Reduce Mendel to 8 Threaded Rod Bars, less scrap!

Figured out how to use 1 less bar in your Mendel Build, and gain 1 extra rod for your next Mendel.

For Mendel you need:
440x2
370x6
294x4
355x2
418x2

Instructions say 9 Bars, but you can do it in 8!

My way of cutting this is
370+294+294
370+294+294
440+440
330+330+294 EXTRA 294 PEICE!
418+418
355+355
370+370
370+370

Should I update the Mendel m4 data sheet?

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repraplogphase.blogspot.com

Should I update the Mendel m4 data sheet?

Please.

Nice bit of work, by the way. (You don't want to see the waste I created when I cut my darwin rods. Blergh.)

I think the spreadsheet is wrong in calling for two copies of D1 and two copies of D2. The mechanical drawing only shows one of each.


As I mentioned in an earlier post you can also get all the threaded pieces, including the three jigs, from eight lengths of 36-inch (914.4 mm) stock. That is useful in the USA where metric stock is less common and more expensive.

1: A+A
2: B+B+J3
3: B+B
4: B+B
5: C+C+J1
6: C+C+J2
7: D1+D2
8: E+E

JohnWasser Wrote:
-------------------------------------------------------
> I think the spreadsheet is wrong in calling for
> two copies of D1 and two copies of D2. The
> mechanical drawing only shows one of each.

I see two of each. [objects.reprap.org] shows them most clearly, D1 between the Z Idler and Z motor bracket, and D2 between the two Z Leadscrew bases (or is it the other way around?)


ps: [dev.forums.reprap.org]

Standing on the shoulder of giants !

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repraplogphase.blogspot.com

For Mendel you need:
440x2
370x6
294x4
355x2
418x2

Why does this require 9 bars?

Edit: I see it now. There should be an additional 330x2 in the above list. Good work in finding a way to use only 8.

Edited 1 time(s). Last edit at 12/07/2009 09:03PM by kitep.

Triffid_Hunter Wrote:
-------------------------------------------------------
> I see two of each.
> [objects.reprap.org]
> ly_3 shows them most clearly, D1 between the Z
> Idler and Z motor bracket, and D2 between the two
> Z Leadscrew bases (or is it the other way
> around?)
>
>
> ps: [dev.forums.reprap.org]
>

It looks like the rendering in the spreadsheet is not the same as the rendering in the assembly instructions. In the spreadsheet it looks like the Z motor brackets and the Z leadscrew bases are integrated together with a D1 on one side and a D2 on the other. Looks like Mendel is a bit of a moving target at this point.

We need to figure this out, surely someone who has put one together can just count the pieces! I don't want to update the Data sheet until we know which is which.

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repraplogphase.blogspot.com

[picasaweb.google.com]

Yeah, my printed Mendel uses the two extra M8 rods on the Z axis. I would guess that the Z bearing plates were split to fit on the Makerbot build area; thus the two extra rods. Easier to avoid warping problems too.

I used Triffid_Hunter's 8 Threaded Rod method today here is a picture of the result. Thank you for Posting Triffid_Hunter.

2 440 418 142
2 294 355 330 21
1 294 294 370 42
1 370 290 340
1 370 370 234 26
1 370 370 157 103

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