pocster

Dewalt beast cracking tiles

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The beast has suddenly decided to crack quite a few tiles right at the end .

I try holding one side or the other when putting the tile through the blade - seems to make no difference. Platform and blade seem level . Any suggestions??

7D0F77F4-A406-4927-BE62-E576C564B019.jpeg

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Have you tried cutting in 2 passes?

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3 minutes ago, Mr Punter said:

Have you tried cutting in 2 passes?

Not sure what you mean ?

A shallow cut first ( not through the tile ) then a secondary cut ??

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1 minute ago, pocster said:

Not sure what you mean ?

A shallow cut first ( not through the tile ) then a secondary cut ??

Yep

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Posted (edited)
2 minutes ago, Mr Punter said:

Yep

Haven’t tried that . Means adjusting the cutter though on every pass bit of a pita .

Can try it though 👍

Edited by pocster

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Hmmmmm

I’m not sure what’s going on here .

The tile lifts slightly at the end where I push it in . Like the cutter is pushing down on the tile too hard . I would of normally thought a blunt blade ; but changed this blade a few months ago . A Dewalt blade so not cheap . Perhaps a different blade ??? Any suggestions ???

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Guess you can’t tell visually if a blades blunt . The edges certainly feel exceptionally smooth !!! 
50 quid a pop these Dewalt blades !!

DB5B1D29-AF70-4D5D-8AFC-7C015B05A7D1.jpeg

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😂

That photo with my feet make it look like a giga size blade !!

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Nah...normal sized blade...tiny feet!

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Looking at protiler website - makes my Dewalt blade look cheap 

Any recommendations ???

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1 hour ago, pocster said:

Haven’t tried that . Means adjusting the cutter though on every pass bit of a pita .

Can try it though 👍

 

No it doesn't.

 

It means doing them in batches of 10 to half then full.

 

Which is fine unless you are one of those silly sods who buys yuuuuuuuuuuuugggggeeeee tiles that weight 35kg each, in which case you deserve every cracked muscle fibre.

 

Quote

50 quid a pop these Dewalt blades !!

 

How many broken tiles will that pay for?

 

Quote

That photo with my feet make it look like a giga size blade !!

 

You are Twonald Dump and I claim my £5.

 

Suggestions:

 

- Are your tiles OK eg flat?

- I'd perhaps take the old blade into the shop to compare. Is it worth looking at a Screwfix "Trade rated" option, or call the Dewalt helpline to check how often you should change blades?

 

F

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If the tiles are hard it will wear the diamonds down. Get a softish house brick and dress it across the spinning blade, this will pull the adhesive from the blade and expose fresh diamonds.

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8 minutes ago, Ferdinand said:

 

No it doesn't.

 

It means doing them in batches of 10 to half then full.

 

Which is fine unless you are one of those silly sods who buys yuuuuuuuuuuuugggggeeeee tiles that weight 35kg each, in which case you deserve every cracked muscle fibre.

Yeah but I like dealing with 1 tile at a time like a true pro 🙄

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36 minutes ago, pocster said:

😂

That photo with my feet make it look like a giga size blade !!

 

Lucky it was just your feet on show or that blade would have looked even bigger!

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26 minutes ago, pocster said:

Yeah but I like dealing with 1 tile at a time like a true pro 🙄

 

My pro took them out of several boxes with different batch numbers at once and mixed them up to avoid stripes...

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I used a Vitrex Ultimate Diamond Blade  when I had my tile cutter. I used a few over the years for roof tiles, porcelain floor tiles and sandstone paving with no problem.

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Bought a new Dewalt blade - didn’t gawk too much at the cost now I’ve seen the price range for such things . Cutting much faster and smoother now 👍

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On 06/07/2021 at 13:36, pocster said:

The beast has suddenly decided to crack quite a few tiles right at the end .

I try holding one side or the other when putting the tile through the blade - seems to make no difference. Platform and blade seem level . Any suggestions??

7D0F77F4-A406-4927-BE62-E576C564B019.jpeg

It seems to me that something is going out of true towards the end and rather than the blade cutting through it is putting a load onto the tile which is cracking it.

 

It stands to reason that a good blade spinning fast will remove material thus cutting through, if this remains straight, level and true then the blade will continue on it's path, if at some point something tilts or turns or rocks, I could see the above occuring.

 

I had an issue with vibration, once the tile was nearly cut, the last bit was just cracking off - I ended up needing to get the tile to sit more firmly so it couldn't vibrate the backs of them their quite rough so sitting flat and firm was not an inherent characteristic of the tile. 

 

I would perhaps get some scrap tiles (looks like you may have a few!) and investigate how square everything sits in relation to each other particularly at the last section of the cut. If the issue is limited to the last 50-60mm then could you try cutting it with a wooden spacer to move the tile out further, if that cuts no issue then you know that something is happening at the final stroke.

 

Is the blade running dead straight the whole way? It is not by any chance taking a lean at the last section due to a loose rail or bearing or bent bit?

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Posted (edited)
9 minutes ago, Carrerahill said:

Is the blade running dead straight the whole way? It is not by any chance taking a lean at the last section due to a loose rail or bearing or bent bit?

Checked it all . As my first thought was wobbly tray or mis aligned blade . All seems solid too me …. Will try your idea of pushing the tile out from the tray for the final cut 

Edited by pocster

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