How to stop this cutting problem - TilersForums.com

[Slippery]

I'm cutting 10mm thick porcelain and have cut three tiles this morning (600mm) and all three have chipped.
How can I stop this happening?

 

[Wishiwasatoptiler]

I had similar the other day with my sigma, 600x300 porcelain, put it down to not applying even pressure across the whole score as it occurred only near the edge and that seem to fix it, maybe one of the other lads with more sigma experience and help us both.

 

[Dumbo]

Have you tried taking it out and snapping over your leg.

 

[Flintstone]

Common problem which I’ve never managed to find a reason to. But as above, if the cut is big enough, snap it over your leg or put it on a flat surface with a nail or alike under the score line at one end, only a bit and push down on the tile

 

[Wishiwasatoptiler]

Your right there, it was only when I was cutting the long length it happened, I'll give that a go next time. Cheers fellas

 

[Bill]

Where are you trying to actually snap the tile?....too close to the end can result in chips like this.

 

[Wishiwasatoptiler]

My chips, not as severe as Slippery where at the end near the ruler guide, snapping at the opposite side

 

[Italy]

you have to crush 2 cm from the metric bar,
not on top of the other side

 

[Time's Ran Out]

Scribe as usual ( better on a Rubi) and tap the back with a toffee hammer!

 

[Andy Allen]

Had this a few times from what I have found out is it's due to the tiles being over fired which makes them brittle, another batch of the same tile may cut perfect with no issues...