Dovetail Rating

Hello

We need to score a dovetail but we don't know anymore.

For the theory, we have the memotech and Chevalier...

Do you have any practical  examples (ideally from drawings) that you could give me for the male and female parts?

To put it in context, (in PJ, our model): it's just a movement of adjustment, we loosen the bacon, we move a few 1/10ths and we tighten.


presse-papiers-2.jpg

Hello

 

It's simple, you make a dimension on pegs for the male and female parts.

Use the same Ø of picks on the 2 pieces.

Remember to put a maximum radius in the female part and to break the angles on the male part.

 

 

I'll post you a plan as soon as I can.

S.B

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Hi @ stefbeno

See this link

http://www.zpag.net/Tecnologies_Indistrielles/Element_Cotation.htm

@+;-))

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I have plans at home for stylish furniture, I can give you that tonight if it's okay with you.

Here is the end of the plan.

 


pige.jpg
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@GT22: I wrote: "For the theory, we have the memotech and Chevalier... ", the -1 itched

@Bart, why not, normally the file should be finished tonight but I can pull a little to deliver it tomorrow in the early morning (by playing with the schedules).

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The dovetails were used to assemble the drawers.

 

I still have some pure ones at home that I can send you in pictures and even the page of the cabinetmaking treatise that deals with it.

 

After that, I don't know if in your field of application, the standards are the same.

@ stefbeno to make amends ;-)

Does it suit you?

@+ -))

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@GT22: it's better, maybe almost good!?

Try by putting the image in a PC rather than embedding it in the text. Currently I can't enlarge the image (or load it) to read it (unless I miss a manipulation).

see this link I don't have better ;-(

https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=29&cad=rja&uact=8&ved=0CE4QFjAIOBQ&url=http%3A%2F%2Fwww.astronomic.fr%2Fpost%2F2010%2F02%2F03%2F102-cotes-dimensions-des-queues-d-aronde-vixen-et-losmandy&ei=0_QHVeKpDYHrUIvBgIgM&usg=AFQjCNHBtq3V--jZ76FuNtj5Gi4uJh8G0A&sig2=E_IbO8MUB7BYmLW-6JrtXA&bvm=bv.88198703,d.d24

 

@+ ;-))

@GT22: You were almost there, 2 more clicks and you have the image on the full page (http://www.astronomic.fr/fichiers/cotes%20vixen%20et%20losmandy.pdf).

On the other hand, it wasn't a mechanic who drew, too bad.

 

@Bart, forget it, it won't stick.

you're mad at me today ;-))

I make an effort and this is how you reward me...................................  ( nasty  ;-) )

@+ ;-))

@GT22,

I'm going to add a layer of it, but a dovetail dimensioned on sharp angles, I don't see how the guy in the workshop is going to control his dimensions.

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well you don't make sharp angles

+ you risk an accident it cuts ;-))

@+ ;-))

Yes, and your shot rating is virtual and impossible to control.

(I'm talking of course about easy control with a pc or palmer.)

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s.b, you raise THE point: should I quote in theory and the machinist is doing his best to provide me with the compliant part, or should I indicate the dimensions directly on the gauges?

Even to quote in theory, it is not simple, the lack of clarity and example in the literature is probably not innocent.

here, in the office, we did find archives but they are too specific: in-house manufacturing, machine tool table guide function (we have former employees from Vernier).

Hello

I made this kind of pieces recently and based myself on a quote in force in the company:

  • Dimension on edges for the theoretical
  • Picking performance (Ø free to the machinist)
  • Rating on worthless pegs, just annotation "G6 on pegs" for the female part and "H7 on pigs" for the male part.

So it is up to the machinist to determine the dimension on picks that he must find.

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See this link

http://passion-usinages.forumgratuit.org/t2897-queue-d-aronde

there I think everything is said

Just read and it's good meca 

@+ ;-))

At home, as on the map I posted:

Theoretical dimension in parentheses (it makes it easier for the machinist to choose the cutter)

Dimension on the gauge plan defined at the BE (it saves the machinist from having to do the calculation

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In the end we thought a lot, s.b put us on the right track.

Here are the excerpts from the plan of our rooms:

On the female part, the corner dimension is out of the capture (we see the witness line)

 

And the bacon that comes to close the system: