Search for disc in Topics


Piezo Disc

Can anyone enlighten me on the uses of the flat bi-metal piezo discs that have two leads (red/black) ? are these only good for more complex circuits or is there a way to make them create noise like a piezo buzzer? Thanks

Topic by chuckers    |  last reply


Bike Disc Brakes

I have the Trek 4300. now i was too cheap to buy it with the disc brakes, but after 2 year i realized i would like them. So do i have to buy new tires, and brake lines, and levers. Or do i just have to hook up a disc brake to the brake cables?? How much would this upgrade cost me?

Topic by DELTAWOLF05    |  last reply


disc stepper motor

Ok im new to the tech world but i have a an idea haven to do with a stepper motor that is in disc form and capable of being programmed but i dont know what parts i would need and how to go about it any insight or possibly a parts list to do it? please and thank you

Topic by mobilesuit990  


Reusable Burst Disc? Answered

So I had an Idea for something, but the problem is that it would need a burst disc or rupture disc, which have to be replaced after each use. What I was wondering is if there is some way to make them be able to be used multiple times, or something that could act like a burst disc (eg releasing a large amount of pressure very quickly) that could be used in quick(ish) succession?

Question by Mecknavorz    |  last reply


Plasma disc voltage? Answered

Hello! I've seen a few of these plasma discs and was wondering if anyone know what voltage these things generate? I know its some high-frequency ac voltage powering the disc, but does anyone have a rough estimate? Just curious. I've been meaning to take one apart, but I don't think my multimeter could withstand a  shock from it. (Rated for 600v).  Pic of a plasma disc: http://image.made-in-china.com/2f0j00HVatueUbBTGl/Plasma-Disc-J-LP200-B-.jpg Thanks!

Question by transistorguy    |  last reply


Phenolic discs for whimshurts? Answered

So recently I found a webpage about someone using Phenol for a rotary spark gap for a Tesla, I had never heard of this material and don't know too much about it. For a while now I have wanted to make a whimshurst that is larger than the one I currently have (bought online, a gift from my family) but with my current one i have an issue with the acrylic discs not only not being balanced but also warped causing them to start vibrating on their shaft making it harder to turn the handle. I figure that because every piece of acrylic i have ever worked with has been warped that is would be best to find an alternative. My question is, would it be easier to keep phenol flat and balance or would it be best to stick with acrylic? another thing im curious about is this a material that would even work for this application? Lastly i would like to say that i did try doing a little research on this and didnt come up with anyone trying it for this purpose, i know that in some cases static can act a little differently than normal high voltage arcs (say, from a microwave oven transformer) which brings me to this question. P.S. im not sure what category this should go in, if anyone thinks there is a better one let me know and i will change it.

Question by pmk222    |  last reply


Why is my xbox not reading any discs? Answered

You insert a disk and it just says open tray like there is no disk anyone know what the problem is?

Question by DBMods    |  last reply




How To Cheaply Make A Disk Golf Set?

I am looking for a way to build a disc golf course in my backyard for as cheap as possible.

Question by Deadhead 12    |  last reply


how to open disc drawer?

Does anyone here know how you can open the computer's disc drawer with a DOS command? much appreciated if you know

Topic by keybee    |  last reply


Is there anything useful to be done with a Kodak Disc Camera? Answered

,,,and no, I'm not talking Compact Disc, Hard Disc, or Floppy Disc.  I'm talking about a disc of film. I understand that film can still be obtained for this camera, but is almost impossible to get processed, and the images are pretty awful. So, what fun stuff might be in the guts of that funky plastic case?

Question by yoyology    |  last reply



Does anyone know what could cause an Xbox 360 not to read any of the games disc and how it could be fixed?

My Xbox 360 is having problems reading any games  that are put in. Every time a disc is in, it doesn't show the game's picture and says "Open Tray". Does anyone have an idea as to what could cause this and is there a way to fix this myself? Please help.

Question by BucketBasher    |  last reply


Anyone know how to fix this or what is the problem?

I mod my ps2 now it can only play burned dvd game. whenever i tried to play the burned cd game it always display disc error or no disc.

Question by nhankc    |  last reply


Burning a Mega-cd disc

My sonic-cd got cracked somehow but i still want to play. i have made 3 discs but none of them work, do i need to burn the ISO file or extract the ISO file and then burn it?

