Skirting Mitres!!

[electrified]

Hello I’m trying to cut skirting board mitres but my issue is that I have 6 inch skirtings and will not fit under my chop saw upright against the fence is it called?

So I was under the assumption okay no worries I’ll lay it flat and use the bevel angle, however after some searching it appears this gives you a complementary angle on the piece you need?, so say I set the bevel to 30degrees, it’ll leave me with an angle of 60 on the skirting. This obviously isn’t what I want, I’ve measured my wall and the angle is 87.5degrees, so half of that is 43.75degrees, but if I want to use the bevel I need to subtract this from 90, so 90-43.75=46.25degrees, but my chop saw only goes to 45degree bevel, is this right or am I missing something big? I feel like this is a tool limitation?

Thanks.

 

[crank39]

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[chirpychippy]

On a chopsaw, if you lay the piece of skirting flat on the bed and set the angle at 45 degrees, the mitre it will give you is 45 degrees.

If you set it at 30 degrees the mitre on the skirting will be 30 degrees not 60 degrees, if you cut two pieces of skirting at 30 degrees and glue them together you will have a 60 degree angle.

So setting the bevel angle at 43.75 and cutting two at this angle will give you an angle of 87.5 when both boards are joined.

If it doesn't there is something wrong with your saw.

 

[electrified]

Hi yeah I’ve done this but instead of me getting an acute angle for my wall it give me an obtuse more than 90 that’s why I thought about if you needed to take it away from 90, just wish all my walls were 45, I’m not sure what I can do I’m really lost.

 

[foxhole]

Just cut at 45 and fill any gaps.

 

[electrified]

Just cut at 45 and fill any gaps.

Haha yes could do worst case, do you fill it with caulk or something else?

 

[foxhole]

Haha yes could do worst case, do you fill it with caulk or something else?

Caulk , hide a 100 sins.

 

[aveatry]

Are you talking internal or external as he best way to do internal ones is to use the scribe method and not mitre.

 

[electrified]

Are you talking internal or external as he best way to do internal ones is to use the scribe method and not mitre.

Yes this one I’m talking about is internal which might be better to scribe, is that the professional way to do it scribe all internals and mitre all externals?

 

[aveatry]

Yes this one I’m talking about is internal which might be better to scribe, is that the professional way to do it scribe all internals and mitre all externals?

I am DIY. Yes I tried scribe method a few years ago after years of struggling to mitre everything the scribe method is much better and you get a perfect join every time. Internal scribe external mitre means that you are not struggling to get both ends right - just the mitre external.

 

[crank39]

Internal are always scribed, it stops the mitre opening up if you fix the skirting with screws

 

[phmode]

If your saw does not go 'past' 45° (and yes, that is a limitation of the tool, most good mitre/chop saws go past 45° by a few °'s) then lay a thin piece of scrap (card or thin timber) under the edge of the board you want to cut. This will lift the edge off the bed of the saw and allow you to cut angles less than 45° depending on the thickness of the scrap piece. Some trial and error will get you spot on by just taking a smidge off each time. You only need a difference of 1.25° so a thin piece of card should do the trick.

 

[electrified]

If your saw does not go 'past' 45° (and yes, that is a limitation of the tool, most good mitre/chop saws go past 45° by a few °'s) then lay a thin piece of scrap (card or thin timber) under the edge of the board you want to cut. This will lift the edge off the bed of the saw and allow you to cut angles less than 45° depending on the thickness of the scrap piece. Some trial and error will get you spot on by just taking a smidge off each time. You only need a difference of 1.25° so a thin piece of card should do the trick.

Yes I found this out, about 67mm from the blade put a 1mm packer and this will give you 1 degree more, very handy