.:madworm:.'s photos

So this is it. After I wasn't successful with the hole punch, I thought this would solve my problems for good. It cuts circles, but the forces are so big, that the centering ping moves around in the plastic foil. Therefore it cuts nice 'wanna be' circles, or egg shaped things. The edges are almost perfect though. EPIC FAILURE V2.0 I need to find a small company/workshop with some sort of hydraulic press. "punch, lift and slide" ;-)

So this is it. After I wasn't successful with the hole punch, I thought this would solve my problems for good. It cuts circles, but the forces are so big, that the centering ping moves around in the plastic foil. Therefore it cuts nice 'wanna be' circles, or egg shaped things. The edges are almost perfect though. EPIC FAILURE V2.0 I need to find a small company/workshop with some sort of hydraulic press. "punch, lift and slide" ;-)

So this is it. After I wasn't successful with the hole punch, I thought this would solve my problems for good. It cuts circles, but the forces are so big, that the centering ping moves around in the plastic foil. Therefore it cuts nice 'wanna be' circles, or egg shaped things. The edges are almost perfect though. EPIC FAILURE V2.0 I need to find a small company/workshop with some sort of hydraulic press. "punch, lift and slide" ;-)

New buildings for future students... Lucky bastards.

New buildings for future students... Lucky bastards.

It's close to midnight and something evil's lurking in the dark Under the moonlight, you see a sight that almost stops your heart You try to scream but terror takes the sound before you make it You start to freeze as horror looks you right between the eyes You're paralyzed

I was trying to build a contraption that would allow me to punch circles into the white plastic foil of my Ikea SAMTID lamp. Unfortunately the wood is too soft, the punch is too dull and the plastic too tough. This was milled in 2 steps and had to flipped over.

I was trying to build a contraption that would allow me to punch circles into the white plastic foil of my Ikea SAMTID lamp. Unfortunately the wood is too soft, the punch is too dull and the plastic too tough. The bit you see is also not long enough. I had to turn the piece over.

I was trying to build a contraption that would allow me to punch circles into the white plastic foil of my Ikea SAMTID lamp. Unfortunately the wood is too soft, the punch is too dull and the plastic too tough.

I was trying to build a contraption that would allow me to punch circles into the white plastic foil of my Ikea SAMTID lamp. Unfortunately the wood is too soft, the punch is too dull and the plastic too tough.

I was trying to build a contraption that would allow me to punch circles into the white plastic foil of my Ikea SAMTID lamp. Unfortunately the wood is too soft, the punch is too dull and the plastic too tough. Epic failure. I need something that can cut perfectly round holes that look good. Something like a compass with a cutter instead of the pencil tip.

I was trying to build a contraption that would allow me to punch circles into the white plastic foil of my Ikea SAMTID lamp. Unfortunately the wood is too soft, the punch is too dull and the plastic too tough. Epic failure. I need something that can cut perfectly round holes that look good. Something like a compass with a cutter instead of the pencil tip. Or a water jet, laser cutter... nobody has that in these parts.

The biggest hollow punch in there is what I need, but it is too dull.

The smallest hollow punch is quite sharp.

The biggest hollow punch is quite dull.

This hopefully illustrates a bit where the 200Vpp were coming from, that made my fingers hurt. Only because of the bad GND connector... The symbols I've used may not be 100% correct ;-) Besides I don't care what kind of core the transformer has when I get zapped.

Voltage between a USB GND line and the 'GND' of a floating power supply. There is a 10:1 probe, so the voltage is 200Vpp. It hurts to touch it. This popped up because of a BAD RCA plug on the jyetech's probe wire while trying to measure a PWM signal on a device connected to my PC via USB. The probe never connects properly and no common ground was there. So the voltage chose my hand to equalize. Ouch. This is pretty annoying and I could have wrecked my controller with that ;-( I've cut off the RCA plug and tossed it into the trash to prevent further problems. I need a new ones, good ones, better ones.

According to a spec sheet the ID of this should be 8.0mm and then expand a bit when pushed onto the female part. The female plug should have an OD of 8.3mm. This one has an ID of 8.58mm which makes it useless ! Please note that a new hardware version of this device has been released, therefore these images will most likely not apply to it.