It's all about the angles...

[Rodpr]

This is a remarkable piece of craftsmanship.

Look at this post on Facebook


Now I need to find out what a stereotomical drawing is!

 

[Jacob]

This is a remarkable piece of craftsmanship.

Look at this post on Facebook


Now I need to find out what a stereotomical drawing is!

https://en.wikipedia.org/wiki/Stereotomy_(descriptive_geometry).A bit OTT that french job - they get a bit carried away!
A much simpler version was part of the C&G curriculum. Good practice for roof carpentry.
I wrote it up here:
http://www.owdman.co.uk/howto/howto2.htmI made a bigger lathe stand for my Arundel J4 Senior. Same principle "stereotomical" drawing producing rhomboid cross sections which are square shape on plan
Robin Cleverly did it the crafty British way!



It's a bit of a bodge, but that's how we won at Agincourt!

 

[Rodpr]

It looks like a great exercise for getting the hang of intersections on multiple planes but I don't think I could get my head around it now!

 

[Sideways]

You've discovered treteau.... (fr: trestle)
There is a history and tradition of French journeyman carpenters building these pieces and progressively more complex work while building the skills that would eventually be combined into a "master piece", the big work that would have them accepted as a master craftsman.

https://www.pinterest.co.uk/pin/538883911661810869/
There is a good deal of info out there.

 

[MF1000]

Styled on Notre Dame roof ..aka the forest

 

[Orraloon]

The skill level required to pull that off would be first class but its kind of a big showoff and definitely not practical woodwork. Going the wow factor on a bit of nice furniture is one thing but thats a trestle. Still different strokes for different folks.
Regards
John

 

[Adam W.]

What it is, is to show evidence of learning, understanding and skill.

What it is not, is to to show that they can make a trestle for working wood on.

There's a difference. HTH.

 

[Orraloon]

I tatally agree it is very skillful but I still wonder why not apply that skill to something more high end. Apprentice pieces come to mind. Kind of a solid 3D CV
.apprentice-pillar-fact-sheet.pdf
Regards
John

 

[Adam W.]

@Orraloon
That's what I thought too John. Some of the roof structure models that they make are very complex and beautiful objects in their own right.

 

[Jacob]

I tatally agree it is very skillful but I still wonder why not apply that skill to something more high end. .......

What though?
The idea is that it will be applied if ever you do a complicated enough roof - or even a simple trestle like the C&G example I quoted above - a very basic exercise in "stereotomy". You draw out a rod for all the components and then mark/ cut them to match. No "offering up" or similar shortcuts.
Roof geometry gets complicated even at a simple level and there are various aids such as roofing squares and tables. Or the pure graphical method of preparing a rod i.e. "......laid out using a full size stereotomical drawing".
https://sbebuilders.blogspot.com/2012/08/apprentice-carpentry-roof-framing.htmlPS I've made several sets of C&G trestles over the years. They are very neat but you can't tell there's anything clever about them until you turn one over and point out that the plan of the whole thing is rectangular, including the legs section on plan, but that a cross section of a leg is actually a rhombus or parallelogram

 

[HOJ]

I appreciate the skill that has gone into making his "showpiece" along with all the other "Compagnons du devoir" they make our carpenter/joiner training schemes look ridiculously inadequate, I am being polite.

 

[Max Power]

I appreciate the skill that has gone into making his "showpiece" along with all the other "Compagnons du devoir" they make our carpenter/joiner training schemes look ridiculously inadequate, I am being polite.

It wants to look good with 200 hours put into it

 

[Adam W.]

I appreciate the skill that has gone into making his "showpiece" along with all the other "Compagnons du devoir" they make our carpenter/joiner training schemes look ridiculously inadequate, I am being polite.

That's a fair assessment.

The NVQ system is hilarious, the carpentry level 3 is pretty much a glorified health and safety test. I appreciate it's not training, but still.