54 votes
Accepted

Is there a proper name for this kind of toothed disk?

What we have here is a Hirth Joint. A Hirth joint or Hirth coupling is a type of mechanical connection named after its developer Albert Hirth. It is used to connect two pieces of a shaft together ...
isherwood's user avatar
  • 137k
28 votes
Accepted

Cut a severe taper (70 degrees) using a compound mitre saw

Cut it perpendicularly. 70 degrees from 90 degrees (ie: a right angle) is 20 degrees. Square the end of your taper and put a mark in the middle. Set your saw on 20 degrees and place the mark so ...
The Evil Greebo's user avatar
11 votes

Cut a severe taper (70 degrees) using a compound mitre saw

At the risk of sounding like a complete idiot why don't you clamp a block to the saw fence so that the stake is skewed 10 degrees when flat against the block and fence? Then you can just set the saw ...
Matthew Gauthier's user avatar
11 votes

Is there a proper name for this kind of toothed disk?

Expanding from my comment on isherwood's answer. From the Hirth Joint article: Hirth-like joints are often found on camera support equipment, where they are called rosette [joint]s.
Tim Sparkles's user avatar
8 votes

Cut a severe taper (70 degrees) using a compound mitre saw

This doesn't have anything to do with saws, but it's too long for a comment. Instead of trying to come up with a better stake, maybe come up with a completely different solution. My first thought at ...
computercarguy's user avatar
6 votes

Finding angle to replace trim peice

So given you exclude the most obvious tools I would suggest cutting a card or cardboard template. Even a cereal box can be suitable for this.
Solar Mike's user avatar
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4 votes

Cut a severe taper (70 degrees) using a compound mitre saw

You could make a jig out of scrap wood. If you make a 25 degree jig, you could set the saw to 45 degrees. 25 + 45 = 70. Once you cut one side, lining up the other side will be a little harder. You'd ...
stannius's user avatar
  • 199
4 votes
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Cut 45 degree angle iron

Well, If you were intending to weld them together you have a few choices. Cut them as close as you can with the chop saw and then grind each joint into the appropriate fit for the 90 degree corner. ...
Michael Karas's user avatar
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4 votes
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Keeping a Threaded Pipe at 90 degrees

Assuming that they are threaded in correctly, you just need to apply adequate force. Pipe threads are tapered to make a seal (which you don't care about in this application) but there is considerable ...
Ecnerwal's user avatar
  • 214k
3 votes

How to cut the correct angle on transition strips

Firstly, note that the cuts on two adjoining pieces should have the same angle, but in the opposite direction. Failure to do this will result in something like you've shown us here, with points ...
isherwood's user avatar
  • 137k
3 votes

Will the 3-4-5 method work for making a table support?

No, 3-4-5 creates a right angle, not a 45 degree angle. In your example, “a” must equal “b” for “c” to have 45 degree angle cuts at the ends.
Lee Sam's user avatar
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3 votes

How to calculate length of roof sides when distance across is known? a2 +b2 = c2?

If it's a 45 degree angle, B=A. Or you can set any value you please for roof height. You don't need to know any trig, nobody cares what the angle is. People who do roofs work in rise/run ratio, not ...
Harper - Reinstate Monica's user avatar
3 votes
Accepted

Finding angle to replace trim peice

All you have to do is measure from the top of your existing trim piece on the left straight across to the wall molding. Then measure from the bottom of the trim piece across to the same molding. Take ...
HoneyDo's user avatar
  • 8,754
3 votes

Can I use angle bracing to support subfloor off the side of a joist?

No. Any cantilever needs a 1:3 overlap ratio at minimum. That means a girder joist inside the existing floor three times the overhang depth, a beam at (underneath) the edge of the existing floor, and ...
isherwood's user avatar
  • 137k
2 votes

How accurate does corner angle measurement on crown moulding need to be?