Topic by ultimatesx9    |  last reply


fully auto disc launcher

Should I post it?Few details.*Holds max 3 discs*Fires 30ft*new trigger system*choice wether to fire the discs one at a time or all at once.To veiw the instuctible click this link https://www.instructables.com/id/EKZDS07F06CXMJI/

Topic by Shadow64    |  last reply


How are AudioStrobe discs constructed. ?

What drives the light track and how is it constructed? Thanks for any info.or signposting

Question by dahook    |  last reply


Making a bootable Disc/USB

So i recently got mircoXP and i was wanting some help making a bootable USB or disc. I want to have a portable OS that doesnt have to install.... is this poosible with microXP? If so how?

Topic by spiker    |  last reply




Make a laser from a cd player? Answered

Can it be done? I mean something has to read the disc.

Question by Chromatica    |  last reply


Frisbee golf equipment question.? Answered

I was idly browsing Frisbee equipment with a view to persuading an acquaintance in the local school sports hierarchy to start an Ultimate league going, when I noticed that there are different kinds of discs for Frisbee Golf - Distance Drivers Fairway Drivers Mid-Range Drivers Putt & Approach Yet, in the catalogue descriptions, they are all the same size, and all the same weight. What is the actual difference between these discs?  Or is it just a scam to make you buy more discs?

Question by Kiteman    |  last reply


do you think nintendo will mind if i have a game made and put on a cd then sold online?

Nintendo hasnt gave me the answer yet so i dont know if i can. also id liek to know what kind of disc the game disc is?

Question by rich4124    |  last reply


How can I make a piston? Answered

By that, I mean how can I make that disc that goes in the tube? I need it to be airtight (I'm planning  on using it in a homemade watergun). And if I can't make one, is there a non-online shop from which I can buy it?

Question by Shagglepuff    |  last reply


Fix my ps2 Game?

I can't seem to be able to play my GTA: Vice city anymore on my ps2, the disc is pretty scratched in a lot of places, but it did work before on an older system just fine but on my slim ps2, I guess that laser isn't strong enough. Any ideas?

Topic by Punkguyta    |  last reply


Converting Hardrive into mini version of hypno disc!

Hey,Just found an old hardrive and messed about stripping it down to its bare minimum, it's currently on my lap with just the curcuitboard that controls the spindle, the actual spindle and the two discs.If I plug a molex connector in then it will spin continuosly at its idle speed.My QuestionIf I want to somehow power this hardrive to make it continuosly spin wirelessly how could I do this?I was considering maybe a laptop battery of some sort, I could then control it on a channel on an RC circuit.I have experience in the remote control wiring part just not sure the best way to power this wirelessly?Any thoughts would be very greatful to help me on this little challenge! :)Thanks,New user Dan!

Question by danthorpe2002  


Lumbar Laminectomy Spinal Surgery. (final update)

It looks like, after my visit today with the Surgeon, that the Lumbar Laminectomy is probably the best route for me to go at this point. Tomorrow, if I can get my wife to agree with me, I will be making the appointment, hopefully for next week (Tues, or Thurs). I don't believe in luck, so; here's hoping the surgeon is awake, skillful, and hasn't had so many coffees that his hands shake the morning of that surgery :-) UPDATE #1: I am having doubts about the process. I may go for now with only therapy, and if matters become worse rather then better, then have the surgery. But things have already taken a turn for the better.....I have felt the best today, then I have felt in the last 3 weeks. . . we shall see when I start. UPDATE #2: Until tomorrow, I will not know for sure, but at this point, my back is feeling a bit better. I have been able to go a little longer without pain meds then before, so I do think therapy will work.    I still have to get that second opinion however.   UPDATE #2.19375 supplemental: I have my appointment @2:00 PM today for the second opinion. I hope we can come to an agreeable conclusion as to how to proceed with the treatment.   I will update again, when I know more.   UPDATE #3: The Second opinion appt has been attended to, and we came to an agreement that 3 weeks of therapy should proceed any consideration of surgery.   So, if this works, I will be off work for only 3 more weeks.  If not, I will have to have surgery done, and will be off for at least 3-4 more.    UPDATE #3.21978 supplemental: I start therapy on Thursday, and will be finished November 5th if all goes as planned. UPDATE #3.714155 supplemental: Tuesday starts my official treatments as Thursday was just the initiation and measurement phase.  I will report on how well the first day of stretching, exercise, and time on the RACK went.     UPDATE #4: Newest estimate for my return to work is currently Nov. 5th or 6th (possibly the 9th, if they don't want me to start until Monday....we will see.   Things are slowly improving.  I am sitting up for a bit longer now, although I am not able to stay put (sitting, standing, walking) for overly long periods yet; there is improvement. UPDATE #5: Finished with today's therapy session,  and started Traction for the first time.  I am feeling much better now.  Thursday, they will use the machine for an even longer period of time, and I should start to get further relief. UPDATE #5.6297 supplemental: Just got off the Traction machine an hour ago.  I am starting to feel even better then before. I hope this lasts, with the strengthening of my core muscles....below is exactly what RACK looks like :-)  UPDATE #6: Friday's work went well, and I feel pretty good this morning about going back to work this evening.   Thanks again for all your support ! You all have been great, bearing with me in all this.....          

