Making a Grow Light Stand

Last night was the quarterly hackathon at work, the day where we get to work on something fun and new until 4am and then demo to the team. Beers were drunk, Thai food was eaten and the sports tournaments were played out (darts and ping pong, or table tennis, if you prefer). It was a great time and although my work wasn't as brilliant as some of my colleagues, I felt accomplished by the time we crawled off for breakfast sometime around 7am.

That was 6 hours ago. I'm still awake. I've been awake since sometime between 7am and 9am yesterday.

I don't know why, really. I ran an errand for the wife this morning and one thing led to another. Before I knew it, I had not only completed the errand (returning some plants and a grow light stand to Growing Hope after Chrissy did some seed starting for them), I had also completed our own grow light stand (a project we purchased the pieces for back when I made the raised bed) and cleaned the cat litter boxes. Luckily for you, I didn't take pictures of the latter task; I'm keeping those precious memories of being watched by a cat while I dug around in his feces (mostly) to myself, but I digress.

Often, when you garden, you have to start some seeds. When the weather is inclement prior to the growing season, as it often is in these parts, you need to start those seeds indoors and, much like this winter in Michigan, there's no Sun indoors (I'm thankful for that, I like my stuff unsinged), so an artificial source of equivalent light is required. That's where the grow light stand comes in.

Unlike the one we had borrowed from Growing Hope, which was a simple wood construction with two A-frames at each end joined by two planks from which the 4' long fluorescent grow lamps were suspended, our grow light stand was to be made out of PVC. As mentioned earlier, we had purchased the pieces for it some time ago, which explains why some of the pieces were wrong. Thankfully, Home Depot awesomely gave me store credit for those incorrect pieces despite a lack of receipt. That's customer service for you.

The parts required for this little project were:

  • 120" of 2" PVC pipe
  • 4x end caps
  • 2x three-way connectors
  • 2x elbow connectors
  • 2x ¼" eye bolts with 4 nuts
  • 2x S hooks
  • 1x shop light
  • 2x fluorescent grow lamp tubes
Barry inspecting the parts and tools
Barry inspecting the parts and tools

In addition, the following tools were used:

  • Safety Gloves and Glasses
  • Drill
  • ¼" drill bit
  • Permanent marker (I used the one Chrissy got from John Mayer's fan club)
  • Hacksaw
  • Pliers
  • Wrench/Spanner (for tightening the nuts)

The assembly was really quite easy and probably would have taken about an hour at most if I hadn't needed to go to Home Depot twice (once for the shop light and again to get the correct size elbows).

First, the PVC pipe was marked (with the John Mayer fan club marker) and cut (with the hacksaw) to the following lengths:

  • 4x 5"
  • 2x 24"
  • 1x 52"

Then, using the connectors and end caps, join them all together to create the stand.

All the pipe fittings and lengths ready for assembly
All the pipe fittings and lengths ready for assembly
End caps fitted to 5" pipe (QA manager, Barry checking craftsmanship on the left)
End caps fitted to 5" pipe (QA manager, Barry checking craftsmanship on the left)End caps fitted to 5" pipe
End caps, 5" lengths and three way connector combined
End caps, 5" lengths and three way connector combined
Light stand legs and cross bar assembled
Light stand legs and cross bar assembled
Completely assembled stand without light fixture
Completely assembled stand without light fixture

See, that was easy, right? No glue, just push it all together. It's a little disappointing that it did not include power tools, but don't worry, because this is where I whipped out my trusty drill after marking where I wanted the eye bolts to go. The shop light fixture hangs from these, so I measured where the chains would go in the shop light and chose eye bolt locations accordingly.

Chains, S hooks, etc. for attaching the light fixture
Chains, S hooks, etc. for attaching the light fixture
Position of eye bolt for one side of light fixture mounting
Position of eye bolt for one side of light fixture mounting

If you attempt this, be sure to wear your safety gear as I did; PVC pipe can be slippy and drills can make easily eye bolt holes in your hand if you're not careful (I recommend having some sleep too).

Safety gear on and ready to go
Safety gear on and ready to go

Once the holes were drilled in the pipe (though a little skewed), I fitted the eye bolts. In order to get a sturdy fixture, I first screwed a nut onto the eye bolt, then pushed the remainder through the pipe and applied a lock nut to the other side (though a regular nut would have done, I think). I then tightened the nuts on each side of the pipe so that the eye bolt was secure.

