[ben]

Ok thats great, answered all I need to know for now.

I’m going to look into various power transfer mechanisms as I’m not sure how perfectly round I can cut that drive gear with the CNC. Will have to see what the accuracy is like.

I just need to finish the soundproof enclosure for it first, otherwise the wife won’t stand for that much noise cutting all those parts 🙂

I’ll update with a build log when I get going.

[ben]

Aha, I had wondered if all the parts would fit on a standard replicator.

Well I guess that solves it then, I’ll have to go CNC 😉

Would the increased mass of cutting from something like HDPE cause any issues with backlash or momentum? I assume that one of the many benefits of the design is that the arms are actually rather light making it easier to control accurately.

With regard to the drive wheels, is there anything specifically about them (other than their size) that is essential to the design? I’m just wondering if there might be an off the shelf alternative that I might be able to source in the USA.

As I understand it, I just need a really large step up ratio between the stepper motors and the drive wheels, the larger the better giving me more accuracy? I assume I can switch to a geared system over a belt driven system too without issue?

[ben]

Thanks for the responses guys.

If you can reliably pull off 0.2mm layers then you are doing as well as my MakerBot replicator 1. I haven’t yet finished a 0.1mm print at all!

Interesting that you auto level over the platform. Very cool.

Would expanding the arm length be possible to provide a bigger build plate?

I am thinking that I would quite like to cut most of the 3d printed pieces from hdpe since my MakerBot is so unreliable and my CNC is a lot more fun right now. Do you think it would be possible to modify the design for this? I’m fairly comfortable with cad and openscad.

[Author]

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