Board logo

Anybody good at geometry?
chrisg - 29/10/08 at 05:14 PM

I need to make a flat pattern of the top of this-



Circular curves at either end, both ends vertical, any ideas?

Cheers

Chris

02GF74 - 29/10/08 at 05:19 PM

what exactly do you mean by "I need to make a flat pattern of the top of this"?

Do you want the curved surface transposed onto a flat sheet?

There is info, on how to make a truncated cone from a sheet - you would need to ggogle for it as it is quite late and do not want to thin about this.

you can then work out the section of the cone that you need.

chrisg - 29/10/08 at 05:34 PM

well I need to cut it out of ali, so yes a pattern to place on the sheet to cut it out.

Sorry Chris you've lost me!

Cheers

Chris

IDONTBELEIVEIT - 29/10/08 at 05:44 PM

send me some dimensions chrisg and i'll draw it up for you
wayno!!

chrisg - 29/10/08 at 05:51 PM

Thanks mate!

Chris

r1_pete - 29/10/08 at 07:00 PM

there's a bit of software HERE that will do it for you.

Myke 2463 - 29/10/08 at 07:00 PM

Hi Chris. Check your email.

Cheers Mike.

Litemoth - 29/10/08 at 08:06 PM

Simply daub it in slow drying ink and with a smooth rolling action, print your shape out on a suitably large peice of paper.

joneh - 29/10/08 at 09:31 PM

quote:
Originally posted by Litemoth
Simply daub it in slow drying ink and with a smooth rolling action, print your shape out on a suitably large peice of paper.


Thats actually brilliant. Simple logic.

chrisg - 29/10/08 at 10:04 PM

quote:
Originally posted by joneh
quote:
Originally posted by Litemoth
Simply daub it in slow drying ink and with a smooth rolling action, print your shape out on a suitably large peice of paper.


Thats actually brilliant. Simple logic.


It would be if it actually existed.

No pattern = no part = nothing to daub ink (or anything else) on to.

Other than that I can't fault it.

Thanks to all for the help

Cheers

Chris


[Edited on 29/10/08 by chrisg]

02GF74 - 30/10/08 at 10:57 AM

are you sorted yet?

see here for cone stuff <--- *

you would then need to adjust for the segment that you are interested in.

* note, there is a better description but I;ve yet to find it.

wilkingj - 30/10/08 at 11:37 AM

And here

http://www.softpedia.com/get/Science-CAD/Cone-Layout.shtml

Litemoth - 30/10/08 at 05:54 PM

quote:
Originally posted by chrisg
quote:
Originally posted by joneh
quote:
Originally posted by Litemoth
Simply daub it in slow drying ink and with a smooth rolling action, print your shape out on a suitably large peice of paper.


Thats actually brilliant. Simple logic.


It would be if it actually existed.

No pattern = no part = nothing to daub ink (or anything else) on to.

Other than that I can't fault it.

Thanks to all for the help

Cheers

Chris


[Edited on 29/10/08 by chrisg]





If there's no part, pattern or anything else then it's a bit too existentialist for me. You might as well guess with a crayon - you can't get the dimensions wrong really.

This is a nice pattern though:


Description
Description

[Edited on 30/10/08 by Litemoth]

[Edited on 30/10/08 by Litemoth]