Eye bolt installed (note the two nuts on either side of the pipe)
Eye bolt installed (note the two nuts on either side of the pipe)
Chains showing S hook before being attached and after
Chains showing S hook before being attached and after

The shop light fixture came with its own chains for suspending it, however, only one end of these chains had a hook, so I carefully crimped S hooks onto the other ends of the chains. I then hooked one end into the corresponding eye bolt and the other into the light fixture and that was job done.

The assembled and working light stand (with QA manager doing final inspection)
The assembled and working light stand (with QA manager doing final inspection)

The height is even adjustable by threading the hook through the eye and hooking back into the chain.

With the assembly complete, I placed the new stand over Chrissy's seedlings and plugged it into our timer ready for her to be surprised when she gets home or reads this (whichever is first).

Chrissy's seedlings enjoying their new light stand
Chrissy's seedlings enjoying their new light stand

Now, I've been awake for far too long so I'm off to play video games and eat snacks before a well-earned nap.

The Connected Vehicle

At the end of last month I attended the Automotive Megatrends 2012 held at The Henry in Dearborn, MI. Though this was a three-day event, I attended the second day only: Connectivity. It was an opportunity for major and minor players in the automotive world to present and discuss their particular visions of the future for passenger cars in a world that is increasingly connected. Particular attention was paid to the Cloud and the continuing trend for infotainment1 to be provided via handheld devices rather than proprietary in-vehicle systems. Safety was a hot topic; in particular driver distraction, where legislation tends to hold vehicle manufacturers liable in the event of an accident even though they may have little or no control over the devices that do the distracting (such as smartphones).

The day was split into four main sessions divided by networking opportunities. Each main session took the form of a panel where four or five panelists would present their views on a particular topic with a moderator overseeing the discussion. Each panel would face a round of questions once all had presented. The topic of the first two sessions was "Connected vehicle outlook — the next 10 years" with the following sessions being "Mobile device integration" and "Software and apps" respectively. Repeatedly during the day, speakers would return to the concept of the Connected Vehicle and what that means for consumers and manufacturers alike, but what do they mean by "The Connected Vehicle"?

A Day in the Life

You wake up on a cold, wintry morning to your smartphone alarm obnoxiously wailing. Via the magic of the Internet, the home management app has checked the local weather and adjusted your home heating to give you an extra bit of toasty warmth. It has also instructed your coffee machine to brew up some Joe.

You flip to the appropriate smartphone screen and start your car. A quick swipe and the in-car temperature is set just right. An alert tells you a service is due and shows you local service locations along with their cost. You select your favourite location and choose an appointment time, then you swap over to your home management app and start the shower. By the time you're out of bed, showered, dressed and have your coffee in hand, the car is thawed out and toasty warm.

As you drive to work by way of your children's daycare, information is delivered to you via your smartphone to your in-car video and audio systems, telling you the weather, headlines, social media updates and to-do list for the day. Your favourite music plays in the background as you choose. Perhaps you even queued up some things from the night before. Voice commands and a simple, radio-like interface give you simple, non-distracting control of your information streams. Everything coordinates and cooperates to ensure that you can concentrate on driving.

As you're finishing off a quick check of your e-mail subject lines an alert flashes up warning you of road construction and traffic delays. The satellite navigation app on your smartphone kicks in, offering alternative routes and travel times to get you on your way. As you begin your detour, the directional microphones and image processing systems in the back seat detect that your kid just woke up and has started punching his sibling. In an attempt to keep the peace, the latest, greatest animated movie immediately starts streaming from Netflix, Hulu or Zune in the headrest display. Meanwhile, your satellite navigation is suggesting spots to safely pull over (as well as one or two doughnut shops you might need for the purchase of "behave yourself" bribes).

Having dropped the kids off at daycare, you pull up at work and apply the parking brake. The in-car systems take the opportunity to remind you of your service appointment. You get out of the car and walk to your office – the car automatically turns off and locks itself as you go. When you get to your desk, you computer has already synced with the Cloud, showing your service appointment on your calendar along with a snapshot of your car diagnostics, should you need to discuss the appointment over the phone.

Reality Check

Though embellished with a few ideas of my own, this scenario is similar to many involving the connected vehicle envisaged by those presenting at the conference. It is all so seductively plausible that it's easy to ignore the reality.  Behind all the enthusiastic rhetoric there are so many unresolved problems and challenges that we're just not ready yet to deliver the dream of the connected vehicle. To get an idea of where we are right now, consider the current vehicle to be akin to video-game consoles just over 10 years ago. Before the current generation of consoles (Playstation 3, XBOX 360, Nintendo Wii), pretty much all you could do with a gaming console was play games, now we can not only play games, but also buy games, rent, buy and stream video, listen to Internet radio stations, watch live television (in HD) and interact with social networks.

