BATMAN v SUPERMAN Dawn of Justice BATMOBILE
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Posted 8/2/2017 6:32:10 PM
Supreme Being

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Shock Absorbers and Coil-Over Spring Calculations

There are many shock absorbers with coil-over spring plug in
calculators on line. The best I have found, so far, are related to the
Off-Road shock and spring guides.

One of the best is found at:

CRAWLpedia – The Off Road Encyclopedia
www.crawlpedia.com

Twelve Off-Road Shock Guides

Performance off-road racing shocks, like those available from King,
Fox, and Bilstein, are designed to be easily rebuilt and custom tuned.
Our Shock Valving Guide and Shock Tuning Guide explain how shock
valving works and how shims are used to adjust compression and rebound
damping.

Crawlpedia Shock Shootout:
A detailed review of every major brand of performance off-road shocks.

ORI STX Struts Guide:
A complete guide to ORI STX Struts including setup and tuning instructions.

Shock Measurement Guide:
How to properly measure for a new set of shocks, coil-overs, or struts.

Coil-over Install and Setup Guide:
This detailed guide covers how to install and setup a new set of coil-overs.

Coil-over Spring Rate Corrections:
If your coil-over spring rates are off, this guide will show you how
to fix them.

Performance Shock Valving Guide:
A thorough explanation of how shocks and their internal components work.

Performance Shock Tuning Guide:
Detailed instructions on how performance off-road racing shocks are tuned.

Shim Stack Valving Examples:
Seven sample compression and rebound shim stacks from light to firm.

Race Shock Rebuild Instructions:
How to service and rebuild King Off-Road Racing shock absorbers.

Coil-over Spring Rate Calculator:
Find the proper coil-over spring rates for your vehicle with this calculator.

Hydraulic Bump Stop Guide:
Everything you need to know about hydraulic bump stops and jounce shocks.

Shock Oil Volume Calculator:
Estimate the amount of shock oil you need to refill your performance shocks.
Post #159229
Posted 8/3/2017 7:34:56 PM
Supreme Being

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I placed a copy of this post here for informational and historical purposes only.

Mounted a 44" Super Swamped with a method used by some off roaders and many others to mount tires.
This is not a method recommended by anyone due to the danger and liability issues associated with the method. Most use the disclaimer: For Informational Purposes Only.

The story of my experience with this method is not a recommendation for its use. Though my experience turned out well, the method is dangerous by definition.
Used this method today to mount one of my Super Swamper tires on a test steel rim.
Tried it with the tire standing up but gas blow by prevented the bead from seating.
When I laid the tire on it's side the method worked like a charm.
Sprayed approximately 2 ounces of starter fluid past the unseated bead around inside the tire.
Waited a couple of minutes to allow the liquid starter fluid to vaporize.
Then put a wadded up piece of paper on the end of an eight foot section of old conduit.
Set the paper on fire and held the flame near the unseated bead.
Poof, as almost in slow motion the tire inflated from the expanding gases and the beads seated perfectly.
Note: One off road site reminded its viewers to make sure a valve stem was seated in the steel wheel to hold the gas pressure inside to hold the beads in place.
Many off road sites also remind their viewers to never lean over the tire/wheel and to always set off the starter fluid ignition with a flame at the end if a long piece of steel rod or pipe.
I inflated the tire to 25 PSI and took all the relevant measures to use in determining the appropriate dually spacing. vertigo
Mounting tires with starter fluid.
Here is a YouTube video for mounting the 44" inch Super Swamper with starter fluid.
Exploding Super Swamper Mount
TheJhall87
There are thousands of videos that show the starter fluid method to mount all kinds of tires on line.



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Post #159237
Posted 8/4/2017 7:58:01 PM
Supreme Being

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Decided to take a day off from Tumbler building and did a little comparative research between the DOJ Batmobile, Dodge Ram 1500, and Doge Ram 3500 using three 1/25th scale models. vertigo

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Post #159238
Posted 8/14/2017 7:19:00 PM
Supreme Being

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Did some donor research today on the DOJ.

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Post #159257
Posted 8/21/2017 7:32:34 PM
Supreme Being

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There are several pieces for my DOJ Batmobile I will use this technique on.
Today I continued to work on building the U-shaped upper shocks and
actuators integrated mounting and frame assembly.
Specifically, on the long lead pieces and the U shaped bend.
It would take a huge hydraulic bender a very high strength dies to be able to bend 2" x 2" x 1/4" wall square tubing. Since this type of bender and dies are not available to me I am using an old school method to fabricate the U-bend. Basically I have separated the four sides and bending planes of this part. This way I only have to work with one direction of bending force at a time. I completed the upper and lower planes that included the U -Bend shape curves. For the inside and outside curves I will cut two flats 1-1/4" wide and 1/4" thick. I will then use an acetylene/Oxygen rosebud tip to heat these flats up and then work these around the inside and outside curves. Then weld these to complete the U-Bend square tubing. This method can be used for anything similar.



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Post #159278
Posted 8/22/2017 6:44:34 PM
Supreme Being

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Like it or not, this gives us a good clear look at Batman’s newly
modified Batmobile for the Justice League movie.
The photo of the Justice League Batmobile while being transported is
believed to have been taken in Los Angeles on the way to the WB Studio
Tour.


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Post #159283
Posted 8/23/2017 7:54:10 PM
Supreme Being

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I placed a copy of this post here for anyone that might be able to
benefit from the technique.

The basic steps to fabricating compound, intersecting, and curving
multi-directional shapes in metal.

