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suarezvictor
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Analog Discovert
suarezvictor   9/6/2013 9:52:03 AM
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for $219 You can get a 14-bit 100msps and 5mhz bandwidth USB scope, with a 100 mhz logic analyzer, or $99 if you're an student

the scope software is very good

www.digilentinc.com/Products/Detail.cfm?Prod=ANALOG-DISCOVERY

 

Aeroengineer
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Re: But what about...? -- Buy quality tools, not a set
Aeroengineer   9/6/2013 9:41:37 AM
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I was just thinking about your Allen Wrenches comment.  My favorite type are the ones that are case hardened with an annealed center.  The reason being is that when you are working on something that has been in there for 30+ years, it is better for the wrench to be able to twist, than it is to round out the internal wrenching features.  With the case hardened surface, the wrench flats will stay intact and will not strip.  These types of wrenches are viewed as junk by many, but when you are working on an aircraft engine that is worth $30K, they are a cheap loss compared to potentially damaging the engine casing.

 

I also use tackle boxes for my modeling supplies.  I have one that fits my Dremel tools and their bits, my airbrush, paints, and misc supplies all in one box.  Once again, it gets back to having a space for your tools.

 

I need to get something a little better for my lathes.  I am thinking about getting another bench like the one you see in the picture to go on the other side of this one.

Aeroengineer
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Re: Total price tag?
Aeroengineer   9/6/2013 9:33:51 AM
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Karen,

 

So far, I have about $700 into what you see in that picture.  I also have about $150 into a small portable lab that I have to do stuff at work.  This does not include the cost of the computer.  For my portable lab, I would love to add a new convertible laptop similar to the Intel Haswell Reference design, but up until now, it seems that the computer manufacturers are still coming out with their poor concepts instead of something with the advances that Intel showed off.  I will wait.

 

As to the competition, I would love to enter, though it seems that it was indicated that Bloggers for EETimes would not be allowed to enter.  I am not sure that I would have many good stories for electronics, but I do have some good mechanical ones. Like tearing into the stock carburetors that were at my grandpas auto repair shop when I was about 6, and then not knowing how to put them back together again.  Modifying an airplane so that it replaced a piston engine with a turbine engine, and then clipping 12' off the 35' wingspan.  Then rebuilding it after a bug clogged the fuel system and it made an off airport landing. 

 

Would sticking tweezers in a light socket when I was about 3 or 4 count?  I was curious and it ended in the teardown of the socket afterwards.  I mean, why make tweezers look so much like a plug anyways?!?

Aeroengineer
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Re: Renting space instead?
Aeroengineer   9/6/2013 9:20:55 AM
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No, I have not actually looked at that as a viable option for me, though it may very well be a good option for others.  There are two reasons it was not a good fit for my plans.  The first is that the "local" maker group is about 45 minutes away.  Considering I usually have only about 2-3 hours a day after work that I am home and awake, this would not be practical as I would spend most of my free time traveling. The other advantage of it being in the house is that I get to be with my wife and son as I am working on things.  This is an undervalued bonus that many do not consider.

 

The other reason is that because I tend to be slower than I like with my projects, it would take quite some time for me to build a project, and get use of such a lease.  Once I look at the money that would have spent for that lease, I could have then bought the tools for my own workshop.  At that point in time, I would rather purchase the tools.

 

This is just what works for me.  I think, though, for a group that has little experience working with certain types of tooling, and short timelines, that such a lease might be good for them as it would provide both mentorship and tooling access as well as potential quick time to market with their device.

 

 

kfield
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Total price tag?
kfield   9/6/2013 9:16:13 AM
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What was the total price tag to outfit your lab?  And please note that we are currently running Frankensteins Fix, a competition inviting engineers to write about things they have "brought back from the dead" either by repair or redesign and giving away a $3500 Tek scope!  Consider entering, think what an awesome addition that would be to your lab!! (And Im betting your wife would really approve!)

kfield
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Renting space instead?
kfield   9/6/2013 9:09:54 AM
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Did you evaluate renting space at one of those companies that provides complete prototyping equipment and tools? wondering what the pros and cons are.

Aeroengineer
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Re: Cool stuff
Aeroengineer   9/6/2013 7:41:52 AM
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It is a simple lab, but it has served me well.

Aeroengineer
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Re: Multimeter!
Aeroengineer   9/6/2013 7:41:21 AM
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Also good thoughts about mixed signal scopes.  I guess that would hold true unless the scope connected to an external monitor/computer for displays.  You would still be held back by the potential lack of features in the software. 

Aeroengineer
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Re: Multimeter!
Aeroengineer   9/6/2013 7:39:30 AM
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Dang you got me again!  I need to post another blog, "The Tools I Already Had from Building Full Scale Airplanes/Model Submarines/Working on Cars".  I might need to work on the title though. 

 

I had a Harbor Freight cheapie, but then I put together a tool set to be able to do some playing during lunchtime here at work.  Max, perhaps we can pull that one over from MCC.  For that kit, I purchased a Meterman PM55.  I really like it.  It is small, but has a lot of features.  You can actually see it there in the upper middle portion of the picture sitting on the electronics workstation.  It is red and black.

ChristophZ
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Multimeter!
ChristophZ   9/6/2013 3:10:35 AM
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As you wrote correctly, analysing tools are essential (Besides quality basic tools like soldering iron, pliers and a well lit workplace).

But first I would suggest to buy a digital multi meter (DMM), if you can afford one that also measures capacitance (helps a lot to repair old stuff).
It's always the first thing at hand, check power supplies, check current consumption, check diodes/transistors if they are still ok etc.

 

For the logic analyser (LA) I don't recomend the mixed signal options build into scopes. Often the software lacks standard features going a little beyond the basics and mainly because you really like to have a big screen to analyse 16+ signals.

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