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 ...
- 126k
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 ...
- 25.8k
11
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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 ...
- 3,430
11
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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.
- 469
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 ...
- 1,751
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.
- 26k
4
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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 ...
- 199
4
votes
Accepted
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.
...
- 64k
4
votes
Accepted
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 ...
- 191k
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 ...
- 126k
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.
- 23k
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 ...
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 ...
- 8,712
3
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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 ...
- 126k
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, ...
- 64k
2
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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. ...
- 443
2
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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 ...
- 76.8k
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 ...
- 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 ...
- 102k
2
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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 ...
- 126k
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 ...
- 8,273
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 ...
- 6,860
2
votes
Accepted
What is this kind of bracket called?
It is a slotted "L" bracket. It's available at most home stores.
- 76.8k
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 ...
- 40.5k
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 ...
- 126k
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.
...
- 191k
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 ...
- 126k
1
vote
Bandsaw cutting at weird angle
I know this is an old question, but there's other possibilities that haven't been explored here.
A bandsaw blade isn't rigid like most saws and are subject to twisting, which is why many people use ...
- 1,751
1
vote
Bandsaw cutting at weird angle
Check your lower blade guide. Blade guides are either blocks or small roller bearings. To be out that much, I suspect that someone didn't reset the guide after the last blade change, or perhaps the ...
- 3,368
1
vote
Accepted
Is a 7 degree slope for a roof too small in a rainy area?
It depends on the type of roofing you’re going to use.
Its steep enough for single-ply membranes. We use single- ply membranes down to 1/4” per foot.
Make sure you have adequate (large enough) ...
- 23k
Only top scored, non community-wiki answers of a minimum length are eligible