CADfiles uploaded to mediafire

Hey there!
I've spent a little more time on the CAD-files, and now I've finally uploaded them to mediafire!
Download it at the usual spot: http://www.mediafire.com/folder/378b85f40worx/Escapements
It's the compressed folder CLOCK_MA_FinalModel.zip.
I didn't draw the householditems (my alarm clock uses a glass jarr, some marbles, string & PVCpipe) but you should be able to replicate a working escapement from which you can build your own clock.
Since today is my last re-exam, I'll have an update with my working alarm clock soon (< 1 week hopefully) :)

after the exam

My docent (Jurgen Ceuppens) said the engineering part was all right: he liked prototype 2 and saw that the overall design of the final prototype (only presented as a CAD-model because of a power outage-see earlier post) was good. The CAD-files however weren't as they should be - and I have to admit he was right.
So I've decided to work the CAD-files a little more before posting the files on mediafire. I will also include .iges en .stl files, so any CAD-program should be able to load the parts.
Hope you'll enjoy them - after some waiting (working on my sketching skills now for my re-exam Thursday afternoon)!

Problem making final prototype

Since BudaLab was closed yesterday, and when I was there today they told me the whole island has a power outage, my final prototype will only be a CAD-file for the examination this afternoon :(.
Too bad, but I'm sure I'll make it anyway - probably after my sketching exam which is next week.
I'll keep you posted ;)

notes on prototype 2

I figured I should probably write the most important observations down, so I have sth to refer to on the presentation of my pendulum alarm clock.

Observation 1: The escapement runs a little fast; using a longer pendulum this can be adjusted.

Observation 2: The distance between the rotation axis of the wheel and the pendulum may vary over 3mm: in my test (for which prototype 2 was built) too great a distance (2mm more than in prototype 1) showed to make it run a little faster and a bit more irregular. 2mm deviation in the other direction (closer together) would inhibit the movement of the escapement. 1mm more yielded one turn more in 30s, (37/30s instead of 36/30s).

Observation 3: The minimum weight to make this configuration work properly consisted of 18 M6 nuts on a duct-tape-pulley of 9mm diameter. I used 20 because different sources from the info round said it was better to be on the safe side with the drive weight.

Observation 4: It is important always to have the pendulum and the wheel in a vertical plane. When one is misaligned on it's axis or the encasement is incorrectly placed malfunctions occur. I guess that's why a lot of pendulum clocks are wall clocks; they can easily be suspended from a nail in the wall.

short movie working prototype 2

Hello!
Today I've assembled the parts I (laser)cut out earlier in BudaLab, and they form a working prototype :)
I've uploaded a short movie of it to the mediafirefolder, but here a direct link: http://www.mediafire.com/download/8s9w4hhxlbx8wb1/werkend_testprototype2.wmv

The final prototype (different encasement, mass outside the encasement (used to set the time before the 'alarm' goes off),  a simple alarm system with marbles based on primitive hunting traps) will be assembled tomorrow, before my examination of 'Functioneel bematen'. The CAD-files, lasercutfiles and 2D-drawings will be uploaded tomorrow too.

Now it's time to work & study some more ;)

Break from the clock, studying

Just wanted to say there hasn't been an update because I'm studying for a re-exam (Functioneel Bematen).
Also, I've received an e-mail from my docent: the deadline is 23rd of August, so there's a lot of work to be done (same day as the re-exam I'm studying now)!
Hopefully, I'll have a working alarm clock to present! =)

Nieuwe planning en verder uitwerken

Ondanks vele mails kon ik totnogtoe geen feedback krijgen van de docent.
Zelf heb ik zin om een soort mechanische alarmklok te maken, waarbij je instelt over hoeveel tijd de wekker gaat. Ik moet vooral de looptijd i.f.v. de dimensies nog weten opdat ik een beter idee zou hebben over hoe haalbaar een slaaptijdklok zou zijn. Een ovenklok/keukenwekker zou ik ook cool (en handig) vinden.

Voorbeelden met knikkers vond ik vrij tof, dus zou ik adhv de massa (E-input) de wekker instellen en op een bepaald punt met die (rest)energie enkele knikkers als wekker laten dienen.

Gezien ik de voorbije dagen wat tijd heb verloren (slecht begonnen met het genereren van de CAD-files, op basis van de oorspronkelijke lasercutfiles i.p.v. zelf - nu daaraan begonnen) wordt het nog hard doorwerken (al heb ik nog geen indiendatum gekregen), maar de goesting is er nog.