Topic by Goodhart    |  last reply




how to recycle Tassimo T-discs? (is it do-able?)

You know what i mean? the little disc thingys you just pop in the machine & press the button. BUT, they are to expensive, cappucinos (or however it's spelt) are £ 3 for 8 drinks :(.  so, I was wondering if there is a way to recycle them. just to clarify, Tassimo is a cofee mavchine from bosch

Question by rrrmanion    |  last reply


X box 360 disc problem- The laser disc quit playing games.

I called the company and they said it was off waranty but that the laser disc needs to be realigned. Is this something that someone with computer knowledge can do for me at home?

Question    |  last reply



What is the best soft iron disc thickness for 22mm x 3mm disc magnets

Hi, I am building a wind turbine with 12 , 22mm diameter x 3mm thick magnets on 6inch diameter soft iron disc and 9 coils on a wooden stator? Is the thickness of the soft iron magnet discs critical? Is 3.5 mm too thin or 10mm too thick?

Question by bulbwatt    |  last reply


How do I dislodge a xbox cd from in the disc drive?

Xbox game disc is stuck in the xbox unit.

Question by Karetuarua    |  last reply


Can I turn a cantilever brake bike into a disc brake bike?

I want to put disc brakes onto my bike because my other brakes are going bad. Disc brakes are also more effective at stopping you in bad weather.

Question by airsofter1    |  last reply


PS3 Phat disk drive wont let disc be inserted?

Ok, I just finished fixing a friend YLOD and the disc drive unfortunately wont work. There are these two grey bars blocking it in the drive bay. Anyone know why this could happen?

Question by Krayzi99    |  last reply


Laptop disc drive converted to external usb disc drive for a netbook

I bought a netbook last night on an impulse. So i didn't realize it didn't have a disc drive. I do have an old laptop drive, images below i hope, that i'd like to use. So i was hoping maybe someone knew of a converter or some way to make it work as an external drive as mentioned before. Any help is welcome. Even if it's someone saying i can't.

Topic by cfoster17    |  last reply


Turn Table Greeting Cards

Turntable Greeting Card  Handmade greeting cards are way cooler and more personal than paying $4 for a Hallmark greeting card. Create a sleek looking greeting card to send to a music lover using old floppy discs.  

Topic by Carleyy    |  last reply


I tried installing Star Wars Dark Forces II on Vista, but it's not working, help? Answered

I got the sudden urge to play Star Wars Dark Forces II. So I tried installing it. I put the disc in. Ran the program. And when I click install, the program goes unresponsive. Is it because it's incompatible since it was originally made for Windows 95? Or what? Please help, S-C

Question by Serial-Cricket    |  last reply


remove paper label on Vinyl records disc

Dear all.. Please help me to know how remove paper label on Vinyl records disc.I have tried with lighter fluid but not success.Thank you in advance.

Topic by lam    |  last reply


How do I fix a gamecube disc?

So I've been playing legend of Zelda ocarina of time for years. But It broke, and now I don't know how to fix it. Toothpaste I've already tried, penut butter is too messy, and I don't think we have any disc cleaner. It has light scratches all over the edges of the back. I've also tried an eraser. Please help

Question by Jconard234    |  last reply


200 disc CD player to DVD conversion? Answered

Is there a way to convert a 200 disc cd carousel/ player into a dvd player? I like the idea that it would just be a matter of swapping the hardware and hooking up a new laser, but I am a bit naive in that department.... I also like the idea of letting my kids one day pick through the dvd CASES and avoid getting PB&J; all over my disc collection? Your thoughts? the below was the only decent sized image I could find of what I am looking for in general terms... note this item is already a dvd player. The one I am looking to convert is at my brother in laws, and only plays cd's (also a sony).

