Who has made a frame saw?

**Bushmiller** · 25th October 2015, 06:23 PM

Originally Posted by pmcgee

I also wonder a little at the limitations imposed by our ideas of sharpening with an equilateral triangular file.

This is the crazy saw I ripped a 5" thick "log" with. You can see the crazy gullet size (let alone the crazy gullet pattern)

I feel like that might speed things along a bit also.

Cheers,
Paul

Paul

The file is indeed a limiting factor on tooth shape, but so is the steel and the gullet capacity. If the tooth becomes too tall it lacks the strength to withstand the sawing forces. The sawing capacity of the tooth is also limited by the ability of the gullet to remove sawdust. In a thick piece of timber like the one you demonstrated in your video each tooth has to hold sawdust for around six to seven inches depending on your preferred sawing angle.

There is also the issue of a person's own available horsepower. Mine is ever diminishing. Big teeth mean more work. Nothing comes for nothing.

Something that has just comes to mind is that frame saws are often designed to be a two man operation. Possibly in that case much of what I have said above regarding horsepower may not apply

.

Regards
Paul

**IanW** · 26th October 2015, 07:45 AM

Originally Posted by Bushmiller

... I have any number of old 26" saw plates hanging around (literally) that you could cut off 1 1/2" or 2" strips. You would be welcome to them for "research."

...

Thanks Paul, I have an old saw or two that would do, too, but they are a bit thicker than what I had in mind for the 600mm blade. If you happen to have an old taper-ground specimen that is beyond resurrection, though, I have an idea that I'd like to try with a piece of it (it's about #567 on the priority list, so no rush!

).

Cheers,

**Bushmiller** · 26th October 2015, 08:18 AM

Ian

Most of the saws have been consigned to the "scraper' pile because they had no taper, but as soon as I can get my digital vernier guage to work again I will double check. I think there will be something: Probably amongst those sharpened a few too many times as that is the other reason they are put to one side.

Regards
Paul

**IanW** · 26th October 2015, 08:46 AM

Originally Posted by Bushmiller

..... Probably amongst those sharpened a few too many times as that is the other reason they are put to one side.....

Something like that is exactly what I had in mind, as it's the top few inches of thinnest blade I want to use. I have tried tapering some plate with abrasive paper on a block. After an interminable period of sanding, and just before my right arm fell off, I measured my progress. There wasn't enough change to even register on my dial calipers!

So I promptly consigned any thoughts of manual tapering to the dustbin of dumb ideas...

Cheers,

Thread: Who has made a frame saw?

Thread Tools

Search Thread

Similar Threads

Made a granite topped family room table with Ironbark frame

Home made sash clamps made from cheap pine short cuts

I made a picture frame

Steel Frame V Timber Frame

Tags for this Thread

Posting Permissions