Forums > Photography Talk > This is how I roll.... DIY power system

Photographer

Kelvin Hammond

Posts: 17397

Billings, Montana, US

On another thread, a few people requested that I divulge the highly secret instructions for how to build my power and transport system for shooting on location.

These are not exactly step by step instructions... but the cart consists of:
https://i76.photobucket.com/albums/j2/velvetindupontthecrackwhore/Packwlight.jpg
-golf cart - form Sports Authority ($59)
http://www.sportsauthority.com/product/ … age=family

-ATV front bag from American Trails (around $129)
http://www.atvbags.net/ProductInfo.aspx … tid=ATVFRT

-300w pure sine wave inverter ($129)
http://www.theinverterstore.com/the-inv … 2s-top-rgb

-12v sealed lead acid battery from Batteries Plus ($50)
http://www.hillersystemsinc.com/zcstore … cts_id=150

-lightweight boom arm (mine was from a used camera shop, but I've seen them at B&H) ($35-70 depending on what you get) You could also pack a lightstand, but I'm using the cart as ballast so it doesn't blow over in the wind.

Now then, there is a small amount of fabrication required to complete this cart, and those with tools could do it at home, though it requires cutting and welding. A machine shop or heating/cooling duct-work shop can help you do it as well.

The first thing I did was strip the golf cart down - all plastic golf related stuff was removed.

Next, there is a bag tray, made out of 1/8 aluminum sheet. This supports the soft American Trails ATV bag. I measured the bottom of the bag, and had a machine shop make what amounted to an over-sized cookie baking pan.
https://i76.photobucket.com/albums/j2/velvetindupontthecrackwhore/bagpan.jpg

At home, I set the ATV bag onto the pan, to see the position of the straps  on the bag, so I could cut away a slot for each of them (6) out of the sides of the pan (for tightening the bag down).  Then I got some strips of 1" aluminum (less then 1/8 thick) from a salvage yard (or you could get them at a hardware store). I used a vise to bend short sections into brackets that I could use to mount the bag pan to the cart. (for support so the bag doesn't roll sideways around the cart). I bolted the bag pan right to the cart (1/4 inch bolts), and then bolted the support straps to the cart frame and to the bag pan with fairly small bolt/nuts. Then it's just a matter of using the straps on the bottom of the ATV bag to attach it to the cart. Subsequently, I have had a tent and awning company redo the straps so I can detach the bag easier from the cart cuz it's easier to put in the trunk dissembled. (1980's Jaguars have sucky-ass trucks...)

Finally, there is the fabrication of the part that attaches the boom arm. I used a piece of 1.5inch flat bar steel (4 inches long), and then bought a large bolt from a hardware store, cut off the hex head and threads, which left me with just the shaft, which I then welded to the steel bar at an angle, so that the shaft pointed upwards and I can slide the boom arm device over it to use it.
https://i76.photobucket.com/albums/j2/velvetindupontthecrackwhore/DSC_4855.jpg

On top of that, you can see that I like to use pocket wizards with mine for movement flexibility.

This cart will hold:
2 AB flash units
battery
inverter
with enough space inside for a camera & lens

and the side pockets (which come with the bag) are big enough to hold an extra D-SLR, two more lenses, and another big bag for wires, grips, pocket wizards, and any other extra crapola you might need.

The only other thing I can think of is that I purposely put the battery in the space closest to the cart handle, cuz they weigh more then anything else, and that helps make pulling the cart easier for balanced weight.

This is a shot I took last Saturday, in full sunlight (12p.m.) with zero shade smile, using only 1 AB1600 w/ their standard reflector.
https://modelmayhm-1.vo.llnwd.net/d1/photos/080518/18/4830a84752b39.jpg

The only problem I can see is that I shot it with a Sony A-100, with a maximum sync speed of 125, which is a bit slow for this kind of motion, so there is some blurring of her feet, and an edge-line around her entire body from the motion (because of ambient light blur). I dunno if it's possible that a sync speed of 250+ would have corrected that... or if it's just an inevitability.

