[TheForge] Re: Bandsaw Blades

[Roger Olsen]

Ralph, Randy & Dave,

Thanks for the nice crash course on saw blades.  I do appreciate it.
I will be placing an order tomorrow AM.

Ralph Sproul wrote:

>         Roger a basic rule of saw blades is to keep 3 teeth in the material
> for the best cut.
>
> SO, if your cutting a lot of thin wall tubing for example the 12-14 teeth
> are a must.  When you use these fine tooth (12-14) blades in heavy stock
> like the 2 1/2" square or a piece of 1" x 8 flat bar........the saw filings
> tend to jamb in the teeth, stall the blade and pop it off it's track or snap
> the blade by locking it in with the saw filings acting just like little
> hammer wedges and binding it right up.
>         Another option is to use the varipitch for those middle of the road
> some thin, some heavy cuts.  Those would be like 6-8 or 8-10 or 8-12.
> these go one set of teeth at 6 per inch, the next inch is 8 per
> inch.......this allows the courser teeth to pick up the saw filings that the
> finer teeth are making and not jamb.
>         For small flatbar just about anything will cut well.  On saws that
> cut lots of heavy structural stock with as few teeth as 4 per inch.   Thre
> are also raker differences, but I've not seen the wonder of delving into
> those yet.
>         For a straight tooth blade for small flat bars I'd go with 10 or 12
> teeth to the inch.  For the heavier stock I'd go to 6 or 8 teeth to the
> inch.........the courser you make the number of teeth...........the more
> your apt to break a tooth and ruin the blade if you throw in a piece of
> thing wall tube, pipe, etc.
>         Stick with the bimetal, you've already found those will not break as
> quickly and stay sharp - so that is not worth changing.
>
>         I order the blades for my saw thru McMaster Carr and they have a
> pretty nice selection.  Some say they are a bit high priced.......but I
> enjoy the fact that when I order something from them by 4:30 in the
> afternoon.......the UPS man still rolls in the next day between 11:00 and
> 2:00 with my order (unless they don't have it in stock).  I know you won't
> get that type of service in Oregon from them, but maybe there is some wise
> business that will offer some good service to help you out in this respect.
>
> Ralph

______

> I use 12-14 varipitch or whatever you call it, I like the finer blades
> because I occasionaly saw a thin pc. of tubing or conduit, when I had
> coarser blades I'de ruin the blade just about every time I did this.
> I'm really sold on the .020" thickness, I have a little $200.00 bandsaw uses
> 1/2"x64 1/2" blades.  .025" thick blades broke real regular, the .020" ones
> run a long time, guess they are a little more flexable, these are bimetal
> blades.
> Randy Mundt
>




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