What is OSE doing in New York City?

What a whirlwind trip. This Friday I drove to NYC with my awesome family and stayed with Andrew and Chrissy (who also rock!). I helped represent OSE at For Humankind. It was awesome! I got to meet Aaron who will be living at Factor e Farm soon.

The event was a sort of exposition of human centered technologies. There were people turning soccer balls into little self charging batteries, others could turn any surface into a touch screen, yet others were working on turning algae into a high production bio fuel.

And of course, there was OSE. And my PowerCube! I got to show it off to others and explain the challenges of building it. I got to explain how the work of OSE made them inherently more valuable because it allows them to start a business that was previously out of their reach. I got to learn about their interest and goals. It was incredible how many intelligent, curious and engaged people came by to see what we were about.

I'm also happy to report that this kicked off some collaboration between Graham and myself. Graham will be building MicroTrac at FeF and we've been discussing goals and some design aspects. I'm excited to see what we come up with.

I've been invited to FeF, but given my current circumstances, I'm doubtful it would be practical (despite my real desire to make it happen). So for now, I'll work on getting my life in Detroit up and running. Then I'll finish my PowerCube and see what is next.

Meeting OSE in person in New York City?

I've recently been in touch with Aaron of OSE. He has invited me to visit NYC to show off progress on my PowerCube 4. I'm hoping to make it work. I've got a query out to some friends-- I'm hoping they can host me.

Here is the most recent photos of the Power Cube with captions.

Top View of Power Cube

Notice the minimal clearance between the tank and the engine here.

Gas Line connecting tank to Engine.

Gas Tank was a gift. Cheap, but effective. I will mount it more permanently when time permits.

Fitting for Engine Electrical

The Engine in profile

OSE is Growing!

There's been a lot of exciting stuff coming from OSE. They've really begun to scale and it's great to see the Iron Worker and CnC torch table running. Here is a video they produced showing off some of their progress:

As for me, I'm in the process of learning a new job and buying a house. That's got me pretty tied up. I'm hoping to get back into production before my new baby comes along. I still hope to finish the Power Cube before Christmas.

Details and Diagrams of MicroFork

As far as I can tell there are only a few major modules to MiroFork. Here they are:

• Drive Module - Applies force to the ground so MicroFork can move.
• Tool Fixture - securely attaches a tool to MicroFork and moves that tool relative to MicroFork.
• Power Module - Feeds other components with energy. This is a PowerCube.
• Control Module - Allows the behavior of other components to be controlled by the driver.
• Tool Module - One of many possible machines that attach to MicroFork (eg, snowplow, tiller, etc.)
• Passenger Module (optional) - Allows the Driver to ride on MicroFork.

In the spirit of hypermodularity, each of these modules should define interfaces such that they can easily be swapped out. This modularity is somewhat expensive. It requires additional materials and manufacturing as compared to an integrated tool. For long lived, versatile tools it's worth it.

Here are my vague ideas on these components and interfaces. I've already posted a little on the drive unit. I now consider those thoughts largely irrelevant. The drive unit can be implemented in lots of ways depending on the requirements. I'm reluctant to make MicroFork a skid steer because I want it to be useful on a suburban lawn (so no skid marks). I'm leaning toward a lawn tractor type design-- 4 wheels, two steerable, two powered by a differential transmission which is in turn powered by a hydraulic motor. This is complex, but would be manageable with salvaged parts. This isn't a good long term OSE solution but would work for me personally in the short run.

The Tool Fixture is the core of MicroFork. All other components attach to it. I'm like my forklift style manipulator because I imagine it to be simple to build and sufficiently flexible for MicroFork type work.

Time for the pictures! To the left is a the forklift based tool fixture. The green plate would support multiple attachment schemes. The two important ones are Bobcat quick disconnect, and 3 point hitch (like the one on my Dad's John Deer tractor-- probably class 2). A big feature of this design is ease of dis-assembly. The pins holding together the pivots can be removed to collapse the whole thing. Having multiple brown members of different lengths, allows the angle of the green plate relative to the ground to be changed. 

Next is the interface design between the Drive Module and the Tool Fixture. This is a simple 'drop and pin' arrangement. It doesn't allow for any movement, but is very general and should be (I'm guessing here) very strong. So long as the fixture and the drive module have correctly spaced joiners, it won't matter how they do their job (tracks, or skid, or articulated steering).

I still don't know how the other modules fit in. There may be problems with balance, strength, and alignment. I don't even know how a real forklift operates (I'm hoping to take a long look at one sometime soon.)

Ideally, if the interfaces were well defined/designed the different components of MicroFork could be implemented in parallel-- good job team WikiSpeed.

I was contacted by Graham who will be making a MicroFork this summer. I'm hoping to be able to help with the design if not the construction.

Alternative MicroTrac Design-- MicroFork

I've spent the last week between jobs and it has done wonders for my creativity-- I've got a lot more brain energy to devote to my flights of fancy. As such, I've got what I consider to be some major improvements to my MicroTrac design. I'm calling my proposal MicroFork. My next couple posts will be about it.

I spent a lot of time thinking about how to put arms onto MicroTrac so that it could lift an earth pulverizer up to the height of a CEB Press hopper. I've recently realized that this probably isn't a great requirement. First off, it's a pretty specialized task. LifeTrac seens like the right tool for that anyway. Besides that, it's quite different from other kinds of requirements that I can see MicroTrac being useful for. Goals like snow blowing/plowing, lawn mowing, tilling, posthole digging and the like are all done at relatively low heights

So instead, why not take inspiration from a different lifting requirement that MicroTrac should be able to handle. It should be able to load a pallet into a truck like a fork lift would. This has a much lower elevation requirement than loading a CEB, but is a general kind of utility MicroTrac should provide. I propose that this is the most height intensive requirement currently on the docket. So, why not take inspiration from the forklift which does the job very well. What would we end up with then? We'd get MicroFork.

(I'll post more thoughts soon.)

Where have you been? Why haven't you been posting?

My progress has been glacial lately. I have some pretty good reasons though...

1) My wife is Pregnant! We're expecting a new family member in late September.
2) Our family is primarily located in Michigan so we will be moving early June.
3) I just finalized the adoption of my son Frankie!
4) I've found a new job. I'll be working for Rolled Alloys. The job search was time consuming.

So, I'm not expecting to make much progress in the next few months. I will write occasionally with thoughts and other occurrences.

Interviewed by the Associated Press!

I got a call yesterday by a reporter for the Associated Press. She was doing investigation for an article that she might write about OSE. She asked a bunch of interesting questions and I enjoyed the conversation. I'm hoping the article gets written. I'll certainly link to it if it does.