Using festool to build a (small) supercomputer (Demonstration)

DKurzweil

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Oct 30, 2011
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165
Hi everyone.  Here is my story for the contest.

I was brought onto a team of students from a local college looking to build a distributed node super computer.  My task was to design and build a framework to hold 6 motherboards, a network switch, a power supply, and a few other accessory components.  I was given a size and weight limitation, the unit must fit into a pelican case that is cleared for airline travel, and the entire unit including the case and computer hardware must weigh under 50 pounds.

To build the framework, the obvious choice of tools was my small, but growing, festool collection.  The TS-75 made quick work of the 1/8” aluminum plate that was used for the side walls, motherboard plates, and center support of the framework.  I used the CT-48 with the boom arm connected directly to the TS, and a CT-Midi to collect the stray aluminum chips that escaped from the saw.  The T-18 was used to drill all the holes corresponding to the mounting points of the motherboards, hard drive, power supply, network switch, and those that would later be tapped for the cross bars.  Anywhere that contact with a person or wires was possible, the aluminum needed to be deburred for safety.  This was accomplished with a RO-150 and titan sand paper.  

The results were fantastic.  The unit was welcomed by the team from the college, and was later used to prepare for a competition at Super Computing 12.  The framework I built was used as a test bed to prepare for the competition where the team was given a system with identical hardware housed in a very similar framework.  The team went on to take second place in the competition.

The festool lineup used CT-48, CT-Midi, T-18, TS-75, RO-150, 1400mm Rail, Quick clamps

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Cutting the aluminum sheet down to size

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Showing the CT-48 with the 36 ad 23mm hoses mounted and ready to use with the TS-75

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A better view of the quick clamp (these thing are great)

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Drilling the holes for mounting various components

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Deburring the mounting plates

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The Finished product

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And...

As you can see my systainer collection is growing large enough that I actually built a sysport into my new workbench.

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Unfortunately I had to used a ridgid miter saw to cut the bar stock to size as I don't have a Kapex (yet).  the difference in cut quality between the festool aluminum blades and the Freud blades I used on the Ridgid is amazing.  I don't think I need to tell all of you about the difference in dust collection either.  

Best,

Daniel

 
Nice project -

Did you use angle iron on the corners and screws or rivets to hold the pieces together?

I'm curious about the 'pelican case' size limitation.  Are these meant to go on a temporary location setup?  Just curious about the eventual use of them.

Finally - are these intel-based motherboards that will run a flavor of Linux?

Thanks - nice demonstration -

neil
 
Well there's a thread subject you don't read every day.  [blink] Using Festool to build a supercomputer.  [thumbs up]
 
Glad you like it, Shane.  The team decorated the case with stickers for Linux, BCCD (another operating system), NOAA, NCAR, etc.  I threw a Festool sticker on there to make it official  8).

Daniel
 
neilc said:
Nice project -

Did you use angle iron on the corners and screws or rivets to hold the pieces together?

I'm curious about the 'pelican case' size limitation.  Are these meant to go on a temporary location setup?  Just curious about the eventual use of them.

Finally - are these intel-based motherboards that will run a flavor of Linux?

Thanks - nice demonstration -

neil

In the corners, the cross bars (which are 1/2 by 3/4 inch cross section) Are drilled and tapped for machine screws.  The side panels have corresponding holes than line up.  Then the two pieces were just bolted together. 

This is designed to be a portable distributed node computing platform.  The size and weight limitation is to allow it to travel under standard baggage policies on an airline.  The whole unit costs less than $3000 to allow for many more universities and other organizations to be able to afford it.  Many people do not have access to a high performance computing center, but do need the power for research and other activities. 

Yes, they are Intel based with Intel Atom dual core chips. The team used Ubuntu for the competition.

Thanks for looking

Daniel
 
jlyons said:
Festool, aluminum project. different I like it.

Thanks!!!

I'm still vacuuming up aluminum from the non festool saws.  I can't imagine what the cleanup would have been like without the TS-75

Daniel
 
Here are some renders from the design software I used.  Unfortunately I don't have access to the actual computer at the moment, but these renders can give a better idea of how it goes together for anyone who was interested.

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The 6 plates that the motherboards sit on are designed to be easily removed for quick hardware swaps.  Everything on the system was designed to be modular and quick to repair/replace. 

