Ultralight Design?

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Postby bg » Sat Feb 25, 2006 3:58 pm

Got all my framing drawn out, no new picture yet.

Ran some guesses on the final weight for steel framing/polymax covering, right now my guess is right around 400 lbs, if I use the spring axle I already have, which is really way to heavy for the job.

For lighting, I'm thinking a round touch-lite that runs on 4 AA's.
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Postby mikeschn » Sat Feb 25, 2006 4:43 pm

400#... that's light! I have not estimated any weights yet. I want to finish modeling it first.

Here's the framing since I've tweaked it. The biggest change is the 4" framing on the bottom... You can also see I've started on the bracket that I am going to mount the axle to...

Image

Now, however, it's time to take I break... I'll be picking up the car, with the new hitch on it shortly....

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Postby Micro469 » Sat Feb 25, 2006 5:07 pm

bg wrote:Didn't realize how easy the XY idea was...


Maybe I'm a little slow....but was mike talking in inches? E.G.-- 43.81, 40.31 37.01, 36.350.......you get the picture.. My tape measure has inches. 1/2 inches, 1/4 inches/ and 1/8's couldn't find the .81....

:roll:
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Postby mikeschn » Sat Feb 25, 2006 5:14 pm

Micro,

I could convert that for you if you are interested...

.81 for example is really .8125, aka 13/16". If you grab your calculator and divide 13 by 16 you'll get .8125.

Let me know if you're interested... it wouldn't take long.

Mike...

P.S. Are you laying out the ultralight on paper or plywood? Just wondered...
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Postby bg » Sat Feb 25, 2006 5:16 pm

Honestly, I rounded to the nearest 1/8". should be more than close enough for me.
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Postby Micro469 » Sat Feb 25, 2006 5:25 pm

mikeschn wrote:Micro,

I could convert that for you if you are interested...

.81 for example is really .8125, aka 13/16". If you grab your calculator and divide 13 by 16 you'll get .8125.

Let me know if you're interested... it wouldn't take long.

Mike...

P.S. Are you laying out the ultralight on paper or plywood? Just wondered...


That would be good, Honestly converting from decimal to fractions aren't one of my strong points. I'm the guy that measures twice, cuts once, and still wonders why it doesn't fit......
:lol:
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Postby mikeschn » Sat Feb 25, 2006 5:29 pm

Okay, here ya go...

But you still didn't tell me if you are drawing it on paper, or a piece of wood???

Ultralight
x, y
6 3/4, 0
3 1/4, 3
1 5/16, 6
5/16, 9
0, 12
1/4, 15
7/8, 18
2 1/16, 21
3 5/8, 24
5 13/16, 27
8 5/8, 30
12, 33
16 1/4, 36
21 11/16, 39
24, 40 1/8
27, 41 3/8
30, 42 1/2
33, 43 1/2
36, 44 3/8
39, 45 1/8
42, 45 13/16
45, 46 3/8
48, 46 7/8
51, 47 1/4
54, 47 9/16
57, 47 3/4
60, 47 15/16
63, 48
66, 48
69, 47 5/8
72, 47 1/8
75, 46 3/8
78, 45 1/4
81, 43 7/8
84, 42 1/16
87, 39 3/4
90 5/8, 36
92 5/8, 33
94 3/16, 30
95 1/4, 27
95 7/8, 24
96, 21
95 7/8, 18
95 3/8, 15
94 5/8, 12
93 1/2, 9
92, 6
90, 3
87 7/16, 0


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Postby Micro469 » Sat Feb 25, 2006 5:34 pm

mikeschn wrote:Okay, here ya go...

But you still didn't tell me if you are drawing it on paper, or a piece of wood???
Mike...


Actually, a great big piece of cardboard.... ;)
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Postby mikeschn » Sat Feb 25, 2006 5:42 pm

Okay, here's some more detail if you want to lay out the external framing as well... I even converted it to fractional units for you...

But alas, it's kinda big, so you're going to have to click on the link to see it...

http://www.mikenchell.com/Ultralight/ultralight9.jpg

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Postby bg » Sat Feb 25, 2006 6:23 pm

Looks like I'll be making a trip to the steel supply monday. Gonna try to have my ultralight done (well, dried in) for Cedar Hill in 3 weeks
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Postby mikeschn » Sat Feb 25, 2006 6:39 pm

Keep us up to date with lots of photos... Seems to me you've got plenty of room to host your photos! :ok:

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Postby subtearanean » Sat Feb 25, 2006 7:40 pm

I started a lightweight Modernistic type New Years Day 2005, worked on it up until March 2nd of that year. For the past year it's been languishing in the basement, occasionally calling out to me. I will get back to it sometime soon. Still lurking on the boards, getting ideas together.

Started an ugly webpage for it too..... http://tinyurl.com/rpnyk

My biggest hurdle will be the chassis.......I keep going back to Angib's Superleggera design

http://www.angib.pwp.blueyonder.co.uk/t ... tear32.htm

Seems to me for what I want the tear to do it will be fine.
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Postby bg » Sat Feb 25, 2006 8:26 pm

Mike,

Here's what I've drawn out for framing. I've also gone to a square door, No real reason to, and that may change. I also plan to keep track of the time spent building this one.

Image
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Postby mikeschn » Sun Feb 26, 2006 2:45 am

subtearanean wrote:I started a lightweight Modernistic type New Years Day 2005, worked on it up until March 2nd of that year. For the past year it's been languishing in the basement, occasionally calling out to me. I will get back to it sometime soon. Still lurking on the boards, getting ideas together.

Started an ugly webpage for it too..... http://tinyurl.com/rpnyk

My biggest hurdle will be the chassis.......I keep going back to Angib's Superleggera design

http://www.angib.pwp.blueyonder.co.uk/t ... tear32.htm

Seems to me for what I want the tear to do it will be fine.


I like what you've done so far.

And you may like the chassis that Andrew and I have worked out for the Ultralight. I should have something to post later today...

Mike...
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Postby bledsoe3 » Sun Feb 26, 2006 5:45 am

mikeschn wrote:Okay, here ya go...

But you still didn't tell me if you are drawing it on paper, or a piece of wood???

Ultralight
x, y
6 3/4, 0
3 1/4, 3
1 5/16, 6
5/16, 9
0, 12
1/4, 15
7/8, 18
2 1/16, 21
3 5/8, 24
5 13/16, 27
8 5/8, 30
12, 33
16 1/4, 36
21 11/16, 39
24, 40 1/8
27, 41 3/8
30, 42 1/2
33, 43 1/2
36, 44 3/8
39, 45 1/8
42, 45 13/16
45, 46 3/8
48, 46 7/8
51, 47 1/4
54, 47 9/16
57, 47 3/4
60, 47 15/16
63, 48
66, 48
69, 47 5/8
72, 47 1/8
75, 46 3/8
78, 45 1/4
81, 43 7/8
84, 42 1/16
87, 39 3/4
90 5/8, 36
92 5/8, 33
94 3/16, 30
95 1/4, 27
95 7/8, 24
96, 21
95 7/8, 18
95 3/8, 15
94 5/8, 12
93 1/2, 9
92, 6
90, 3
87 7/16, 0


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