I asked this to /g/ and they sent me here. I am currently making a budget studio setup. What is the best site to buy soundproofing foam panels? Like best price per piece? I assume the Chinese no-brand is just as effective since it's just foam. Or, if this is possible, is there a cheap alternative material at home improvement stores?
>>959993 acoustic tiles are notoriously expensive, for some dumb fucking reason.
if you can get yourself some rolls of fiberglass heat insulation all you have to do is put it into frames and then put fabric or grillcloth over the outside to make it look nice.
also, some brands have foil on one side, for high frequency absorption you want the foil against the wall, but for low frequency absorption you want the foil on the outisde toward the room. you can alternate or whatever, or use the low Hz version more in the... Comment too long. Click here to view the full text.
>>958824 Start with something simple, a 4 instruction cpu that can load a register and add two numbers or something. Forget microcode, use combinational logic based on the instruction for now. Start at a high level, define your alu, controller, memory etc. Then figure out their operation, create from logic gates then simply swap logic with the fet equivalent
So, my deskspace is boring as fuck. I was thinking about hanging some shelves around it to put action figures/anime statues on. I was looking at Ikea Lacks but the depth on them in around 10" and that would make them stick out pretty fucking far.
-What would be a nice layout for it with it looking cramped as fuck?
-What are some decent floating shelves that don't have a foot long depth?
pic related. I've got 5.7mm thick veneer and i don't want any edges to be visible when I glue myself a small box.
Is it possible with common tools or am I shooting myself in the foot? My intuition says that I could just file the edges so they fit 45° and 45° but I want to be sure if there's a better way or that if this method will cause me problems.
Hey /diy/ My Girlfriend is in charge of the gas bill, and she neglected to pay it, even though i had more than enough money to cover it when she did not. They did what they always do and turned the gas off. I repayed them but they will not come out until the 7th of march to turn the gas on. I dont really want to live in a <50F house all week, so im going to turn it back on. However ive never seen a lock quite like this one. Im trying to open it while keeping the lock intact. I do not have bolt cutters to cut it off. Ive included me 2 years in mspaint diagram of... Comment too long. Click here to view the full text.
Get a replacement price on the lock from them then weight up if you are willing to cut it off.
I know some contractors who are regularly faced with being given the wrong keys. They ring the customer and quote them a price per hour to sit and wait for them or given them the option of cutting it off. You can guess what normally happens.
>>955438 Pay the bill. If you bypass the lock you are committing theft. They may decide to not restore your service at all then. They may decide to call the police and press charges. Is it worth having a criminal record over? Just pay the bill.
This is the wall directly over the jpist with two registers cut into it. Note the floorboards pulling away, and the door I had to hack up to get to close. Assumed the floor was warped because the heater and furnace were down there. Next time I won't use the inspector the realtor suggests.
Currently I'm working on creating a pan tilt head to mount an antenna on, with very high resolution, for my thesis. I found some usefull projects as reference already but I have some questions especially about gearing.
Since I'm an electrical engineer, I have no experience whatsoever with mechanical thingies. Yet I have to design an almost entirely mechanical thing. I've already searched the net a bit, but cant quite figure out how worm gears and worms function; how their reduction ratio can be calculated for example.
I know that it's... Comment too long. Click here to view the full text.
>>958460 Well if you think about gears you can work out the ratio from the number of teeth, this might seem intuitive but you need to know why. If you think about toothless wheels it's the circumference that matters, twice the circumference means twice the distance and so half the number of turns.
A single start worm has one tooth, but the tooth is wound around the entire length. The tooth is then in a different configuration because the angle of the tooth means you have to angle the gear which is why a worm has... Comment too long. Click here to view the full text.
Your ratio is the number of teeth in the worm wheel divided by the number of starts on the worm.
The ration you use will depend a bit on how fine of an adjustment you want to achieve, how much space you have for the parts, and how much load will be on them. If you have room for a 50mm diameter worm wheel and a 50kg load you probably want to steer toward a coarser ratio- the teeth in a 60:1 worm set will effectively be twice as thick/strong as a 120:1 set.
A smaller ration isn't automatically more precise than a higher one. But a higher ration will be more... Comment too long. Click here to view the full text.
>>958467 Ultimately the antenna mounted on the pan-tilt head will have to track very tiny RF chips over a fairly large distance. The angular accuracy of the antenna (not up to me) could get as close as 0.1 degrees in theory, only if some advanced design technique actually works, else it's going to be around 2 degrees. My aim for the resolution of the moving head is therefore around 0.1 degrees and I'm currently thinking of using a stepper motor, since servos have a limited travel, steppers can be geared down... Comment too long. Click here to view the full text.
All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
This is a 4chan archive - all of the content originated from them. If you need IP information for a Poster - you need to contact them. This website shows only archived content.
If a post contains personal/copyrighted/illegal content you can contact me at firstname.lastname@example.org with that post and thread number and it will be removed as soon as possible.