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Customizable chainmail bracelet

by pasutx, published

Customizable chainmail bracelet by pasutx Mar 2, 2013
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Summary

This is a bracelet generator. The bracelet is made of loose square rings linking to the rings next to them in the style of chainmail. Using the customizer you can define the lenght and width of the bracelet and you have some control over the size of the individual rings.

This idea of the chainmail rings comes from http://www.thingiverse.com/thing:45203, by Walter but it has been reimplemented in openscad.

Instructions

The customizer allows you to select the length and width of the bracelet. It is recommended that you start by printing a very short (40 mm) and narrow (2 rings) bracelet first to see how this thing prints on your machine. If needed you can increase the separation space between individual rings a bit in the customizer to see how well it works. To test the clasp I suggest you cut this short test bracelet in 2 and test if the ends are working well together. Then measure the circumference of the target arm and create the bracelet according to taste. Most bracelets will need to be around 15-25 cm and this may be a challenge for some build platform. So a rotation parameter in the customizer help you to put the bracelet along the diagonal of the build platform.

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I tried printing without a raft but had problems with the small pieces moving midway through the print. So I ended up adding a raft, which worked fine. It took several minutes to remove the raft carefully but no bracelet pieces were damaged. Now I have a perfect print but found that the bracelet clasp does not hold securely (as in "click" hold). The two ends definitely slide together, but there is nothing to keep them from sliding apart. Any luck with a modification that will hold it securely closed?

What settings do you use when you set this up in makerware for some reason I cannot get this to print at all the first layer doesn't lay down on the bed. - I am new to Makerbot but not 3d printing.

Sorry, I have not used makerware, I have used Slic3r and Repetier-host. It is not sure your problem is in makerware though. Have you succeeded before in printing objects which have lots of small "islands" on the first layer without a raft of any type? I could image there is a problem in the height calibration of the print bed.Another problem I have encountered is the filament slipping in the extruder causing the high speed of extrusion after a retract to (partially) fail.

I have managed to print this bracelet now I have added a Raft and it printed perfectly first time

great design! Print without support, it's possible and saves you a lot of time cleaning up!
Only one problem..it doesn't hold well enough around a wrist. That's why i made http://www.thingiverse.com/thing:149510 which will only work on the small '2-ring" version of the bracelet.

Thanx again! I will make lot's of them now....

lock-clip for Customizable chainmail bracelet by pasutx
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