Diary of a Technocratic Anarchist

This blog is a lab notebook for my work with the Reprap open source 3D printing undertaking.

Wednesday, June 29, 2011

Printing flexible cable guides...

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There is not much to say about this.  Once I got two of the links printed and assembled so that I knew everything fit together, I bought ...
1 comment:
Sunday, June 26, 2011

Flex cable carrier

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I've never been happy with the way that Rapman handles axis and extruder cabling, so I decided to print my own flex cable carrier syst...
3 comments:
Tuesday, June 14, 2011

A "string wars" approach to the y-axis

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Darwin and it's direct derivatives uses two belt loops driven by a shaft connected to a NEMA 23 stepper. In Sampo, th...
8 comments:
Tuesday, May 31, 2011

Print table installed

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I had gone to considerable trouble to make sure that I sited the bolt holes in the MDF {medium density fibreboard} print table properly. T...
4 comments:
Monday, May 30, 2011

Ready to install the print table

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I got the last of the y-axis brackets printed and light mounted. It looks like the print table with be 420x420 mm.  I've des...
2 comments:
Sunday, May 29, 2011

Stepping into firmware

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Having had good experience with the Rapman's PIC32-based controller, I decided to stick with that MCU for my new printer.  As I mentio...
8 comments:
Tuesday, May 24, 2011

Winding up the String Wars

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I was finally able to finish making the connection between the z-axis lead screw and the cable turnbuckle for the z-axis positioning system....
11 comments:
Monday, May 23, 2011

NEMA 23 connected to the Z-axis lead screw

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With the completion of the gear pair last night, the connection between the NEMA 23 and the Z-axis lead screw is complete. That milest...
4 comments:
Sunday, May 22, 2011

A Z-axis gear set for the Sampo 3D printer

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Few experiences are more satisfying than a creating a useful device of great intrinsic beauty
Saturday, May 21, 2011

Another battle in the string wars: cabled z-axis working

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It took me 10 hours and fifty minutes to print the first print table bracket and I got a few measurements wrong, but it appears that the c...
Sunday, May 15, 2011

Refighting the String Wars.

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Back at the beginning of 2006, before there was even a Darwin, eD Sells at the University of Bath was designing Darwin's predecessor, A...
12 comments:
Monday, May 09, 2011

Solid prints

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Printing solid, structural objects is quite an art.  As I mentioned earlier, I am harking back to a very early effort that eD made with A.R....
9 comments:
Wednesday, April 27, 2011

Sampo: The return of Darwin...

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Actually, Darwin never really left. Despite all of the hoopla about Mendel, a very robust Reprap machine which is virally spreading ...
11 comments:
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