Band Saw TPI Question

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Forum topic by JohnnyRelentless posted 01-22-2015 01:01 PM 761 views 0 times favorited 4 replies Add to Favorites Watch
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1 post in 1639 days

01-22-2015 01:01 PM

I am trying to make my first band saw box, and I used a blade that came with the band saw at first, and it worked fine, but then I switched to the 1/8” 14 TPI blade that I bought online, and it doesn’t seem to cut at all. I though the thinner blade would make the turns easier. Does the blade need to be tighter? Is 14 TPI just too much?

The box I’m making is about 4” deep made of redwood and poplar.

The band saw is a Craftsman 1/3 hp 3.5 amp 10”

4 replies so far

View TheWoodenOyster's profile


1313 posts in 1930 days

#1 posted 01-22-2015 01:27 PM

You might be clogging up the teeth real quickly with that many TPI. The issue is that the gullets between the teeth fill up with chips before they have a chance to exit, so cutting is very slow and difficult. I don’t do bandsaw boxes, but if I did, I would suggest more of a 1/4” blade with somewhere like 6-8 TPI.

-- The Wood Is Your Oyster

View wncguy's profile


392 posts in 2307 days

#2 posted 01-22-2015 01:42 PM

Agree with TheWoodenOyster.
I use a 3/16” 4tpi from Iturra Design & also a Carter Stabilizer for my Rikon 10-325 bandsaw on most of my boxes.
There could be other issues; setup, quality of blade; but tpi makes a big difference cutting that depth.
I’d think that redwood & popular would be pretty easy to cut (not that dense/hard).
I have used a 1/8” high tpi on some 4 1/2” deep boxes where I wanted very tight curves, but I needed to go quite slow to allow sawdust to clear the gullets.

-- Any man can be a father, but it takes someone special to be a Dad

View SteveT's profile


29 posts in 1238 days

#3 posted 01-22-2015 02:17 PM

I’m a novice also and did my first bandsaw box recently. I was having troubles with a 1/4” 6 tpi blade. I bought a 3 tpi (maybe it is 4, I’m not home now to look) and it was MUCH better.

View gfadvm's profile


14940 posts in 2685 days

#4 posted 01-22-2015 02:34 PM

All good advice above. I use a 3/16 and a 1/8” blade but less TPI. The thicker/more burn prone your wood is, the less TPI you want. The high TPI 1/8” blades are excellent for ‘scrolling’ small parts like all the animals for the Noah’s Ark many have done.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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