The problems for the connected vehicle mostly lie in the gap between the old and the new; passenger cars, with a development cycle of 3-4 years and consumer electronics, with a development cycle of 12-18 months. In a world where a smartphone can be out-of-date within a year but a car is expected to last ten or more, bridging the gap becomes a challenge. Not to mention that the world of the connected car relies on the existence of wireless carriers and services that not only support the demands of consumers but also those of the equipment manufacturers, services like OnStar and its soon to be released API, requiring access to vehicle data and systems in a safe and secure manner.

Controlled Openness

To bridge the development cycle gap, there was a call for the end of proprietary infotainment systems and more controlled, open standards across the passenger car industry. The general view was that proprietary systems have to go in favour of smartphone or other smart device apps, a trend that has already begun. This move would help to reign in the growing concerns surrounding driver distraction by providing an in-vehicle delivery platform that allows apps to interact with the car and its passengers in a safe, secure and reliable manner.

In order to make such a platform appealing to app developers, a set of open standards needs to be adopted by the industry, a set of standards that has not yet been defined but that will provide rules and guidance on how an app interacts with a vehicle and its occupants (as with any new technology discussion of 2012, whispers of HTML5 were everywhere). This idea of controlling app delivery within the vehicle while allowing open standards and app development was dubbed "controlled openness" and clear comparisons were drawn with Apple and the way they govern the app marketplace.

Safe and Secure

Just like the API provided by Apple and any other contemporary development platform, security is extremely important. Security is the basis of trust for consumers and without it the full potential of a technology can never be realised as no one will ever immerse themselves fully. Several presenters gave their thoughts on how security might work but there was a lack of convincing argument that this was a simple problem to solve. In fact most speakers on the matter seemed to be plugging a product while skirting around some of the issues that had been raised by others. Issues that have names like "virus", "hacker" and "theft"; the connected vehicle opens up a cornucopia of problems that must be resolved.

  • How do you stop someone taking control of your vehicle while allowing you to remote start it from your phone?
  • How do you allow an app access to vehicle systems without allowing a bug to cause a vehicle accident?
  • How do you ensure that a person's identification is unpaired from a vehicle when they are no longer in possession of that vehicle due to sale, accident or theft?

Given the need to exchange data to and from the vehicle communications network in order to support telematics and other advanced (perhaps premium) apps, which may include the ability to do things like start, stop or even track the vehicle, I'm sure you can think of many other scenarios that highlight how important it is that the connected vehicle be secure.

The Internet and our increasingly connected world has security all over the place with a plethora of approaches to providing identification, authorization and secure access. However, the effects of a hack or security flaw have so far not had such potentially immediate fatal results as they might in the world of the connected vehicle. A security breach that allows someone to take control of some aspect of your car is entirely unacceptable. This is not a case of making sure it should never happen, but rather a case of could never happen. If nothing else, the experience of driving a car must be safe, both actually and perceptually.

The Road Ahead

So where does that leave us? The automotive industry has rightly identified a need to integrate more closely with the consumer electronics world and move away from the proprietary in-car infotainment systems of old, but the consumer electronics industry is racing along at quite a pace. Although the concept of a smartphone existed prior to its announcement, the launch of the iPhone five years ago accelerated smartphone evolution and it shows no signs of slowing down.  However, until the iPhone of the connected vehicle concept appears and focuses consumer expectations, we will have to accept the Windows Mobile-style missteps along the way2.

While the connected vehicle is still an uncertain concept, it is becoming a reality and it will change the way we interact with our cars. In fact, they may not be our cars at all3. The speakers at the Automotive Megatrends 2012 event had plenty of statistics, ideas and products to illuminate the target that is the connected vehicle. Now all we need to do is find the road that takes us there.


  1. Infotainment is a word used in the automotive industry to refer to the combined provision of information and entertainment services within a vehicle such as radio and satellite navigation 

  2. Not to be confused with Windows Phone 7 (or 7.5), which is awesome. 

  3. Uncertainty exists on how various facets of the connected vehicle will be monetized; from the services and apps to the car itself. Will it be subscription-based, ad-supported or freemium? Will we buy our cars or enter into a service-agreement instead? All of these things and more are yet to be determined.