Progress on my p3steel build.

3D Printing
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Progress on my p3steel build. I was lucky enough to borrow a 3d printer from the local library, and used the opportunity to print out a new set of parts.

Toolson http://www.thingiverse.com/thing:1054909 has a very nice set of parts that upgrade to a very stable machine. I did my own modifications to the front and back set of the y-axis plates. The original pieces could not withstand the tensioning of the y belt. For this reason I do not recommend this version of the p3steel.

I am using my own version of compact extruder for j-head (also on thingiverse). I also have my own version of the y-axis bearing clamps (eventually I will replace the plate with an aluminum one).

I also modified the extruder gears for added strength on the small gear nut trap, as well as higher tolerance (the gears are the hardest thing to print, I went through 4x 10 hour prints until I got an acceptable set).

The printer is extremely heavy. It has taken me a long time to get to this point of assembly, and a lot of modifications to parts, drilling, reaming, cutting, etc. I would put the assembly level at expert. You can still assemble this printer if you are new, but it will not perform to its full potential.

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Its very nice machine :slight_smile: i have used x ends from hephestos,they have belt tensioner. For x axis best looking parts are from latest version from jo prusa,it looks great :)
Also note that these M3 screws will collide with x axis
Btw my 3d printer has about 30 kg :slight_smile:
I am making one p3 for my wife in pink colour :slight_smile:

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The toolson x-axis fixes 2 major issues: the belt was not parallel, and the movement of the x-axis was coupled to the z-axis. While this is still an issue (realistically the z axis rods should be 10 or 12mm), at least the belt tension will have less of an effect on the z rods.
The y axis fixes the belt rubbing, and the parallel problem.

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I have solved weak z axis rod so that i cut x axis rods 5 mm shorter and then melted plastic on z parts with soldering gun over ends of x rods so that i can tension belt really hard.

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This form of x-axis uses 2 screws that push against the rods, and tightens the belt at the same time. It’s a simple solution to a long standing issue with the prusa i3.

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I assembled a 3D printer same as yours.

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Use treaded rods , i have changed mine also.