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With a hammer and a bread-knife [nearly]

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Michael Gilligan26/11/2021 09:20:42
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20289 forum posts
1064 photos

I was amused and amazed to find this video, and several more in similar vein:

How to make Polar CNC drawing Machine

**LINK** : https://youtu.be/dl_XWb1AK2U

The primitive constructional technique, and the brilliant results, combine to make the man a star.

MichaelG.

Ady126/11/2021 09:30:04
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5175 forum posts
738 photos

A fusion of modern electronic control gear and Newcomen wooden supports

Gary Wooding26/11/2021 10:20:54
996 forum posts
255 photos

Quite amazing. Even the little detail of using cable ties as a circular clamp.

Nicholas Farr26/11/2021 12:48:48
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3418 forum posts
1592 photos

Hi MichaelG, just goes to show that not everything has to be made to a high accuracy, even the slight wobble on the motor pulley didn't seem to cause any issue. I've used cable ties many times as circular clamps and some of them can be used again if all of them don't need pulling up too far.

Regards Nick.

Howard Lewis26/11/2021 13:10:08
6310 forum posts
15 photos

As an aside, releasable cable ties are available, and very useful they can be!

Especially as they tend to be wider and stronger than the single use alternative.

Howard

John Haine26/11/2021 16:37:10
4716 forum posts
273 photos

I suddenly get why Joe Noci wanted to do C axis wrapping...

Neil Wyatt26/11/2021 17:35:34
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Moderator
19076 forum posts
736 photos
80 articles
Reversing a section of belt to make a custom pulley is a great idea, I wish I'd thought of it.
 
Neil

Michael Gilligan26/11/2021 21:54:35
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20289 forum posts
1064 photos

I sensed that MrInnovative was a star … and this Serbian research paper references him:

**LINK**

https://www.researchgate.net/publication/346007437_Configuring_of_3-axis_vertical_CNC_Machine_for_Rapid_Prototyping_with_two_Translatory_and_one_Rotary_Axes

MichaelG.

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