Messages

8741

Show"N"Tell ( What you have made with your CNC machine.) / Re: oscillating knife

« on: November 29, 2008, 08:10:21 AM »

Hi Jacko,

Tailors and dressmakers use an oscillating knife to cut multilayers of material to shape - they should cut cardboard. I have checked with ebay uk but none to be found at the present.

Tweakie.

8742

Show"N"Tell ( What you have made with your CNC machine.) / Re: Some things I've made and did.

« on: November 29, 2008, 03:20:34 AM »

Thanks for understanding Ed.

Rich - your last pic of Logan would make a super lithophane if Kent is following this thread.


Tweakie.

8743

Show"N"Tell ( Your Machines) / Re: My cnc machine

« on: November 28, 2008, 08:26:58 AM »

Hi Christer,

You have certainly built a machine to be proud of. Please post pics of items that you have made with it.

Regards,

Tweakie.

8744

Show"N"Tell ( Your Machines) / Re: New CNC Machine

« on: November 28, 2008, 08:20:56 AM »

Wonderful setup Rick - how do you manage to have such a tidy workshop ?.


Tweakie.

8745

Tangent Corner / Re: Happy Thanksgiving!

« on: November 28, 2008, 08:07:49 AM »

Thats one smart turkey you have got there Dave.

Happy Thanksgiving everybody.


Tweakie

8746

Show"N"Tell ( What you have made with your CNC machine.) / Re: Some things I've made and did.

« on: November 28, 2008, 07:32:01 AM »

Hi Everybody,

Ed's thread seems to have gone to the dogs !.

This little fella has put and end to my CNC work for the time being. He will grow and stop chewing everything, including me, I hope. This photo was taken at one of the few moments when he is tired and i get a break.

Tweakie.


A bumper sticker seen recently :-

"The more people I meet, The more I love my dog".

8747

Show"N"Tell ( What you have made with your CNC machine.) / Re: Some things I've made and did.

« on: November 25, 2008, 05:51:36 AM »

Nice stuff Ed - I like Dracula the best.

Tweakie.

8748

Tangent Corner / I don't believe it.

« on: November 11, 2008, 03:04:48 AM »

Yesterday I went to collect some CNC stuff which I had bought on ebay. On the way home I stopped at McDonalds for refreshments and my wife was very quick to spot the 'peel off strip' competition on the coffee cups. No sooner had she peeled off the strip when she was jumping up and down saying "I have won a mobile home", "I have won a mobile home". I pointed out to her that she couldn't have won an RV because the first prize was only a Big Mac but she insisted that she had won a mobile home. When I finally got to see her coffee cup it said "win a bagel".


Tweakie.

 

8749

Tangent Corner / Re: Serious Puzzler

« on: November 09, 2008, 09:37:06 AM »

After some more serious thought, an idea comes to mind - If the OD of your piece parts are accurate then a jig /gauge (which is essentially a block with an accurately bored hole or collet) into which your part could be inserted to maintain it's roundness whilst it is measured with the tri-leg micrometer may possibly allow the ID to be measured correctly ?.

Tweakie.


(no trick - the coins are real)

8750

Tangent Corner / Re: Serious Puzzler

« on: November 09, 2008, 05:34:27 AM »

I believe the mathematical solution for finding the distance between any three equi-spaced points on the circumference of an ellipse is extremely complex and would therefore be difficult to demonstrate to anybody.

Having said that someone is bound to prove me wrong and solve your problem.

In consolation, when I was employed in engineering I remember that diameter and roundness tests were two entirely different things and the plug gauge was the master reference for hole sizes. The attached picture shows two seven sided coins, neither of which is round however measuring the diameter of either with a standard micrometer will show it to be the same diameter at any point of measurement.


Tweakie.