What the best frame

Hey printer commanders,

I need a new frame for my reprap, I bought one from a kickstarter but the longer I use and fix it the more I see some pretty damming design flaws. Yesterday I calculated that I need some ~140$ more and even then I need to spend time and creativity to get a sub optimal printer. For that money I can get either a I3 frame or enough aluminum profile and belts to make a delta printer.

So my question now, what frame is the best in your opinion?

What do you have already (and therefor don't need) that's usable for a new printer? And how much do you have/want to spend? Do you want an open frame? Something enclosed? Do you have any special considerations that you want to explore such as an oversized build area or heavier/more sturdy construction to support light milling? Asking what is the best frame is a very subjective based on the person building it. It's like asking what is the best electronics, best color of filiment, or best stepper motor. There is no best, just ones that work well.

I chose a Mendel90 when I went with mine. It didn't look "crude" to me as some of the designs that used threaded rod. It's easy to work with, light, solid, and not all that expensive for the dibond if you can find a source that will sell you some smaller than a full sheet at a time.

I have all electronics, motors, bed, extruder a full printer.

You´re right i should be a bit more precise. I want a frame that needs few specialized parts and is sturdy enough to endure acceleration of >4000 at a decent print size of 25cm³

It would probably easiest to get a I3 frame, the mendelmax (http://reprapuniverse.com/catalog/images/mendelmax_1_5_frame_kit_large.png) is probaly sturdiest but also expensive, but my favorite is the Cerberus pup (delta) http://www.replicatemypart.com/images/puprender.jpeg scaled up a but, the only thing there is to find good carriages.

I would go for the Delta bot. All Mendel variants have the issue of the heavy moving parts which will make the acceleration a problem for the motors and the belts, not just the frame.

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Yes I like the delta alternative. I also found [forums.reprap.org]

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sungod3k
Yes I like the delta alternative. I also found [forums.reprap.org]

Yes that would be a good machine. RichRap knows his stuff.

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FFF Settings Calculator	Gcode post processors	Geometric Object Deposition Tool Blog
Tantillus.org	Mini Printable Lathe	How NOT to install a Pololu driver