Oxford eBooks scanner

[Oxford eBooks]

And here is the platern module all fitted together.
I've made some rebates for the glass to sit in so that no sharp edges are presented to the user, also to look neat.
Pleased with the results thus far.

[daniel_reetz]

This is absolutely beautiful work. Nice job, Oxford eBooks!

[Oxford eBooks]

This is absolutely beautiful work. Nice job, Oxford eBooks!

Thanks Daniel.
Cut the glass today. Was a bit untidy at first but I eventually got a pair of panes that I was happy with.
Pity everywhere's closed for Easter. I have my eye on something that would make a lovely retaining bracket for the glass.
Maybe glue and paint the platen module tomorrow instead.

Andy

[Oxford eBooks]

The scanner is starting to look like something now!



Next job is to put together the lifting mechanism. That's the part I've been waiting for.

[rob]

It is definitely looking like something! Did you put a small spacer such as a washer between the two bottom supports? If you don't, the arms you have in the foreground will tend to rub against the rear supports.

[Oxford eBooks]

I made some special bolts for the lifting arms today.
They have a shoulder for the bearing and an integral washer / separator. I'm going to just use one bearing for all but the front joint of the handle arm. I reckon that will need two to give it extra stability but the other joints won't need it.

[Oxford eBooks]

The platen module is now glazed and seen here undergoing a first simple test to OCR a children's reference book.



The lighting is jury-rigged and as it was pouring with British summer rain all day, I didn't fancy going up to the workshop to make a screw to hold the camera, hence the rubber bands.

However, despite all that, the results were impressive. With proper lighting and mounting on the cradle mech, the output promises to be outstanding.

... A lick of black paint wouldn't hurt either.

Andy

[daniel_reetz]

I love seeing this thing come together. Which cameras are you testing with?

[dpc]

I'm curious about something in the way that you've secured the glass to the frame.

In the first photo in this thread, you can see the rabbet along the frame edge that the glass fits into (this keeps the sharp glass edge from being exposed). However, in your latest photo, you've gone to using what appears to be 1/2" aluminum angle to secure the glass.

Is the rabbet still there, or did you trim that off. I'm wondering what those screws holding the aluminum angle are going into. There wouldn't be much material left if the screws were going into the rabbet wall.

[Oxford eBooks]

I love seeing this thing come together. Which cameras are you testing with?

I'm using a Canon powershot G5