously expensive for something I'll use maybe once every 3 years to make a few nuts & bolts!

Cheers,

I always thought that Whitworth was a pommy thread. As I said earlier, I used to own a 53 Morris Minor and it was all Whitworth. Always learning

TT

Originally Posted by Twisted Tenon

I always thought that Whitworth was a pommy thread. As I said earlier, I used to own a 53 Morris Minor and it was all Whitworth. Always learning TT

'Tis; you are quite right. Sir Joseph Whitworth was the guilty party! The US uses NC (National Coarse) which is not quite the same, but close enough for all practical purposes, except for the 1/2" size, which has a different pitch in W'worth & NC. I tend to use "Whitworth" for both, which is probably not a good habit & does lead to confusion, at times....

Cheers,