Trabant posted:

edit: also, I badly need some better probes and leads for my bare-bones multimeter and power supply, goddamn this is PITA to work with.

A Proper Uppercut posted:

Well you guys were right about the valve configuration, I should've looked at it closer after it was mentioned. There is a third port on the push button that exhausts after you let go. So it's a manually actuated 3/2 valve I think.

On the other hand I was able to make the valve I bought actuate using the PLC so I'm on the right track there. It just gets stuck open after it cycles.

On that note, I think this is what I should be looking for in the correct valve? The PLC is outputting 120VAC, not DC like I said earlier.

https://www.automationdirect.com/adc/shopping/catalog/pneumatic_components/directional_control_solenoid_valves/solenoid_valves/avs-3312-120a

Stack Machine posted:

Those power values are also only given as typical so they don't constitute a guarantee. Meanwhile, just down the datasheet is a max THD spec at 1W into a 4 ohm load of only 0.06%. That means that with a fresh part in that configuration, if you measure more THD than that you can call up a sales rep, return it, and make some engineers sweat.

I really like openscad for the things I've used it for (laser cut cases, a giant novelty solderless breadboard for a friend's bachelor party, post-processing .stl files to add features for 3D-printing, a panel with a vent, one switch, and one power connector) , but I'll be the first to admit this all rings very true, and if I were laser cutting instrument panels I don't think it'd be the first thing I'd try.

The general cantankerousness is why I compared it to LaTeX. It's the simplest viable tool for its niche. I imagine a lot of people would say it's far too simple to be viable for much of anything. It models everything as polygonal meshes only and it's easy to get it to generate way too many polygons and crash or lock up. Unless you tell it otherwise it also just generates the same regular polygon to approximate every circle, so tiny screw holes and giant wheels have the same complexity. You can pass in a parameter to change this for each circle/cylinder/sphere, but now you're manually managing something that most CAD software does automatically as a matter of course (or doesn't need because I imagine in "real" solid modeling software not all geometry is polygonal).

Slugworth posted:

Any chance popping it open and throwing some grease in there might help, or is this just symptoms of a dying motor?

CopperHound posted:

Shouldn't we be paying attention to what we use to lubricate what are likely plastic gears?

E: I like keeping a tube of superlube around.

A Proper Uppercut posted:

Well you guys were right about the valve configuration, I should've looked at it closer after it was mentioned. There is a third port on the push button that exhausts after you let go. So it's a manually actuated 3/2 valve I think.

On the other hand I was able to make the valve I bought actuate using the PLC so I'm on the right track there. It just gets stuck open after it cycles.

On that note, I think this is what I should be looking for in the correct valve? The PLC is outputting 120VAC, not DC like I said earlier.

https://www.automationdirect.com/adc/shopping/catalog/pneumatic_components/directional_control_solenoid_valves/solenoid_valves/avs-3312-120a

Splode posted:

I like to lube plastic mechanisms with acetone personally

Foxfire_ posted:

If it doesn't already have one and you're buying more stuff anyway, add a manual valve to the incoming supply line so there's an easy way to make it stop doing things without waiting out the cycle / if the software's messed up and is constantly triggering it.

These are automationdirect's twist-to-release push buttons. You mix-and-match a button kind, mounting adapter, and separate valve. I think they only make the valves for them in 5/32 though, so that specific series of parts might not work for you.

I would blow Dane Cook posted:

Rescue Toaster posted:

If you look at how those shift registers connect to the buffers, you can clearly see Q0->1D Q1->2D, Q2->3D, Q3->4D
But then it reverses and goes Q4->8D, Q5->7D, Q6->6D, Q7->5D.
And then it appears just looking at the PCB the LEDs run straight off the buffer outputs pin-by-pin.

So I don't see how it would expect to work unless you account for that in the step order.

I would expect you'd have to do something like:

code:

		disp_led(1);
		Delay500ms();
		
		disp_led(1<<1);
		Delay500ms();
		
		disp_led(1<<2);
		Delay500ms();
		
		disp_led(1<<3);
		Delay500ms();

		disp_led(1<<7);
		Delay500ms();

		disp_led(1<<6);
		Delay500ms();

		disp_led(1<<5);
		Delay500ms();		

		disp_led(1<<4);
		Delay500ms();

I would blow Dane Cook posted:

https://i.imgur.com/yzyxYK1.mp4

Cojawfee posted:

You just have to change the alarm sound from "Warning: Bear detected!" to "Warning: Bear or an animal with similar food stealing tendencies detected!"

ryanrs posted:

If anyone is interested, I'm developing a Bear Radar to guard my picnic basket while camping in my minivan.