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Coin Scanner with Edges

by cabrera, published

Coin Scanner with Edges by cabrera May 4, 2010

Description

This is a quick draft of an idea that I have been kicking around in my head. Since Makerbot is having a design contest, I thought two birds with one stone.

This scanner allows the user to place a coin on a scanning plate and let the machine center, image obverse and reverse and then scan the edge. Edge scans are key in collecting some coins and edge scanning is a pain to do manually. So here is the idea and prototype layout. Joints and axis are placed and should allow full range of intended motion.

The attached file is for a program called Carrara. I have used it in the past and it works for a rush prototype explanation job. I'll also upload the *.obj file.

Recent Comments

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The camera on a stick would be a web cam for prototype design. Later, a cellphone camera would replace it as an upgrade. The edge scanning is likely to be several images stitched together. The prototype would use a batch function for something like paintshop to test. Coin diameter and motor ratios need to be worked out to get best results. I have a design change in mind to get the positioner on the glass plate without obstructing view of lifting away.

Coool - well thought out. love to know what software you use for the edge scanning with the camera, essentially you are doing a flat-bed scanner on a stick thing for the edge.?

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Coin Scanner with Edges by cabrera is licensed under the All Rights Reserved license.

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Bophoto on May 5, 2010 said:

Coool - well thought out. love to know what software you use for the edge scanning with the camera, essentially you are doing a flat-bed scanner on a stick thing for the edge.?

cabrera on May 6, 2010 said:

The camera on a stick would be a web cam for prototype design. Later, a cellphone camera would replace it as an upgrade. The edge scanning is likely to be several images stitched together. The prototype would use a batch function for something like paintshop to test. Coin diameter and motor ratios need to be worked out to get best results. I have a design change in mind to get the positioner on the glass plate without obstructing view of lifting away.

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