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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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19604 forum posts
997 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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4912 forum posts
726 photos

A fusion of modern electronic control gear and Newcomen wooden supports

Gary Wooding26/11/2021 10:20:54
932 forum posts
236 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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3154 forum posts
1435 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
5751 forum posts
13 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
4435 forum posts
265 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
18899 forum posts
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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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19604 forum posts
997 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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