I hope this helps! smile

May 19 08 12:42 pm Link

Photographer

Russell Lewis

Posts: 4278

What a bloody good idea!

May 19 08 12:45 pm Link

Photographer

Enon Orez

Posts: 141

Miami, Florida, US

Fantastic, great work and thanks for taking the time to share.

May 19 08 12:49 pm Link

Photographer

B Browder Photo

Posts: 14635

Charleston, South Carolina, US

All you need is a little microwave and you can have a nice hot burrito when you take a break LOL

May 19 08 12:50 pm Link

Photographer

j3_photo

Posts: 19885

Las Vegas, Nevada, US

Nice...but if there is a Target nearby..same cart for 30 bucks now...also wait til you use another camera with a faster sync...Mine works at 200 and the sky can get darker with my CP filter..sometimes people think...was that shot at sunset?  hahah tongue   Like this:
https://i57.photobucket.com/albums/g213/jeffpartypics/IMG_0017.jpg

May 19 08 12:52 pm Link

Photographer

Kelvin Hammond

Posts: 17397

Billings, Montana, US

Bernie Browder  wrote:
All you need is a little microwave and you can have a nice hot burrito when you take a break LOL

LOL... and big screen TV with a satellite dish...

May 19 08 12:53 pm Link

Photographer

d30john

Posts: 1269

San Diego, California, US

That is so sweet.

May 19 08 12:54 pm Link

Photographer

Kelvin Hammond

Posts: 17397

Billings, Montana, US

j3_photo wrote:
Nice...but if there is a Target nearby..same cart for 30 bucks now...also wait til you use another camera with a faster sync...Mine works at 200 and the sky can get darker with my CP filter..sometimes people think...was that shot at sunset?  hahah tongue   Like this:
https://i57.photobucket.com/albums/g213/jeffpartypics/IMG_0017.jpg

Nice shot! I have a D200 that sync's higher, but alas, I don't like it as well as the Sony, (waits patiently for the Sony flagship later this year).

Then again, I wasn't even planning on any jumping... that ground must really suck to land on, but she wanted to do it. She made 5 similar jumps, before she realized it could probably wreck her dancing career... yikes... that had to hurt.

I was shooting still poses of a dancing group, and some single shots of individuals.
https://i76.photobucket.com/albums/j2/velvetindupontthecrackwhore/2030.jpg

May 19 08 12:57 pm Link

Photographer

j3_photo

Posts: 19885

Las Vegas, Nevada, US

Smedley Whiplash wrote:

Nice shot! I have a D200 that sync's higher, but alas, I don't like it as well as the Sony, (waits patiently for the Sony flagship later this year).

Then again, I wasn't even planning on any jumping... that ground must really suck to land on, but she wanted to do it. She made 5 similar jumps, before she realized it could probably wreck her dancing career... yikes... that had to hurt.

I was shooting still poses of a dancing group, and some single shots of individuals.

Ah nice...mine is with a 5d..fastest sync is 200 tongue  but that sky is dark enough!  Haha.   Now to save up and do the cart thing big_smile

May 19 08 01:01 pm Link

Photographer

Studio Allure

Posts: 2186

Columbus, Ohio, US

Cool idea! But I hope this would be better than the Vagabond. Yours $367 (+s&h) Theirs $299 (+s&h)

May 19 08 01:06 pm Link

Photographer

Brian Baybo

Posts: 1417

Saint Louis, Missouri, US

Ingenious...but can be done cheaper as noted above.  How fast in the recycle time and what number of flashes per charge?

May 19 08 01:09 pm Link

Photographer

Connor Photography

Posts: 8539

Newark, Delaware, US

Smedley Whiplash wrote:
On another thread, a few people requested that I divulge the highly secret instructions for how to build my power and transport system for shooting on location.

I hope this helps! smile

Just wondering how many shots can you do on a fully charged battery???  Thanks.

May 19 08 01:16 pm Link

Photographer

James Waynauskas

Posts: 1133

Kansas City, Missouri, US

How many watts can that handle?