Question by RWWESTdesignworks    |  last reply


Is it possible to virtually install from recovery discs?

I have a new macbook pro that comes preinstalled with snow leopard. Upon digging in the attic, my brother found mac os 9 and the recovery discs for my dad's macbook pro (the old model, 2006, preinstalled with tiger). I was curious if there was a way to virtually install tiger (like using virtualbox). The reason I want this is because I want the classic environment to play some old games, and I tried Sheep Shaver for mac os 9, but it crashed when I tried to play the game. From what I understand, tiger was the last to support the classic environment.

Question by A-Nony-Mus  


x box 360 disc drive firmware?

 On july 2008 i bought my 4th x-box 360 and this time i got a halo limited edition thinking it would maybe perform better but the same problem came back,it does not want to read any type of discs. In early september i bought an X-BOX 360 DVD DRIVE,HITACHI LG 79FK GDR-3120L  NEW! (Other) (79fk). I replaced the old one and apparently,i need a firmware. Would someone explain me what it is or what i need to do. Thanks to all. any tips would be very appreciated

Question by Athanas  


Slicing a hockey puck into discs (vulcanized rubber)

I need to slice a hockey puck (1” thick by 3” diameter) into very thin discs (1/16” to 1/32” thick). This can be done... the NHL sells 1/4” puck coasters (see photo). Thinking about a mandolin design where the puck is mounted and the blade moves with my hand in a sled device. Puck rubber is very hard to slice. Thinking of Japanese angled blades (‘7’ shape rather than the American ‘V’ shape). Looked into ice auger blades (for blade thickness and stability). Just about de-gloved my hand with large box-cutter blades (bent as well when cutting the rubber). Any ideas? Raincock@ualberta.ca

Question by Marfeetus    |  last reply


disc/disk brake squeal rear brake? Answered

After a rainy day riding my bike, i had wiped it down and forgot the rear brake and now it squeals when I try to use it. More like an elephant noise. Help please!

Question by knektek    |  last reply


Two rotating discs, synced and remote controlled.

I realized that I change the angle of my speakers many times a day and it gets really cumbersome. To use my time better, I thought that I'd be nice to have motorized rotating discs under each speaker, wired so that I could adjust their angle from a simple remote controller on my desktop. This would be because if there's a program, the speaker angles would always remain in sync in relation to one another, and because sometimes the speakers are actually located a bit inconveniently in terms of getting near them to adjust the angle manually.  Take a look at the attached image. I can't get that stupid image uploader to work, it uploads but doesn't keep the file, so here goes:  https://dl.dropboxusercontent.com/u/31684214/Speakers.jpg Before you start criticizing it, don't: The point of the image is to demonstrate a principle. It doesn't tell anything about the room that the furniture is in. It isn't in scale. The sound fields of the speakers aren't trying to portray reality accurately, they're just there to make a point. Everything in the image is a rough sketch and its purpose is to make explaining easier.  As you see, the situation is that sometimes I sit at the desk, sometimes at the back of the room. If I keep the speakers pointing almost straight (like image 2) while sitting at the desk, I feel like most of the sound really "opens up" behind my back only, going past me. If I keep the speakers in 45-degree angle (image 1) but decide to watch videos from the sofa, again I feel like the sound isn't quite pointed at me and it's especially difficult to listen to dialogue. Before you start talking about the room - yes, I know about acoustic treatment and I'm taking it onto account already, but my auditory processing isn't normal so the acoustic treatment alone isn't enough, speaker angles make a huge difference for me. I'm saying this because the internet is full of people who get too caught up on the actual principle and start explaining why they think that I don't need something or don't have a problem with something. From having manually adjusted the angle thus far, I already have the experience of how this makes my life easier. I'm looking for advice/help or someone to make this for me as a service. Due to shipping costs, makers should be in Europe only. Advisors who could guide me through, doesn't matter where you are. I'm guessing that besides the disc parts, the remote control would require knowledge on electronics and coding of microcontrollers. The controller could either have a wheel or simply two buttons, one closing the speaker angle, other spreading it wider. The angle range only needs to change within 90 degrees so that suffices, but the program doesn't need a specific angle limiter made if it happens to be able to turn, say, 360 degrees. Taking ideas of methods, estimates, part choices and possible compensation fees!

Topic by rikuzenith    |  last reply