Looks like the i3 from Josef Prusa  is still very much under active development.

3D Printing
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1

Looks like the i3 from @Josef_Prusa is still very much under active development. Glad to see him posting on G+ again.

Originally shared by Prusa 3D by Josef Prusa

Wow, so many ppl here on Google+! Well, let me show you the new i3 default extruder here before other channels :slight_smile: more info on http://prusaprinters.org soon :sunglasses: reprap #3dprinting

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2

Really glad to see. I built a reworked i3 a few months ago and it’s the only device I’m using. The PB simple was passed down to the kids.

3

Good looking part. I use to use a similar setup with 2 top bearings and 2 lower bearings. I found LML8UU bearings that are 45mm long, I use those now instead of the 2 shorter LM8UU ones and find it slides much smoother than the shorter ones. they are also only about 10% more than the shorter ones each so using one instead of two works out cheaper.

4

Looks good!