Use case

[carlod]

Since it's a long time that this discussion is not powered, here more 3 models.

[carlod]

A summary of the things done (part with link, author and accuracy).
Can be copied to the first post in order to show the current status to everibody easily.

PART - AUTHOR - ACCURACY
coupling - carlod - GOOD
endstop-holder - carlod - GOOD
x-carriage - carlod - GOOD
x-end-idler
x-end-motor - kwahooo - GOOD
y-motor-bracket - carlod - POOR
z-motor-mount - kwahooo - GOOD
belt-clamp - carlod - GOOD
bar-clamp - carlod - GOOD
rod-clamp - carlod - GOOD
pulley
frame-vertex with foot
frame-vertex
pla-bushing

[carlod]

I've now noticed that I'm modelling version 1, kwahooo model version 2, so the status must be has follows

PART - AUTHOR - ACCURACY
coupling V1 - carlod - GOOD
endstop-holder V1 - carlod - GOOD
x-carriage V1 - carlod - GOOD
x-end-idler
x-end-motor V2 - kwahooo - GOOD
y-motor-bracket V1 - carlod - POOR
z-motor-mount V2 - kwahooo - GOOD
belt-clamp V1 - carlod - GOOD
bar-clamp V1 - carlod - GOOD
rod-clamp V1 - carlod - GOOD
pulley
frame-vertex with foot
frame-vertex
pla-bushing[/quote]

[kwahooo]

AFAIK only z-motor-mount is v.2, because v2 was uploated 11.11.2011.

PS I always recreate polygons with >6 edges as circle... There is inconsistency between my and your models.

[carlod]

AFAIK only z-motor-mount is v.2, because v2 was uploated 11.11.2011.

today I've downloaded everything from the source and the first file opened and started to model (coupling) is different from previous version.

PS I always recreate polygons with >6 edges as circle... There is inconsistency between my and your models.

So in your opinion in this image the hole is not a decagon but a circle?
But if you look at the other circle it contains many more edges..
Someone how can open the model in solidworks can solve this issue.

[kwahooo]

Here is OpenSCAD belt-clamp (the simples part) source

Code: Select all

// PRUSA Mendel
// Belt clamp
// GNU GPL v3
// Josef Průša
// josefprusa@me.com
// prusadjs.cz
// http://www.reprap.org/wiki/Prusa_Mendel
// http://github.com/prusajr/PrusaMendel

include <configuration.scad>

/**
 * @id belt-clamp
 * @name Belt clamp
 * @category Printed
 */

module beltclamp(){
difference(){
union(0){
translate(v = [0,0,3.5]) cube([18,10,7], center=true);
translate(v = [-9, 0, 0]) cylinder(r=5,h=7);
translate(v = [9, 0, 0]) cylinder(r=5,h=7);
}
translate(v = [-9, 0, -1])polyhole(m3_diameter, 12);
translate(v = [9, 0, -1]) polyhole(m3_diameter, 12);
translate(v = [0,0,6.5]){
translate(v = [0,0,5])cube(size = [7, 1.8, 10], center = true);
translate(v = [0,2.5,5])cube(size = [7, 1.8, 10], center = true);
translate(v = [0,5,5])cube(size = [7, 1.8, 10], center = true);
translate(v = [0,-2.5,5])cube(size = [7, 1.8, 10], center = true);
translate(v = [0,-5,5])cube(size = [7, 1.8, 10], center = true);
}
}
}
beltclamp();

The question: what is "polyhole"?
I've found this:

Code: Select all

module polyhole(h, d) {
    n = max(round(2 * d),3);
    rotate([0,0,180])
        cylinder(h = h, r = (d / 2) / cos (180 / n), $fn = n);
}

[carlod]

I think you are right..
http://hydraraptor.blogspot.com/2011/02/polyholes.html

[danielpublicswe]

Hi,

Really nice open design. But it does not look like it's been built yet.

Here's a link to an online store that sells a MendelMax plastic parts set: http://www.lulzbot.com/en/61-mendelmax- ... parts.html

So only 5 sets of plates are flat and could be made of lasercut steel. Still, these are what holds most of the frame together, and what I'd do is order them in lasercut aluminum, and try to get someone to sell me a plastic parts set without those plates.

There are at least three so far, no doubt that there are "a lot" of those out there by now! Suppose there is one or two on those there youtubes as well.
http://www.thingiverse.com/derivative:16361
http://www.thingiverse.com/derivative:16091

I'm sure lulzbot or someone on irc #reprap or the forum would help you out on that front, especially since you seem to contribute loads to FreeCAD. Hopefully, I get mine rolling next weekend or the week after that.

What would you like to do with your machine? There are also other alternatives like Cartesio of course, but that's a whole other level of fiddling for experienced users since much of that remains to be undocumented and something one could do after the fact. Anyway, have a look at a few different suppliers and you should more or less be up and running in no time!

[NormandC]

What would you like to do with your machine?

That's exactly why I'm not sure I should build one, even if I think it would be cool. I can think of a few things, like making custom toys for my nephew, other small stuff, but I fear I would run out of ideas or interest, and leave the RepRap unused on my desk. That'd end up being a pretty expensive paperweight...

What do you plan to do with yours?

There are also other alternatives like Cartesio of course, but that's a whole other level of fiddling for experienced users since much of that remains to be undocumented and something one could do after the fact.

Wow! Nice machine, in the picture it's set up to use a simple Dremel hand tool - I got one!

[carlod]

I've made the version 2 of some already done parts..