Mitre tool

[fatfred2]

Ok im looking at making up some framework this week, most of it needs mitre cuts.

I wanted a tool to accurately measure the angles and translate easily to the angle on my mitre saw (+- 0-45)

Something like this

http://www.amazon.co.uk/gp/product/...&pf_rd_t=101&pf_rd_p=455344027&pf_rd_i=468294

Or perhaps, does this translate easy for mitre saws?

http://www.ffx.co.uk/tools/product/Starrett Str505A7 0049659116779 505 A7 Pro Site Protractor 175Mm

or this

http://www.amazon.co.uk/Trend-DAR-2...1427154496&sr=8-1&keywords=trend+angle+finder

Or any others i missed, thanks v much.

 

[BigSnoopy01]

trend angle fix

checkout youtube for a few videos.

 

[ree]

Get (google) a sliding adjustable bevel tool for less than £3.

You simply mark the angle required on the wood to be cut, and then set the mitre saw to that line.

 

[fatfred2]

Get (google) a sliding adjustable bevel tool for less than £3.

You simply mark the angle required on the wood to be cut, and then set the mitre saw to that line.

Me no comprende I have an adjustable bevel, that only gives me a total angle not half...

 

[Dave54]

Mark a line on a piece of scrap from the angle taken off the job with a slide bevel, and bisect it using compasses or dividers.
http://www.mathopenref.com/constbisectangle.html
little bit fiddly working off the edge, but can be done.
Set the slide bevel to the new angle.
I don't know what the angle markings are like on modern mitre saws, but I generally take the markings on any machinery as a guide only.

 

[Deleted member 174758]

You need to use a pencil compass. Draw out the two edges on a piece of MDF/cardboard/lining paper. Draw a partial circle from where the two lines intersect. This partial circle must intersect the two divergent lines:

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• Deleted member 174758
• 24 Mar 2015
• 1

Using the points at which the two partial circles bisect the straight lines, draw two more (partial) circles which intersect:

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• Deleted member 174758
• 24 Mar 2015
• 1

Draw a line from the point at which the two lines intersect through the point at which the two smaller (partial) circles intersect:

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• Deleted member 174758
• 24 Mar 2015
• 1

You have now bisected the angle. This is a standard mathemetical approach which I was taught at school AND when I served my time. Anyone who calls themself a carpenter should have a pair of dividers or a pencil compass to achieve this - or know how to make a trammel (basically a piece of 2 x 1 with two panel pins knocked through) to do this.

Oops! I was fiddling about doing the same as Dave, but the dwgs take a bit longer.........

 

[Deleted member 174758]

I don't know what the angle markings are like on modern mitre saws, but I generally take the markings on any machinery as a guide only.

Generally pretty poor. Like you I take them as an approximation. In any case, since when are walls, etc plumb enough that you can measure and cut and be right first time?

 

[Dave54]

I was only faster by cheating and finding the drawings done!

A bigger slide bevel made of wood is handy for taking angles off walls and so on I've found.

 

[Norcon]

Try a Nobex Multifix which is basically a cheaper version of the festool adjustable bevel.

 

[AlanE]

I've got one similar to these-

http://www.amazon.co.uk/Silverline-...d=1427226952&sr=8-3&keywords=Bevel+Protractor

 

[ree]

fatfred2,

you claimed to be "making up ... some framework" that needed "mitre cuts".

Precisely, what kind of mitre cuts did you have in mind for framing? Can you direct me to a pic, of what you had in mind, on google?

 

[FortJefferson]

I have one of these.

http://www.axminster.co.uk/gemred-digital-angle-rule

I don't know how I've managed with out one.