May 19 08 01:18 pm Link

Photographer

DaveDavis

Posts: 21946

Manteca, California, US

Frickin Excellent!!!  Thanks for sharing!

May 19 08 01:20 pm Link

Photographer

OmarImages

Posts: 149

Virginia Beach, Virginia, US

Very neat idea!

I was looking to do something similar but found another alternative. I borrowed a friends 3000 Watt portable generator (which he bought used for around $200). Used it with 3 AB800s without any problems. It's small and light enough to sit in the trunk and surprisingly, not too loud.

May 19 08 01:25 pm Link

Photographer

Ragtop Photography

Posts: 90

Laramie, Wyoming, US

McGyver, eat yer heart out. Delightfully ingenious.

Should I ever be able to afford the lighting equipment ...

Cheers,
Richard

May 19 08 01:46 pm Link

Photographer

4C 41 42

Posts: 11093

Nashville, Tennessee, US

That's very cool.  I'm impressed.

May 19 08 01:50 pm Link

Photographer

The Dave

Posts: 8848

Ann Arbor, Michigan, US

Great Idea!  That got the old gears turning… 

Maybe a nice deep cycle boat battery for longer lasting power.  My old Vagabond’s battery is tired and instead of replacing it with another I may put together a system like this using a larger battery since I won’t need to carry the damn thing anymore.

Thanks for sharing!

May 19 08 01:58 pm Link

Photographer

Nimer

Posts: 29

La Ceiba, Atlántida, Honduras

what a nice idea

if i ever build one,  it will be inspired in yours

thanks for sharing

May 19 08 02:08 pm Link

Photographer

Kelvin Hammond

Posts: 17397

Billings, Montana, US

Connor Photography wrote:

Just wondering how many shots can you do on a fully charged battery???  Thanks.

I dunno... I've never shot more then 200 at one time so far... and that's usually more then enough (even for wedding formals).

The recycle time does slow over time, so initially it's a couple of seconds, but as the battery drains, it moves to 3-4 seconds. My inverter has a built-in beeper (kind of annoying sounding) that let's me know when I can shoot another frame.

Then again, unlike the movies, I don't shoot bu-zing bu-zing bu-zing style with strobe. lol

May 19 08 02:19 pm Link

Photographer

Kelvin Hammond

Posts: 17397

Billings, Montana, US

Dave Proctor wrote:
Great Idea!  That got the old gears turning… 

Maybe a nice deep cycle boat battery for longer lasting power.  My old Vagabond’s battery is tired and instead of replacing it with another I may put together a system like this using a larger battery since I won’t need to carry the damn thing anymore.

Thanks for sharing!

If your gonna shoot with a deep cycle marine battery, you might want to save up for an ATV first. Those things are HEAVY, and I doubt this cart would handle that kind of weight.

Though I am considering an ATV/boom setup... talk about built-in counterweight !!! Now to fabricate some outriggers for that.

i'm thinking Doc Octopus light booms. LOL

https://www.mwctoys.com/images/DocOck_03.jpg

May 19 08 02:27 pm Link

Photographer

Spectral Reflections

Posts: 60

Houston, Texas, US

Great ingenuity!  Thanks for sharing it with us all!

May 19 08 02:39 pm Link

Photographer

The Dave

Posts: 8848

Ann Arbor, Michigan, US

Smedley Whiplash wrote:

If your gonna shoot with a deep cycle marine battery, you might want to save up for an ATV first. Those things are HEAVY, and I doubt this cart would handle that kind of weight.

Hmmm… Going to the thrift store to look around at what they got.
Maybe an older one that is more heavy duty will work?

You have a great idea there and I want to make use of it somehow.

May 19 08 04:16 pm Link

Photographer

MadiouART

Posts: 109

Silver Spring, Maryland, US

Awesome! +100 for creativity.

May 19 08 06:55 pm Link

Photographer

Leo Howard

Posts: 6850

Phoenix, Arizona, US

Connor Photography wrote:
Just wondering how many shots can you do on a fully charged battery???  Thanks.

