Correcting 3815, 3816, 3817 (Minifig Hips & Legs)


Correcting 3815, 3816, 3817 (Minifig Hips & Legs)
#1
Hey,

I just "finished" the first step of the "leg rework process" Smile
The corrected hips+legs are attached to this post. The legs do not use subfiles at the moment.

edit: I updated all files on 2015-11-30.
edit2: The files are now on the parts tracker! (3815, 3816, 3817)

Here are the test scenarios from Magnus Forsbergs post

Code:
1 16 -10 -15 0 6 0 0 0 60 0 0 0 6 4-4cyli.dat
1 16 10 -15 0 6 0 0 0 60 0 0 0 6 4-4cyli.dat
1 16 0 20 0 20 0 0 0 20 0 0 0 10 box0.dat
1 34 20 12 0 0 -40 0 9.5 0 0 0 0 -9.5 4-4cyli.dat
1 13 0 0 0 1 0 0 0 1 0 0 0 1 3815b.dat
1 13 0 12 0 1 0 0 0 1 0 0 0 1 3816b.dat
1 4 0 12 0 1 0 0 0 1 0 0 0 1 3817b.dat

Code:
1 6 60 0 0 1 0 0 0 1 0 0 0 1 3815b.dat
1 7 60 12 0 1 0 0 0 1 0 0 0 1 3816b.dat
1 7 60 12 0 -1 0 0 0 1 0 0 0 -1 3816b.dat

0 // The same set-up in real parts makes it clear that the current 3816s01.dat is really wrong.
0 // It is possible to place this mock up on a 3023 in real parts, but not in ldraw-parts

1 44 60 40 0 1 0 0 0 1 0 0 0 1 3023.dat


Next steps:

- Create the subfiles
- Project existing patterns to the new legs (and fix possible pattern errors)

I estimate that it will take 3 to 4 months to transfer all patterns to the new leg.


Attached Files
.dat   3816b.dat (Size: 341 bytes / Downloads: 0)
.dat   3817b.dat (Size: 19.66 KB / Downloads: 0)
.dat   3815b.dat (Size: 407 bytes / Downloads: 0)
.dat   3815bs01.dat (Size: 6.75 KB / Downloads: 0)
Reply
Re: Correcting 3815, 3816, 3817 (Minifig Hips & Legs)
#2
Looking good,
But IMO the circular section of the leg has to be of the exact same size as the crutch in the hip, r=9 ldu (trans green cyli).
And I find it hard to accept the sloping backside, but as far as I can see there is no way to avoid that, without also increasing the diameter of that section. But then we have to change the hip too.

   


Attached Files
.dat   test legs.dat (Size: 802 bytes / Downloads: 0)
Reply
Leg Measurements
#3
Magnus Forsberg Wrote:But IMO the circular section of the leg has to be of the exact same size as the crutch in the hip, r=9 ldu (trans green cyli)

I measured the length of the foot with a vernier caliper. It is 8mm long (20 LDU). The circular section of the leg has a diameter of 7mm (17.5 LDU).
The circular section is centered with a resulting radius of 8.75 LDU... There is a slope on every minifig leg back. Don't worry it is just 0.045mm width per 1mm height.

Rise = 11mm
Run = 0.5mm

Slope = Rise / Run
Slope = 2200%

The slope is hard to spot with the human eye on a real pair of minifig legs.
The computer works like a magnifying glass. With very high zoom and bad aliasing you will see the slope blindingly easy.

edit: On the real part there is a small line parallel to the slope on each side. This small line makes the illusion perfect, as you can see here https://ministryofminifigures.files.word...erman3.jpg
Reply
Re: Leg Measurements
#4
I just took my vernier caliper and can confirm your measures.

/Max
Reply
Re: Leg Measurements
#5
I also have the same measurements, but , as I said, the circular section has to be 9 ldu, and it has to be placed in the middle of its rotation center. Please study the model I made, and look at the frontsection of the circular leg surface. The gap between the hip and the leg is too big.
Correct dimensions are irrelevant now. We have to make the new design look good, together with the hip. Keep the size of the upper leg section in the old design, but move the foot to a correct position.

The slope is real and true and a consequense of the redesign. The old design made the misstake and ignored the slope.
Reply
Re: Leg Measurements
#6
Thanks for your feedback. I will continue my work in the next weekend!
Reply
Minifig Hips
#7
I attached the new hips to the original post.
Reply
Subfile Strategy for 3817 (Leg Left)
#8
I think we need a whole new subfile structure for 3817, too.
A few legs are now moulded with two colours.

E.g.

The wolf-man from the minifig series 14.
Reply
Re: Subfile Strategy for 3817 (Leg Left)
#9
Is'nt that a different mould with different partnumbers?

I can read this on my parts
left foot = 20926
left leg = ??

right foot = 20932
right leg = ??
Reply
« Next Oldest | Next Newest »



Forum Jump:


Users browsing this thread: 1 Guest(s)
Forum Jump:


Users browsing this thread: 1 Guest(s)