Suggestions for electromechanical project?

I've just joined an evening course to sharpen my mechanical engineering
skill on the lathe, miller, drill etc. Anyone got some ideas as to what sort
of proJect I could go for, preferably with drawing already available?
I was thinking of an inertial gyroscope, synchronous/induction/stepper
motor, transistor grader etc.
Regards
j

 

I've always wanted to make a transistor amplifier. It would be a box
with a slot on top and a door below. You drop a small transistor in the top and
sometime later, a larger, amplified, transistor drops out the bottom. It would
be more impressive with lights and sound effects.

Jim

 

Mechanical engineers make drawings. Machinists read them and cut
metal.

John

 

jmc threw some tea leaves on the floor

How about a 3 axis nc pc driller as this is a electronics group ?

 

I second that sugestion!

Cheers

 

Martin Riddle threw some tea leaves on the floor

It would be a nice project, and could even have a SMD placement cabability ?

^^ pcb

 

I've just joined an evening course to sharpen my mechanical engineering

How about a jet engine? Or a metal lathe? Just how much time do you have,
anyway?

But I really like the idea of making your own really good electric motor.
Otherwise, almost any kind of robotic actuator is going to be good hunting
ground for mechanical fabrication challenges.

- Owen -

 

If by 'really good' you mean 'relatively efficient,' he's going to have a
hard time building his own electric motor without some pretty sophisticated
machining abilities too, no?

 

An attachable inkjet printhead so that it could also be used to print a
PCB pattern directly onto the copper laminate as well?

Rgds,
Chris.

 

Hi

I'll suggest a different approach. How bout asking yourself one
question: if practical issues were no worry, what would I really like
to do with my life? Give it plenty of time, its one of the most
important questions you'll ever ask.

Only when you've identified what you want can you start to say, 'hey,
how bout doing it like this?'


Regards, NT

 

CH threw some tea leaves on the floor

A good idea, but would the ink actually stick to the copper surface
without a lot of pre preparation, and without running ?

Or would it be full of tiny holes, leading to pinholes in the copper?

 

Yes, questions that also crossed my mind... the only thing close to this
that I've experienced is ink-jet onto normal overhead transparency (not
a special inklet variety) which initially *looks* fine but never seems
to dry entirely - so it smudges even after some days.

It was JOTTOMH anyway ;-)

Chris.

 

If you're thinking of etch resist, the fact the ink is water-soluble
(on ordinary inkjet printers) may put a bit of a damper on things too.

Best regards,
Spehro Pefhany

 

Yes, discussed this with colleagues also...

That particular property is a pet hate even for normal paper prints -
especially if you need to use your printed documents (forms etc) out in
the field >:-(

Chris.

 

Hi

IIRC there are waterproof inkjet inks, tho most are watery. There are
2 different types of head in use, resistive and piezo. Resistive heads
boil the ink, so use waterbased. Theyre the cheaper popular option.
Piezo heads squirt the ink by squeezing, so can use non-water based
inks, within limits. The limit is that the head mustnt clog from fast
drying ink.

Regards, NT

 

A vibrating gyo can be made using a vibrating ring or wine glass shape
use magnetic activation and pickoff.