Breaking Blades

[lgm1985]

Hi guys. I've been scrolling for about a month with a saw that only accepted pin end blades. Just bought a saw that will accept both. The problem i'm having is i keep snapping blades on my new saw and i never snapped a blade with the old one. I've tried adjusting the tension, tried different speeds that the saw runs at, tried letting the blade do the cutting and not forcing the wood and eventually the blade snaps. Any suggestions would be helpful as to what i'm doing wrong.
p.s i have a sealeysm1302 16in variable speed saw

 

[boysie39]

Welcome to the forum ,you will get some help from someone soon .If they can they will help you .

 

[martinka]

Either crap blades or the blade isn't tight enough. Whereabouts in Wakefield are you? If you are close enough to Normanton to call round, I can give you a couple of Flying Dutchman blades to try.

 

[lgm1985]

Either rubbish blades or the blade isn't tight enough. Whereabouts in Wakefield are you? If you are close enough to Normanton to call round, I can give you a couple of Flying Dutchman blades to try.

Hi martin. I've fot some flying dutchman blades on order just waiting for them to turn up so i've been using the blades that came with the saw. It was so frustrating breaking the blades with the new saw as i hadnt broken any with my old one which was a clarke css400b. I also turned the tension knob as far as i dare bit maybe it want tight enough

 

[Bryan Bennett]

A very warm welcome to this wonderful group,I did not have the information when I started this wonderful hobby of ours that you will receive here.I see that Martin has been in touch with you,you are in very helpful hands.

Bryan

 

[Chippygeoff]

The blades that normally come with a machine are rubbish and I would advise binning them. You have the best blades coming and I am sure you will find a big difference. One of the main causes of blades breaking is over tightening the clamps. With mine I put the blade in the clamp, leaving a bit of clearance at the end, do up the clamp until it touches the blade and then just a pinch more and you will be surprised at how well it holds. Always have good tension and a good speed.

If its any consolation most of us break blades when we get a new machine, its a matter of getting used to it.

 

[lgm1985]

The blades that normally come with a machine are rubbish and I would advise binning them. You have the best blades coming and I am sure you will find a big difference. One of the main causes of blades breaking is over tightening the clamps. With mine I put the blade in the clamp, leaving a bit of clearance at the end, do up the clamp until it touches the blade and then just a pinch more and you will be surprised at how well it holds. Always have good tension and a good speed.

If its any consolation most of us break blades when we get a new machine, its a matter of getting used to it.

Will definately try the clamps when my new blades come. It just felt like it they werent going to grip the blade after the tension was applied so i might have been over tightening them

 

[martinka]

The blades that normally come with a machine are rubbish and I would advise binning them. You have the best blades coming and I am sure you will find a big difference. One of the main causes of blades breaking is over tightening the clamps. With mine I put the blade in the clamp, leaving a bit of clearance at the end, do up the clamp until it touches the blade and then just a pinch more and you will be surprised at how well it holds. Always have good tension and a good speed.

If its any consolation most of us break blades when we get a new machine, its a matter of getting used to it.

Will definately try the clamps when my new blades come. It just felt like it they werent going to grip the blade after the tension was applied so i might have been over tightening them

I forgot about overtightening. I had BIG problems with overtightening the clamps when I got the Hegner, though, to be fair, I never had the problem with the Jet saw, which is same as the Sealey.

 

[lgm1985]

The blades that normally come with a machine are rubbish and I would advise binning them. You have the best blades coming and I am sure you will find a big difference. One of the main causes of blades breaking is over tightening the clamps. With mine I put the blade in the clamp, leaving a bit of clearance at the end, do up the clamp until it touches the blade and then just a pinch more and you will be surprised at how well it holds. Always have good tension and a good speed.

If its any consolation most of us break blades when we get a new machine, its a matter of getting used to it.

Will definately try the clamps when my new blades come. It just felt like it they werent going to grip the blade after the tension was applied so i might have been over tightening them

I forgot about overtightening. I had BIG problems with overtightening the clamps when I got the Hegner, though, to be fair, I never had the problem with the Jet saw, which is same as the Sealey.

Just gunna be a lot of trial and error til i get used to this saw. Hopefully the flyin dutchman will go someway to sortin theproblem out

 

[mac1012]

over tightening the clamps is one of the main causes of blade breakage if its different clamps on a different machine , how do you tighten / is it a hand knob or lever or allen key ? etc

if the blade is breaking near the entry point into the clamp then it is probably the main reason as I have pointed out to people on here as I learned myself when I started out had a couple break then realised I was over tightening after that I very rarely break a blade , over tightening the blade causes the metal to squash and fatigue

you would be surprised how little clamping force is needed its not really a tighten it more of a squeeze if you get what I mean , just take the slack up then just squeeze a bit further hegner recommend the distance of one or two hour number spaces on a clock after nipping the blade , cant remember which but its not a lot

so like if you nip up to 9 oclock squeeze to 11 oclock position

mark

 

[lgm1985]

over tightening the clamps is one of the main causes of blade breakage if its different clamps on a different machine , how do you tighten / is it a hand knob or lever or allen key ? etc

if the blade is breaking near the entry point into the clamp then it is probably the main reason as I have pointed out to people on here as I learned myself when I started out had a couple break then realised I was over tightening after that I very rarely break a blade , over tightening the blade causes the metal to squash and fatigue

you would be surprised how little clamping force is needed its not really a tighten it more of a squeeze if you get what I mean , just take the slack up then just squeeze a bit further hegner recommend the distance of one or two hour number spaces on a clock after nipping the blade , cant remember which but its not a lot

so like if you nip up to 9 oclock squeeze to 11 oclock position

mark

cheers mark. Very helpful stuff. Its an allen key thats used to tighten the blade holders and theyve mainly been breaking about an inch from the top or the bottom.

 

[martinka]

I use the FD-UR blades, as do most FD users, or so it seems. I can still manage to break #1 and #3 but have yet to break a #5 or #7.
I know this will vary from saw to saw and user to user, but in about 8 months of using the same saw, I found the best speed to use was around 1200, and once I got settled on it, I hardly ever changed the speed after that. A good mod for that saw is to get a 4mm indexable handle so you can do away with the allen key for the clamp. Anyway, good luck with it when the new blades arrive.

 

[lgm1985]

I use the FD-UR blades, as do most FD users, or so it seems. I can still manage to break #1 and #3 but have yet to break a #5 or #7.
I know this will vary from saw to saw and user to user, but in about 8 months of using the same saw, I found the best speed to use was around 1200, and once I got settled on it, I hardly ever changed the speed after that. A good mod for that saw is to get a 4mm indexable handle so you can do away with the allen key for the clamp. Anyway, good luck with it when the new blades arrive.

I'm getting the FD -UR #5 blades so fingers crossed i have more look with them.

 

[ChrisR]

Welcome to the forum, Igm.

Martin, Geoff and Mark, have given you sound advice, no need to add any more, I am sure when you get the (FD) blades, you will be up and flying. (Sorry that was a bit corny). :roll:

Take care.

Chris R.

 

[lgm1985]

Welcome to the forum, Igm.

Martin, Geoff and Mark, have given you sound advice, no need to add any more, I am sure when you get the (FD) blades, you will be up and flying. (Sorry that was a bit corny). :roll:

Take care.

Chris R.

Much appreciated giys. I'll let you know how i get on.

 

[mac1012]

mmmm if it is an inch away from the clamp seems unlikely a overtightening issue as if it was its normally near the entry to the clamp it may be poor blades as been suggested or maybe to much tension

mark