Building a 3D Printer, RepRap Mendel Prusa2 by craynerd

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raynerd:
I`ve come quite a way with this build and have managed to do some prints:

Here is the extruder built up:

the extruder has some gearing which ultimately turns a hobbed bolt which grips the filament and forces it down through the nozzle:

All the electronics are wired up. I`m using RAMPS 1.4 with polulu drivers. The wiring is a mess and is the next step - getting it all tidy!!

So I didn`t do any calibrating and managed to get the motors moving. I didn`t realise that pronterface software had an extrude button and so I printed a test cube which didn`t turn out great but I was chuffed to bits!

...so what do you print when you`ve just built a 3D printer.... ?

A Ring Mustache of course!!!

My daughter likes the mustache!!!

So then onto something a little more tricky! Which first required me to calibrate the system. It wasn`t far off which is why it allowed me to get something half decent in the mustache and the square.

I decided to give this a go: It isn`t anything functional but it has a massive overhang and imagined it would be pretty tricky!
http://www.thingiverse.com/thing:15364

Video coming shortly...

raynerd:

ieezitin:
Cray

nice build i am watching closely. Sweet daughter its nice to include your family with the hobbies more people should do it.

Anthony.

ParCan:
Hi Chris

You have got your printer together really nicely.
A bit of fine tuning and you'll start to get some really nice prints from it.

My Thoughts are:
Nozzle temp may be a tad high - maybe 5 degrees. That should help with the Strings and Blobs.
1st layer Z Height is definately to low for the Cube. Set the nozzle 2 A4 paper thickneses above the bed.
Maybe a touch more retract.

I saw the scrape mark in the Blue tape - we have all done that ;)

Congrats on a really nice build.

Alex.

raynerd:
OK, I`ll bring the temp down and raise the z axis.

I have a problem! - I noticed this evening that on the, what should be verticals, they are sloping back slightly and not perfectly square to the table!!!!

Chris

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