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By OPJ
#483501
What is it about Mondays?!? :x

Admittedly, I was rushing, as I had to go out this morning (just got back) and I wanted to get the timber planed up before I left. Over the weekend, I was resawing some oak and I think that just about finished off the 1/2" x 3tpi blade I had been using (it was used and came with the saw, probably Axcalibur, like the others).

As soon as I started the saw this morning, I knew something was wrong as the blade was visibly jumping back and forth; knock, knocking against the thrust bearing. Usually, this tells me that the weld is about to go. I know I should have changed the blade but, "I only had one more cut to make and it was less than an inch thick".... :roll:

You can guess what's coming next...

Image

For very many reasons, I'm glad my name isn't Peter Crouch. Otherwise, that may have tried to take my head off!! :?

Bellow, you'll see that the weld remained in tact (ignoring the stray tooth in the middle) - this is the first time I've ever had a blade break on me and not at the weld.

Image

It gets worse though. Very much worse....

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:shock:

Yep, that's the tyre off the top wheel - it came flying out the top of the saw along with the blade!!

You may remember my previous post, where I indicated that the tyre had a few gouges missing from the front edge. Well, I've been happily tracking blades on the centre of 'crown' of the tyre since then and, as I did check at the time, it certainly wasn't loose in any way. But, it's an incredibly clean break; almost like the adhesive between the tyre and wheel didn't hold. I can't imagine the force of a 1/2" bandsaw blade breaking was that strong... You can see that the tyre snapped about 12in away from the join.

Not sure what I'm going to do next, once I've finished crying. :cry:

A new wheel would cost about £200 inc. VAT although, Ian John did give me the name of a firm in South Wales who may able to repair something like this, which I'll probably try next. I'll send Startrite a message as well (even though the machine's out of warranty, being second-hand).

Has anyone had this happen before?

Lesson to all - if you think a blade might need replacing, do not hesitate to switch the saw off!! Learn from my mistake! :oops:

Olly.
User avatar
By big soft moose
#483502
bad luck mate but at least you didnt get hurt

i have heard, on here somewhere i think, about some startrites being re tyred with an adhesive cork strip rather than a rubber tyre - ive no idea whether your saw would be suitable for this but it might be worth a look
User avatar
By Blister
#483503
I replaced the tires on my old band saw , just the tire not the wheel

NO glue either , Heated them up in a bucket of boiling water and plopped them on :lol:

Big Soft Moose had the saw of me and he has now sold it on

Check with Startrite if you can buy just the tires :wink:
User avatar
By newt
#483504
Olly glad you survived. Thats two near misses this weekend Karls being the other, Think I might use hand tools for a while. :shock:
User avatar
By big soft moose
#483507
Blister wrote:I replaced the tires on my old band saw , just the tire not the wheel

NO glue either , Heated them up in a bucket of boiling water and plopped them on :lol:

Big Soft Moose had the saw of me and he has now sold it on



yep its with hanser now - nice little machine and none the worse for the experience - mind you it was a baby rexon , so the stresses and strains are may be a little different to that big startrite
User avatar
By Harbo
#483511
Wow another frightening tale, I've never had a blade break - glad you are OK.

I'm puzzled how the blade got out because most of it is enclosed? Is it the momentum of the wheels that pushes it out?

Somebody posted a thread a few weeks ago about replacement Startrite wheels from somebody on Ebay?
And there was one, a long time ago I seem to remember, about getting the wheels re-shod?

Rod
User avatar
By cambournepete
#483516
I'd contact Axminster and tell them what happened, assuming you got the saw from them.
As you say, the blade shouldnt break and the tyre should stay on...
User avatar
By big soft moose
#483520
cambournepete wrote:I'd contact Axminster and tell them what happened, assuming you got the saw from them.
As you say, the blade shouldnt break and the tyre should stay on...


do axminster sell startrites ? - i think olly got the saw second hand and the axcalibur blades came with.
User avatar
By big soft moose
#483523
big soft moose wrote:bad luck mate but at least you didnt get hurt

i have heard, on here somewhere i think, about some startrites being re tyred with an adhesive cork strip rather than a rubber tyre - ive no idea whether your saw would be suitable for this but it might be worth a look


this was the thread i was thinking of

http://www.ukworkshop.co.uk/forums/star ... ht=bandsaw tyre

HTH
By TrimTheKing
#483527
Why would you need a new wheel Olly? You can get tyres for these (well you can for other BS's) to be glued on as Blister says, just do that.

How the hell did the blade fly out of the top, isn;t the machine encased at the top? :shock:
User avatar
By Pete Maddex
#483532
Hi,

I posted the Startrite band saw wheel thread I got one because my top one had a gouge caused by the blade guard fowling it. They don't have any on Ebay at the moment but they had 30 and it seems they only sold one.
http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... K:MEWNX:IT

Pete
User avatar
By OPJ
#483535
Hi guys, thanks for all your comments. Thanks also to the mod who changed the title... :oops: No worries. :wink:

Mark, the only reason I mentioned replacing the wheel was because when I spoke to Startrite previously about the gouges, they advised that I would "have" to buy a complete wheel, as the rubber tyres are bonded (apparently!) to and cambered/balanced in the factory. It could be part-BS to get some money in their pockets but, on all other points, the technical guy I was speaking to seemed to know an awful about these saws and bandsaws in general (those gouges I mentioned were caused by a blade break while the previous owner was working with this machine).

By their logic, I'd have to "scrap" the old wheel - in which case, I may as well try replacing the tyre! :P If it doesn't work then, okay... I'll drop a line to Ian's recommendation (Recovery Rollers) and I'm really intrigued by the sounds of these cork-rubber tyres, assuming they aren't too expensive. Especially as you can adjust the camber with standard abrasive paper. :) Looks at the S&S website though, it looks like it could still cost a fair bit, with the required pot of glue (still, only a quarter the price of a new wheel!)

I'll also photograph this in a bit but there is a large hole in the top of the machine's casing - it allows the top wheel to protrude when you're cranking the tension up for a wide blade.
User avatar
By big soft moose
#483536
OPJ wrote:
I'll also photograph this in a bit but there is a large hole in the top of the machine's casing - it allows the top wheel to protrude when you're cranking the tension up for a wide blade.


was that a factory fitting or a user mod ? - doesnt sound safe to me, could you not build a raised cover.
User avatar
By 9fingers
#483543
As and when my Startrite needs tyre attention, I intend to glue on some poly vee belting - the type use for the auxiliary drive on most cars.
(the one that drive the alternator, power steering and air-con) They are about an inch wide and seem ideal for the job. The ends should be scarfed such that the direct of rotation closes the join.

Bob
User avatar
By cambournepete
#483594
big soft moose wrote:
cambournepete wrote:I'd contact Axminster and tell them what happened, assuming you got the saw from them.
As you say, the blade shouldnt break and the tyre should stay on...
do axminster sell startrites ? - i think olly got the saw second hand and the axcalibur blades came with.

:oops: :oops: :oops: :oops: :oops: :oops:
I'll keep quiet now... :oops: