#91
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Good practice and more satisfaction too!
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Marcus aka. Gojeep Victoria, Australia http://willyshotrod.com Invention is a combination of brains and materials. The more brains you use, the less materials you need. |
#92
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you should watch Tom Lipton (Ox Tools) on youtube He has hundreds of machining videos which demonstrate first rate machining techniques.
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Sean |
#93
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Sean: thanks for the tip. My machining knowledge has a long way to go
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Joel Heinke Be original; don't be afraid of being bold! |
#94
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Marcus: that's right, I always feel better when I can make a part instead of buying it.
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Joel Heinke Be original; don't be afraid of being bold! |
#95
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Door window glass
An open question is whether the C4 Corvette side window glass will work in this Miura. It’s the most obvious choice since I know it matches up to the windshield post. What still needed to be figured out is if the side window glass is too long/wide. One thing I know with the side windows is that they are made from tempered glass. So they will either work or not as tempered glass cannot be cut.
The Corvette doors are longer than the Miura’s and thus the side glass is as well. But my Miura has a longer wheel base than the original so it really comes down to if the longer doors and side glass support the Miura look or not. The best way I know to answer that is to do a visual mockup. So I further secured the door posts/cowl with some ratchet tie downs, put the Corvette targa top in place and mounted the doors. I did lighten the doors by removing door skins, electric locks, electric mirrors, etc. before mounting. The electric window lifts still work fine on both doors once I untangled the wiring mess to figure out how to get power to them. Adding the doors helped give a visual but I needed more. So I added some cardboard to simulate the back portion of the door, the triangle of bodywork that’s between the door and rear clip, a strip at the door front, and a ruler to mark the bottom. Marking the door bottom told me the Corvette window lifts will need to be cut and bottoms raised about 2 inches if the side rocker height is to be maintained same as Miura. When fully retracted, the Corvette side windows go all the way to the door bottom so shortening the lifts means the windows won’t be able to retract all the way inside the door. With the cardboard extending the door up to the top of side window, the Miura look really started to emerge. But to be sure, I thought it worthwhile to do some quick and dirty Photoshop editing to add more of the Miura bodywork. I started by adding the cabin bodywork. And then added on the front and rear clips. Now there’s the visual I wanted and needed. This tells me the Corvette side glass should work out fine. It also tells me the windshield placement from a fore and aft perspective is also good. Another thing I knew, but this validates it, the wheels need to be larger in diameter than are currently on the car. The tires need to be about 1.5 inches taller/larger or they just look too small. My first impression was that the roof should be lowered some and thus the windshield also lowered. The roof height as the car sits right now is 46.5 inches from the ground. There’s about 2 inches clearance between the top of my head and the inside of the targa top right now. I’m not too worried about that as I can easily pickup another couple of inches with thinner/lower seats. It’s the door glass and electric lifter height that’s more worrying to me. I think I’ll do some more Photoshopping to see the visual effect of shortening the rocker panel that runs between the front and back tires. That rocker panel has more visual effect on the Miura than most cars because of the tradition of painting it in silver. If I can shorten the rocker height with no ill visual effects, then I can lower the roof, windshield and doors together. Otherwise, the roof height might just be exactly where it needs to be and I’ll have to look into other ways to make the top look shorter even though it isn’t.
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Joel Heinke Be original; don't be afraid of being bold! |
#96
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First Impressions
Quote:
Best, Kelly
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Kelly Coffield www.inlinecarb.com - My Old Carburetor Habit http://www.alloyavenue.com/vb/showth...nace-Build-Log - My Home Foundry Furnace Build Last edited by Steve Hamilton; 08-03-2018 at 02:46 PM. |
#97
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Quote:
You're exactly right, the roof needs to come down. My first Photoshop attempt was really quick and dirty. So I decided to repeat it again this time starting with a different and unaltered Miura picture. I was also more careful during the edit process to only scale and warp bits where absolutely needed. Here's my second try. With the roof at this height, the sleek, low slung Miura look is lost. So the roof and windshield must come down. I'll start with 1.5 inches since I can do that by removing spacers and not cutting the door post metal yet. We'll see what that does and if it captures the low slung look. If not, rinse and repeat.
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Joel Heinke Be original; don't be afraid of being bold! |
#98
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What I see is that the B pillar on your sketchup is too tall. On the "real" Miura, the roofline has already begun to descend by that point. On yours, that's the high point.
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Kyle Boatright Atlanta, GA |
#99
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I think that is much better.
Quote:
Best, Kelly
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Kelly Coffield www.inlinecarb.com - My Old Carburetor Habit http://www.alloyavenue.com/vb/showth...nace-Build-Log - My Home Foundry Furnace Build |
#100
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Top chop - well a virtual chop anyway
The previous feedback was that the roof line was sitting too high and this resulted in a bloated look. So I lowered the windshield/cowl/door unit such that the top of the windshield frame is now 43 inches from the ground, so a 1.5 inch chop. I’m guessing this will give a roof height of about 44 inches. The car bottom is set at 5.5 inches from ground, so where I want it to be.
I repeated the routine of pushing the car out of the garage, taking photographs, and adding on the bodywork with Photoshop. The top car is an unaltered Miura SV, the middle is the stretched rendition Superleggera/Mark did, and the bottom is my chassis with bodywork copied from top car (and tweaked to fit). I think the top chop has made a world of difference in the look. It gives me confidence that the Corvette windshield and side glass will work out. I think there’s still room for more body shape refinement but I’m happy with the vertical windshield placement now. I’m also going to start experimenting with shortening the electric side window lifts. It looks like I need to take about 4 inches out of the 20 inch tall lifts while retaining the current fore/aft closed window placement. I think it’s doable but will take so work to figure out how.
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Joel Heinke Be original; don't be afraid of being bold! |
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