The mounts that they slide into would have been machined with the CMS, but this project was completed a few months ago.  The CMS wasn't in the US at that point [dead horse]

Daniel
 
Nice project; like others have said, not a subject line we'd expect here and nice to see an aluminum project!

Might have looked classy in a hardwood, though, unless you are relying on the aluminum as part of the heat sink.

I can imagine the TSA when they scan that.  Once I went on a business trip and brought along a crappy laptop from work (you know, the hand-me-down from 5 years ago that even the janitor passed on).  It went through the scanner and some high-school kid with a TSA badge was running the machine, "oh, this laptop has waay too many electronics; can we get a check?".  I don't fly often, but always somebody who is king of their little pile cuz of a badge.  Then there's the story about the ankle weights...
 
PaulMarcel said:
Nice project; like others have said, not a subject line we'd expect here and nice to see an aluminum project!

Might have looked classy in a hardwood, though, unless you are relying on the aluminum as part of the heat sink.

I can imagine the TSA when they scan that.  Once I went on a business trip and brought along a crappy laptop from work (you know, the hand-me-down from 5 years ago that even the janitor passed on).  It went through the scanner and some high-school kid with a TSA badge was running the machine, "oh, this laptop has waay too many electronics; can we get a check?".  I don't fly often, but always somebody who is king of their little pile cuz of a badge.  Then there's the story about the ankle weights...

Yes, the case had several TSA cards inside letting us know it got checked out once we handed it over to the baggage counter. 

I have some great stories about transporting geologic samples, and airport back rooms, but those are for another thread.

Upscale said:
PaulMarcel said:
Might have looked classy in a hardwood, though, unless you are relying on the aluminum as part of the heat sink.

I thought the same thing, but then remembered that he was using a weight restriction of 50 lbs. And using wood, the case structure would have been considerably bigger.

You are correct, the use of aluminum was due in part to the weight limit. The other deciding factor is that the team gave be a set of photos (about 2 of them actually) and said can you build this?  I took the 2 pictures and came up with this design.  The original that this was based off of was made out of aluminum, so this one replicated that.

Daniel
 
Which blade (s) did you use cutting the aluminum?

Seth
 
SRSemenza said:
Which blade (s) did you use cutting the aluminum?

Seth

I used the aluminum specific blade, item number 495383. 

The cuts were unbelievable, they weren't covered in burrs at all.  But, they were actually so crisp and straight that they were razor sharp.  That's why I needed to knock down the edges with the sander.  If I didn't I could see one of the students grabbing the frame the wrong way and slicing his hand wide open  [eek]

Daniel
 
Daniel,

Looks great, very different project from what we are used to seeing here. 

How did you accurately pattern and drill the holes for mounting the motherboards?  That seems like a tricky bit of the project.

Next time you come by the shop bring the rest of the pictures from the build and the contest.  We would love to see them. 

Ken
 
Hey Ken,

Great question.  I used a piece of paper with an outline of the motherboard that I traced, while tracing the outside of the motherboard I also marked where the holes were.  I used a center punch to create a reference point to drill into.  A similar process was used before drilling the cross bars, a center punch created a reference point and then I drilled.

Marking the motherboard plate

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T-18 in action (note the thin filament of aluminum that's forming, the drill puts out plenty of torque to form it!)

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Another great use of the quick clamps.  These things put a great amount of clamping pressure on the bar stock.

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I will definitely bring the pictures by the shop.  I left out the pictures from SC12, but there was some great stuff going on there.  All these computer nerds who didn't party when they were in their 20's and 30's are making up for it now  [thumbs up]

Daniel
 
Good stuff!  I liked the use of aluminum here...something a little different.  Good stuff.  It looks like the aluminum blade made great cuts.  I have not tried it yet and have usually used older stock blades for the limited amount of aluminum I have had to cut, but it looks like your TS75 did a nice job.  Cool post.

Scot
 
ScotF said:
Good stuff!  I liked the use of aluminum here...something a little different.  Good stuff.  It looks like the aluminum blade made great cuts.  I have not tried it yet and have usually used older stock blades for the limited amount of aluminum I have had to cut, but it looks like your TS75 did a nice job.  Cool post.

Scot

As I said earlier, the aluminum blade did a great job.  If I were you I would invest in one just to have for cuts here and there.  Even if you only make a couple cuts a year it is well worth it.  I'm sure the quality will be many times above that of using an older stock blade.

Thanks for looking.

Daniel
 
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