Study the part or collective assembly to determine the lines of forces
travel (tensile-compression-elasticity) and mark these on a drawing or
photo-image.

Make a list of those that you can separate by single directional lines of forces.
Flats and plates
Curve and radius

Methods of integrating single direction lines of forces.
Intersecting the flat directional lines of forces for two or more
pieces and welding their contact edges together.
Bending flats around a curve and welding their contact edges together.

Make a list of those that cannot be separate by single directional
lines of forces.
Spherical and semi-spherical
Compound curves and radius

Methods of integrating and shaping multi-directional curving lines of forces.
Metal stretching
Heating the metal and hammering to selectively vary thicknesses

Geometric translation into curves.
Intersecting the flat directional lines of forces for three or more
pieces and welding their contact edges together. Then blending into
multi-directional curves by adding or subtracting metal.
You can also blend the multi-directional curves by using resin, epoxy, Bondo, etc. to smooth out the welded geometric intersection. Many materials can be used to achieve tis result. Large and small parts of varying complexity can be made using this technique.
Post #159297
Posted 8/24/2017 8:01:21 PM
Supreme Being

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How about adding an afterburner cold flame special effect?

Part One

Close to an audience, you might use a cold flame special effect with
just CO2 and a red, orange, or yellow filtered high intensity flood
light inside the afterburner. (Like the hand held search lights with
1,000,000 + candlepower.) The rushing exhaust of cold liquid CO2 as it
changes to a gas and "snow or white translucent and semi-reflective
dry ice solid particles" diffuses the light into a swirling jet of
motion. Deflection tabs can a mounted inside the exhaust nozzle to
refine the shape of the exhaust gas pattern.  Coupled with a recorded
jet exhaust sound effect and it appears very believable.

Best things about the cold flame special effects are no heat or burn
risk to audience, no fire hazard, and no residues left behind like
those from glitter and colored powder injectors.

Note: Touching a cold afterburner nozzle that may be below zero can
cause freeze burns.

Yes, I know you can get glitter and colored powder in bio-degradable
formulations but they can take quite a while to degrade.

Part Two
Why CO2 is the go to gas/solid/liquid for cold flame special effects.

CO2 is normally a gas at room temperature and pressure. It has to be
stored under high pressure to make it a liquid. When you release the
pressure, the gas expands enormously and cools to make a huge white
jet that allows the carbon dioxide gas to expand, cool, and turn into
a mixture of frozen "snow or white translucent and semi-reflective dry
ice particles" and gas.

Basic Science Characteristics of Carbon Dioxide as a Liquid, Gas, or Solid.
Liquid CO2 is produced by compressing and cooling CO2 gas. This liquid
is a clear transparent fluid. Liquid CO2 cannot exist as a liquid at
atmospheric pressure. It must be pressurized above 60.4 psi to remain
as a liquid. At this pressure, Triple Point, CO2 can exist as liquid,
gas and solid. Below this pressure it will flash to a gas and solid.
More specifically, it behaves as a supercritical fluid above its
critical temperature (304.25 K, 31.10 °C, 87.98 °F) and critical
pressure (72.9 atm, 7.39 MPa, 1,071 psi), expanding to fill its
container like a gas but with a density like that of a liquid.
vertigo
Post #159314
Posted 8/26/2017 10:17:41 AM
Supreme Being

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Last Login: Today @ 5:09:38 PM
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I placed a copy of this post here for the benefit anyone that might be
able to use this information in planning and/or building a Bat
Vehicle.

How about adding an afterburner cold flame special effect?

Part Three: Exhaust Nozzle Basics

I received at email asking for information on nozzle designs and how
to prevent freeze up.

The two major problems he referred to are related to allowing the CO2
to exit at high speed, so any snow that forms doesn't block it up and
how to best produce turbulence in the exhaust gas/snow mix.

For many years these were problems with the CO2 fire extinguishers
until they were finally resolved in 1975 by the Brooks Equipment
Company.

Given that their CO2 exhaust nozzle design has not been improved on,
this would appear to be the best place to start when designing a Bat
Vehicle afterburner exhaust cold flame special effect.

If I were building this effect I would start with an intact CO2 fire
extinguisher horn and surround it with three-six small high intensity
lights with a mix of orange, yellow, and red filters.

The mix of colored filters and gas turbulence would give the effect a
pulsing flicker flame effect. One could even set up a pulse flicker
control on the lights themselves. The sophistication and effectiveness
of the afterburner cold flame special effect is only limited by the
user’s imagination.

Carbon dioxide fire extinguishers

Artwork: A typical carbon dioxide fire extinguisher. From US Patent
3,901,322: Fire Extinguisher Discharge Horn by Jack Winston, Brooks
Equipment Co., Inc., August 26, 1975, courtesy of US Patent and
Trademark Office. Photo-image attached.

The CO2 fire extinguisher horn is designed very carefully to stop two
major potential problems: It allows the CO2 to exit at high speed, so
any snow that forms doesn't block it up, and creates uniform gas/snow
turbulence. This typical design from a patent by Brooks Equipment in
the 1970s solves both problems.


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Post #159324
Posted 9/3/2017 8:08:16 PM
Supreme Being

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Last Login: Today @ 5:09:38 PM
Posts: 1,687, Visits: 2,622
Will be using this method to make many of the mounts on my DOJ build.

Worked on designing an upper U-bar double shock mounting bracket and created a wood pattern.
I decided to post the steps of making a custom mount for anyone that may not be familiar with this method.
So,
Step One: Design and make a life-size wooden pattern. vertigo


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Post #159360
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