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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 14 Jan 2011 (Friday) 17:09
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The VagaBase ...

 
tetrode
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Jan 14, 2011 17:09 |  #1

Warning: Vagabond Mini Lithium content!

One of the unfortunate design choices we see in the new Vagabond Mini Lithium is the placement of the battery cartridge release tab on the bottom of the VML:

IMAGE: http://farm6.static.flickr.com/5081/5355712336_86b233a0eb_o.jpg

It's easy to visualize that when the VML is not mounted on a lightstand but placed on a floor standing upright, inserting a power plug into the unit's sockets will exert pressure on the exposed release tab. Slide the VML along a floor and the tab (which is plastic) may wear or break.

It is also apparent that the tab reduces VML stability and causes the unit to lean backwards when stood upright:

IMAGE: http://farm6.static.flickr.com/5245/5355095885_a9efee0c85_o.jpg

While not quite like a miniature Leaning Tower of Pisa, the VML standing upright is prone to flopping over with a slight pull on an attached power cord.

Also, notice the two ventilation grills on the bottom of the unit. When stood upright on the ground the slots are vulnerable to incursion of moisture (or water if you aren't careful where you set it down) or debris.

To address these issues (which ARE issues for me because I know my VML will not always be mounted to a light stand and I will not be laying the unit on its side) I made what I'm calling a "VagaBase" (which gets a second coat of paint tomorrow):

IMAGE: http://farm6.static.flickr.com/5004/5355712188_ed9880304d_o.jpg

The VML fits snuggly in the central cutout area. The hole in the bottom accommodates the battery release tab. The base allows the VML to be used in a fully upright position that is very stable and resistant to slipping (due to the rubber feet). It also raises the VML off the ground eliminating the risk of moisture or foreign matter entering the inverter module through the bottom ventilation slots:

IMAGE: http://farm6.static.flickr.com/5006/5355712154_40b85e6d5a_o.jpg

I like my VML. Now I like it a bit more.

Dave F.



  
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Prototype
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Jan 14, 2011 17:18 |  #2

Nice. I'll mostly like end up mounting a VML to the lightstand almost always since it doubles as a sandbag LOL




  
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KurtGoss
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Jan 14, 2011 17:32 |  #3
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Dave, I love all the DIY stuff you do... and I think your new "base" is a god idea... BUT -- I don't see why it would not be easier to just have a better way to attach the battery to the stand. I am not sure why you would want the battery on the ground. If there was a simple clip type attachment -- it just seems more simple to me, as well as I always want any batteries off the ground in case of moisture.




  
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tetrode
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Jan 14, 2011 18:08 |  #4

KurtGoss wrote in post #11642242 (external link)
.. BUT -- I don't see why it would not be easier to just have a better way to attach the battery to the stand. I am not sure why you would want the battery on the ground. ...

First of all, Kurt, you're assuming that the VML is being used to power a monolight and that there is a stand to attach it to. This may not be the case. Too, the VML clamp will not fit around the 35mm diameter first riser of many Avenger stands; the stands I most frequently use.

Then there's the situation where the VML is powering multiple lights. Look at the VML in the setup photo from David (dmward) in this post:

https://photography-on-the.net …p?p=11618292&po​stcount=52

Sometimes it's just quicker and easier to sit the battery on the floor and work around it. However, I would agree that when a VML is powering a single monolight mounted on a VML clamp-friendly lightstand, that would be the way to go.

Dave F.




  
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dmward
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Jan 14, 2011 18:16 |  #5

Neat Dave.
I'm not nearly the DIY guy you are, and wouldn't be nearly as good at it if I tried.
I was thinking about getting some of these stick on rubber feet like the ones on your Vagabase and just stick them on the VML. :-)

Now even doing that may be IP infringement. :-)


David | Sharing my Insights, Knowledge & Experience (external link) | dmwfotos website (external link)

  
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Mark ­ Booth
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Jan 14, 2011 19:08 |  #6

Um... doesn't the VagaBase block and/or "enclose" the ventilation slots? It would seem important to keep the ventilation slots unobstructed.

Am I missing something in the design?

Mark


"If a day goes by without my doing something related to photography, it's as though I've neglected something essential to my existence, as though I had forgotten to wake up."
-- Richard Avedon

  
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tetrode
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Jan 14, 2011 19:23 |  #7

Mark Booth wrote in post #11642702 (external link)
Um... doesn't the VagaBase block and/or "enclose" the ventilation slots? It would seem important to keep the ventilation slots unobstructed.

Am I missing something in the design?

Mark

No, you're not missing a thing. The ventilation holes haven't been drilled yet. At the end of my VML stress test the other day that saw the pack produce over 400 pops at 15-second intervals, the inverter case was barely warm (88-degrees F measured with an IR thermometer). I'm not worried about thermal problems.

Dave F.




  
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photopat
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Jan 14, 2011 19:37 |  #8

KurtGoss wrote in post #11642242 (external link)
I don't see why it would not be easier to just have a better way to attach the battery to the stand. I am not sure why you would want the battery on the ground.

When I'm charging them, I would prefer to keep them vertically as it take less space on the shelf.


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dmward
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Jan 14, 2011 19:47 |  #9

I was thinking I'd just break the tab off and use duct tape to hold the battery in. More professional looking that way. :-)

And before someone yells at me let me tell you a true story. Back in the 70s I was at Helix picking up an Arriflex movie camera for a job. Got talking to the salesman who told me that an network cameraman had picked up a brand new Arri sound camera (about $20k then) -- unboxed it right on the counter and took out some emory paper and started on the corners of the case so the alum/brass or whatever would show through the crackle paint. The salesman asked him what he was doing. His reply, "Man, if I show up at a job without wear on my camera everyone will think I'm a neophyte."

So, duct tape holding stuff together has to be a pro move. :-)


David | Sharing my Insights, Knowledge & Experience (external link) | dmwfotos website (external link)

  
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tetrode
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Jan 14, 2011 20:08 |  #10

dmward wrote in post #11642894 (external link)
... told me that an network cameraman had picked up a brand new Arri sound camera (about $20k then) -- unboxed it right on the counter and took out some emory paper and started on the corners of the case so the alum/brass or whatever would show through the crackle paint... :-)

David, as someone who treats his equipment like Faberge eggs, your story is going to have me waking up screaming in the middle of the night. Oh, the horror!

Dave F.




  
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Mark ­ Booth
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Jan 14, 2011 20:30 |  #11

dmward wrote in post #11642894 (external link)
I was thinking I'd just break the tab off and use duct tape to hold the battery in. More professional looking that way. :-)

:lol:

Mark


"If a day goes by without my doing something related to photography, it's as though I've neglected something essential to my existence, as though I had forgotten to wake up."
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dmward
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Jan 14, 2011 21:39 |  #12

Dave,
Over the past 40 years my gear has gone through a lot but never that. :-)
I even put a seat belt on the arri while hanging out of a helicopter, just to make sure it won't fall if we hit turbulance. :-)

Mark, in the airplane business they call it hundred mile an hour tape. So its even good for fast moving photogs. :-)


David | Sharing my Insights, Knowledge & Experience (external link) | dmwfotos website (external link)

  
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