I have a metal-cutting bandsaw but the blade slips on the wheels. I have tightened the blade and made sure the wheels are grease-free but it still slips so that I have to lift it just as it starts to 'stick'. Then it frees up, get a bit of steam going and cuts a bit more..then stops again. The blade doesn't come off the wheels so the alignment is true. The belt seems tight enough (good high-pitched 'ping' when pinged). Its a low-end of the range item (Clarke, 'Metalworker' 4.5'' bandsaw)) because I don't need it to run all the time and the instruction manually is basically crap. Anyone got some advice??
2007-11-08 00:50:34 · 6 answers · asked by Persevere 4 in Science & Mathematics ➔ Engineering
I also have the same saw.
I can only suggest that the feed rate, which is effecttively how fast the saw saws through the material, is too fast.
This feed rate is crudely controlled by the tension on the big spring at the back. there is a handle to adjust this.
Also, if you are cutting through thin sectioned materials, you need to get a fine pitch blade (more teeth per inch - tpi).
I find that if I am cutting "non-uniform" sections, like thin walled box section or pipe, you can set the saw to cut at the beginning, but when it has started, and cut through the top part, it will the race through the mid-section, and perhaps stall the blade.
This is because the feed rate required for gutting the mid section of tube (where the bade is cutting the wall thickness "end-on") is too fast.
If I am cutting pipe or any hollow section, I never leave the saw unattended, as I know I will be needed to manually take some weight off the saw when it is cutting through the wall thickness end-on, otherwise the saw will drop too fast and possibly stall, but it will definetely shorten the life of the blade.
The tension has to be quite high in the blade, and you'll know when you're overdoing it as you'll start snapping blades (then you know to back off a bit).
2007-11-08 21:46:38 · answer #1 · answered by Valmiki 4 · 1⤊ 0⤋
Possible causes:
1.) Dull blade
2.) Blade with incorrect tooth pitch for material thickness (too fine or too coarse)
3.) Incorrect or damaged tooth set (Set is a slight bend applies to each tooth. This angles alternating teeth away from the band making the effective cut (saw kerf) wider.) The set effects saw kerf width to narrow a kerf and the blade will bind.
4.) improper weld on band where ends were jointed
Try replacing the blade.....
2007-11-08 01:25:34 · answer #2 · answered by MarkG 7 · 2⤊ 0⤋
All I can think of is the guide wheels are not letting the blade go perpendicular to the work.
Or maybe the blade is being pinched in the work.
2007-11-08 01:07:09 · answer #3 · answered by dewhatulike 5 · 0⤊ 0⤋
Sometimes new blades are painted.
That paint can cause slip.
Rub it off with some emery paper and try that.
2007-11-08 23:42:13 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Either the blade is blunt or the material you are cutting is to thick/hard.
2007-11-08 01:01:18 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Could be you are trying to feed the metal through too fast or the guage of metal is too much for the machine.
2007-11-08 01:02:36 · answer #6 · answered by firebobby 7 · 0⤊ 0⤋