Cannot really answer your question because everything depends on you no matter what tool you use. Here are the four main factors: How crafty you with the tool when taking the measurement. Holding, ...
Michael Karas's user avatar
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2 votes

Cut a severe taper (70 degrees) using a compound mitre saw

Use a chainsaw. It won't look pretty, but it doesn't have to: remember, you're trying to stick a piece of wood in the ground, not build a cabinet. This would by far be the fastest and simplest method. ...
canadianer's user avatar
2 votes

Tips to get (close to) accurate bevel angle by handsaw?

I did something similar to this in my younger years when I needed a board cut with a 45 degree angle. I marked the cut line on the edges and face of the board. Then positioned the saw to the cut line ...
JACK's user avatar
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2 votes

Cut 45 degree angle iron

Abrasive chop saws make messy cuts to begin with and often have crappy fences. Helps if you take it nice and slow. Probably you're best bet will be to grind or file it - a miter fence on a stationary ...
CoAstroGeek's user avatar
  • 2,338
2 votes

Sink Angle Valve: Fully Open or closed Tiny Bit

These are 1/4 turn or ball valves, turn them fully on or off for best performance. Think of a bearing with a hole drilled through it. This is what a ball valve is there are 2 seals one on each side ...
Ed Beal's user avatar
  • 103k
2 votes

Will the 3-4-5 method work for making a table support?

Yes, you can assume that it will fit, but that won't get you a right angle in your table. Just cut a brace with 45 degree angles at each end and be sure that the ends are equidistant from the inside ...
isherwood's user avatar
  • 137k
2 votes

Keeping a Threaded Pipe at 90 degrees

They don't hold pressure so they do not need to be tight. Just stop turning when they are in the right postilion ; basically tighten then back off to the desired position. I have even done this with ...
blacksmith37's user avatar
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2 votes
Accepted

Measuring angle before cutting?

As pointed out in the comment, you can of course do it with a basic triangle calculator. Do yourself a huge favor and buy a speed square. They are $10 and are useful for so many things beyond just ...
UnhandledExcepSean's user avatar
2 votes
Accepted

What is this kind of bracket called?

It is a slotted "L" bracket. It's available at most home stores.
JACK's user avatar
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2 votes

Deck Beam end cut at angle

I'm not aware of any reason for the corner of deck beams to be clipped like that other than for cosmetic purposes or clearance from something else. My rafter tails have a lovely curved end and a ...
FreeMan's user avatar
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2 votes

How can I mate a stair skirt to the baseboard below?

I get the impression that you're using the same molding for the skirt under the finish stringer as for the base trim. If so, they'd meet like any other base trim corner... with a miter. You'll split ...
isherwood's user avatar
  • 137k
2 votes
Accepted

How do we determine ramp length and angle required for vehicle access to an elevated surface?

At given dimensions this drawing shows you would have a INCH of clearance when the car is half way in the garage. Using simple geometry it shows that a ramp length of 4 ft 11 inches the clearance ...
Traveler's user avatar
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2 votes
Accepted

How should I build an obtuse corner into my horizontal board fence?

You can have one post and mount both fence sections to it, one of them at an angle. But I think it might be easier to use a separate post for each section, and extend the fence boards a few inches ...
manassehkatz-Moving 2 Codidact's user avatar
2 votes

Question and the how to cut the angle of a 2x4 that is 109 inches long and 1 end is 3.5 down to 1.5

Why do you need to know the angle? Why not just mark a line on the board and then cut on the line? But if you actually need the angle, that is basic geometry. Which plenty of websites help you ...
manassehkatz-Moving 2 Codidact's user avatar
1 vote

Tips to get (close to) accurate bevel angle by handsaw?

Do enough work with hand tools and you'll come to appreciate the main handtool - a bench with several clamping/vise options. Something modern like a workmate is a start, but a bit light for the job. ...
Ecnerwal's user avatar
  • 214k
1 vote

How can I mount a composite rail kit on a ramp shallower than the brackets accommodate?

For that shallow of a slope I'd be inclined to look at level railing kits and their associated hardware instead. That would be a much closer starting point. I'd then mill some 11° wedges from ...
isherwood's user avatar
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