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Measuring and setting out tools

tinman

Member
Location
Ulster
i have one of these too, its not used every time but it has its place.
mine is the 12" version like this, iirc the black one is only about 6".
i know its really a carpenters square and the angles are close without precision but for metal work its a help.
s-l1000.jpg
 

DrWazzock

Member
Arable Farmer
Location
Lincolnshire
Just the slightest error with an angle gauge (even if they are accurate which most aren't) and it will be miles out at the end of the projected line. Best to work out the dimensions horizontally and vertically from the edge, mark the point where they meet and draw a straight line to it. E.g. 30 degrees is so much across and so much up, ( tan 30) or something on the calculator.

I keep meaning to make myself a set of fixed angle gauges three or four foot long for common angles like 30, 45, but have never got round to it.
 

TheTallGuy

Member
Location
Cambridgeshire
Just the slightest error with an angle gauge (even if they are accurate which most aren't) and it will be miles out at the end of the projected line. Best to work out the dimensions horizontally and vertically from the edge, mark the point where they meet and draw a straight line to it. E.g. 30 degrees is so much across and so much up, ( tan 30) or something on the calculator.

I keep meaning to make myself a set of fixed angle gauges three or four foot long for common angles like 30, 45, but have never got round to it.
Whenever I make anything I will make precision templates/guide blocks for cuts for future use, the trouble is that things often get repurposed before I realise what I'm doing. :banghead::banghead: Most recently found a load of timber with miter cut ends that were perfect for wheel chocks whilst working on the car, it wasn't until after they got cut up that I remembered that they were precision cut to use for marking up rafters for 20 & 22.5 degree cuts!
 

tinman

Member
Location
Ulster
have no fear, they arent that price, iirc i parted with 30 odd quid for mine and that id be the run of them.
times a seller will add a 1 to the price because they are out of stock and remove it when back in stock and if someone buys it for yon price then happy days for the seller i guess.
 

tinman

Member
Location
Ulster
The only thing its good for is the bin man.
I've seen better than that in the kids pencil case. What good is that in a workshop, its certainly not precision. I use a facom adjustable bevel gauge most of the time and occasionally a protractor on a combination square. £10 tops
i did mention it wasnt a precision item but i also said it had its place, i wouldnt lie but horses for courses i suppose.
altho if we were into that much precision then id suggest whipping out the sine block and slip gauges but i dont think the op wants to work within a thou altho i may be wrong.

as for the facom adjustable bevel gauge the cheapest one they make is about £50 iirc and for the protractor version i think its up on 2-300.
a good quality combination set is over 100 quid too last time i looked and even on the bay they fetch good money used.
all that makes the stanley look cheap enough really but as i said, horses for courses.
 
I have had my bevel gauge for about 30 years and can't tell you how much I paid for it but a quick look on line tells that at RDG Tools have a Moore and Wright Combination set square £93.00 and an indicator bevel protractor is £59.50 although I don't know where these are made.
Ebay can be a good place to get stuff but many on there do try it on. I get all my welding wire, grinding and flap discs but wont pay more than £1 for 9" grinding discs. £2 for 7" flap discs and last year I bought over 1 ton of welding wire at £6 per box so there are some good deals to be had.
 

AJR75

Member
Livestock Farmer
Location
Somerset
There's a whole plethora of tools out there. I personally like the mitutoyo gear but only have a combi square of theirs. IMHO the most valuable "tools" are those that you already possess in terms of grey matter, your eyes and your hands. A knowledge of basic trig goes a long way and a 3,4,5 measurement will be as accurate over millimetres as it is metres, measure your diagonals for square, angle cuts use a splay measurement- it's absolute over the length of the cut and 100% accurate. Same applies to setting up angles- use trig and absolute points wherever you can. Setting out table is handy- we levelled our tables in with a dumpy level to make sure they were flat (never trust the floor!).

So in summary of bits to buy:

Tape/ tapes
Combi square
Calculator
Steel rule
Decent straight edge
Plentiful supply of chalk

Not a great deal you can't set out fabrication wise with the above.
 

renewablejohn

Member
Location
lancs
There's a whole plethora of tools out there. I personally like the mitutoyo gear but only have a combi square of theirs. IMHO the most valuable "tools" are those that you already possess in terms of grey matter, your eyes and your hands. A knowledge of basic trig goes a long way and a 3,4,5 measurement will be as accurate over millimetres as it is metres, measure your diagonals for square, angle cuts use a splay measurement- it's absolute over the length of the cut and 100% accurate. Same applies to setting up angles- use trig and absolute points wherever you can. Setting out table is handy- we levelled our tables in with a dumpy level to make sure they were flat (never trust the floor!).

So in summary of bits to buy:

Tape/ tapes
Combi square
Calculator
Steel rule
Decent straight edge
Plentiful supply of chalk

Not a great deal you can't set out fabrication wise with the above.

I have 5 lengths of wood 3 x3ft 1 x4ft and 1x5ft with 3 bolts. from that I can make a 345 or 333 triangle which will give 90, 45, 22.5,15 angles or 60, 30,20, The intermediate angles given by a piece of string attached to a plumb bob over a nail space at 1/3 or 1/2 along the length of the wood. Maybe need some metric wood and metric lengths when I start putting up this 25 x 15 metric building.
 

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Webinar: Expanded Sustainable Farming Incentive offer 2024 -26th Sept

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On Thursday 26th September, we’re holding a webinar for farmers to go through the guidance, actions and detail for the expanded Sustainable Farming Incentive (SFI) offer. This was planned for end of May, but had to be delayed due to the general election. We apologise about that.

Farming and Countryside Programme Director, Janet Hughes will be joined by policy leads working on SFI, and colleagues from the Rural Payment Agency and Catchment Sensitive Farming.

This webinar will be...
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