Smedley Whiplash wrote:
I dunno... I've never shot more then 200 at one time so far... and that's usually more then enough (even for wedding formals).

The recycle time does slow over time, so initially it's a couple of seconds, but as the battery drains, it moves to 3-4 seconds. My inverter has a built-in beeper (kind of annoying sounding) that let's me know when I can shoot another frame.

Then again, unlike the movies, I don't shoot bu-zing bu-zing bu-zing style with strobe. lol

I get about 2200 full power shots with my AB400 out of my setup with 4 - 7.5AH batteries

May 19 08 07:48 pm Link

Photographer

Ed Hanson Photo

Posts: 1129

Spring, Texas, US

Thanks for sharing all that you did! Wonderful job, and very excellent info!

May 19 08 08:37 pm Link

Photographer

Mike Roberts

Posts: 1060

Sheridan, Wyoming, US

What a great idea! Thanks for sharing. I love that location, too. Did an engagement session that included shots there in March.

May 19 08 09:06 pm Link

Photographer

Tim Little Photography

Posts: 11771

Wilmington, Delaware, US

This has got to be the coolest DIY item ever! Someone should build em and market them. It looks like you could also store your camera equipment in the bag and use the boom are as a makeshift tripod, just put a ball head on it.

Really, start selling these things! If you build it we will come!!

May 19 08 10:31 pm Link

Photographer

Patrickth

Posts: 10321

Bellingham, Washington, US

Cool Beans. I am building up one for a Road Trip. Its a  might bigger, but then I am carrying large format, medium format, 2 sets of Norman lights, recflectors, beer, ice, etc. etc.

http://www.pbase.com/patrickth/image/89063712

May 20 08 12:27 am Link

Photographer

Patrickth

Posts: 10321

Bellingham, Washington, US

Bernie Browder  wrote:
All you need is a little microwave and you can have a nice hot burrito when you take a break LOL

I can take a little microwave and send it to his studio system so it can be retouched and sent to whomever before he even gets back to the studio.

May 20 08 12:47 am Link

Photographer

Chris N

Posts: 1401

Vancouver, British Columbia, Canada

That's actually really nice. Good job. That picture is awesome.

May 20 08 02:02 am Link

Photographer

biwa

Posts: 2594

Pinole, California, US

Now I want one ,  the boom arm on the handle of the golf cart that is .

Jun 21 08 12:41 am Link

Photographer

PhotoDancer

Posts: 2483

Dave Proctor wrote:

Hmmm… Going to the thrift store to look around at what they got.
Maybe an older one that is more heavy duty will work?

You have a great idea there and I want to make use of it somehow.

Plus one on the thrift store. Solid old school golf club dollies are everywhere, so are all manner of luggage.

Great project, thanks for sharing!

Jun 21 08 01:25 am Link

Photographer

IBX Pete

Posts: 1347

Rockingham, North Carolina, US

pretty cool... but I don't think I'd try and tackle a project of this size.

Jun 21 08 07:48 am Link

Photographer

S7Imaging

Posts: 69

Cincinnati, Ohio, US

great job,  looks like I have a new project in mind.

Jun 21 08 07:52 am Link

Photographer

Ken Rieves Photography

Posts: 934

Avon Lake, Ohio, US

Using a golf cart for the basis is brilliant. The large wheels means it will roll over rough ground easily. Kudos on the design.

Jun 21 08 09:01 am Link

Photographer

Rick Edwards

Posts: 6185

Wilmington, Delaware, US

Great idea and shots

Jun 21 08 09:05 am Link

Photographer

JM Photographs

Posts: 11

Conway, South Carolina, US

Most Excellent!!

I have been thinking of a way to be mobile and carry all the stuff in one set. You have a brilliant idea!

Thanks for sharing!

Jun 21 08 09:11 am Link

Photographer

PeterWPhoto

Posts: 358

San Diego, California, US

the blurring is very minimal good job!

Jun 21 08 10:05 am Link

Photographer

Sublime Texas

Posts: 1015

Austin, Texas, US

A bookmark worthy thread..thanks!

Jun 21 08 12:34 pm Link