Flexible LEDs to boost biomedicine

Nature News is reporting today on the development of thin flexible sheets of LEDs which could be used for medical diagnostics, or even implanted in the body to use with light-activated drug delivery.  Besides these uses (obviously cooked up for the grant proposal :-) ), the clothing and other DIY uses seem fantastic! The interesting thing to me is that these sheets are made with conventional semiconductor LEDs (surface mount) and the flexibility of the leads is handled simply with extra lead lengths to pick up the slack. The original paper is being published in Nature Materials (Kim, R.-H. et al. Nature Mater. doi:10.1038/NMAT2879 (2010).

Topic by kelseymh 


Eple Sheet Music

Does anyone know where I can get Eple original edit sheet music? I've searched and searched, but can't seem to find it.

Topic by puffyfluff   |  last reply


Sheet metal input

Fixin’ to make to magnetic board and need some input on what to purchase. I’m seeing several types of sheet metal. There’s plain sheet metal, zinc plated, cold rolled, weldable, galvanized, etc. Is there a particular type I should purchase? Hoping to avoid anything that will tarnish or leave marks on any paper out on the board. Thank you for your input!

Topic by jpmarth   |  last reply


carbon fiber sheets

I need 2x2 twill, cheap

Topic by freshmanfred0000   |  last reply


Cutting acrylic sheets

I am trying to cut some pieces of acrylic sheeting about 3/16th inches thick.  I was wondering if the instructables on the laser cutter built from 2 old scanners would work for cutting the acrylic sheets? Or if not that, what might work for making acrylic parts that are flush enough to chemical bond making a water tight connection? Thank you, Eron.

Topic by eronjonson   |  last reply


Learning Sheet Music

So I have been playing bass for a little while now and I figured it would be useful to learn how to read sheet music. I need some kind of help so i can read music faster and rememeber where all the notes are on the bass. Any tips, software, techniques or any form of help would be nice.

Topic by wingman246   |  last reply


Where to find large sheets of cardboard

I know back a few years ago you could get huge sheets of cardboard from Home Depot and it was some great stuff, but now they dont do it. Does anyone know where to find large sheets of honey com or 3 ply cardboard these days? Or any 4' x 8' sheets. Thanks, Ethan.

Topic by mindstormmaster1   |  last reply


Can I melt a plastic jug into sheets for vacuum molding with a heat gun.Say a recyclable jug of juice or ketchup bottle?

I have seen the threads on homemade vacuum forming and was wondering if I could make sheets out of the recyclables I already have. Has anyone tried/ succeeded in doing this? Thanks

Question by lespaulclassic   |  last reply


Suggestions for bonding PVC sheets to ABS sheets, for composite armor?

I have a crazy idea for making tough plates out of thermoplastics. Does anyone have any ideas for bonding PVC to ABS plastic? Two materials will add to the strength and durability of the plate. If possible I would also like to sandwich some kind of fibers in between the two plates, such as carbon fiber. Does anyone have any ideas on this? I was planning on heat forming the sheets, then maybe pressing them together at high heat, but an easier method would be appreciated. 

Question by ilpug   |  last reply


Where to find brass sheeting?

I'm planning a project involving but I'm unsure about where to find brass sheeting. Anyone know?

Topic by Chemical_Anomaly   |  last reply


Guitar sheet music question

I know this is a newbies question. But how do you read chords on sheet music for guitar? Not tabs. I mean actual sheet music.

Topic by Lemon-Duck   |  last reply


Music to Sheet Music Converter

I play the violin and some of the music that I want to play is not available in sheet music. Has anyone ever come across a computer program that converts regular music into readable sheet music?

Topic by Sedgewick17   |  last reply


Free Piano Sheet Music?

Does anyone know of a website that provides free printable sheet music. I'm interested in modern music. Alors on danse Stereolove Scars (Papa Roach) Don't stop believing  (Journey)    and others

Question by weasel999   |  last reply


Joining Aluminum Sheets in Layers?

I need to join aluminum sheets together. When I say sheet, all I mean is the body of a coke can. So, I would cut the top and bottom of the can off, then make a vertical cut to make the body into one long strip. I would do this again, and then I want to join these two strips together, end to end. Would 1/8" rivets work? I thought of solder, but I heard solder doesn't stick well to aluminum. I would prefer the aluminum to stay down. Does anyone have any ideas? Thanks!

Topic by Bran   |  last reply


Blank Drum Tab Sheet

This is a file to help write drum tab music. All you have to do is just edit it then post it here. So get posting!

Topic by knex maddo   |  last reply


sheet foam shock absorber

Im making a trailer for a longboard (skateboard) with a speaker setup on it weighing around 20kg, the speaker im using for it is a fairly durable plastic mobile DJ style speaker but even so i'll be pulling it around over potentially rough tarmac/asphalt surfaces on a trailer made from skateboard parts so could a couple of small sections of foam sheet sandwiched between skateboard truck baseplates and the deck offer adequate shock absorption? i have squishy 1.5cm thick yoga mat foam or firmer 1cm thick sound proofing foam to choose from...

Topic by ambientvoid   |  last reply


Laser cut sheet metal

I just got a couple designs back form the laser cutters. This is 12 gage sheet metal cut with a 2400 watt laser. Pretty cool right? It’s amazing the kind of edge it can leave behind. Just wanted to share with everyone. This is part of my ambition for putting together project kits, which help you create items from metal. Soon I’ll have a kickstarter campaign going to help launch 13 kits. These particular designs are based off of the salamander pendant and Excalibur letter opener.

Topic by Mrballeng   |  last reply


Fuse Sheet Plastic to Wood

Not long ago, someone was lookin for solution to waterproofin wood box. Can't find it at the moment. Maybe someone else can find that thread. My experiment: Hot clothes iron                          [][][][][] 4 layers paper towel              ------------------                                                   ----------------                                                    ----------------                                                    ------------------- 1 layer wax paper                    ____________ 2 layers clear plastic tarp        ============== Block of 2x4                             [[[[[[[[[[[[[[[[[[[[[[[[[[[[[[] The layers of plastic fused pretty strongly together.  Bond to the wood was moderately weak. This could be done with multiple layers, and only  the lowest layer stapled to wood. Thus achieving strong bond to wood, yet no leak at staples since only 1 layer is punctured.

Topic by Toga_Dan 


Is there anywhere cheap in southern ontario to buy Acrylic sheets thats not home depot or things like that?

Ive seen some prices of acrylic sheeting for american stores and the price difference is astonishing for the same thing here in canada. As the title says I'm looking for a place or a store to get some sheets for a few projects from here and I don't want to spend that much for just a couple pieces. Is there anyone on here from southern ontario that has had the same problem, and potentially with a solution? :)

Question by ntowner   |  last reply


Where can I buy wax sheets? Answered

I live in Toronto, ON Canada and I can't seem to find a store that sells wax sheets for molding/casting purposes.

Question by luch   |  last reply


all in one complete laundry sheets

I've been using those Purex all in one - detergent, fabric softener, dryer sheet - in my High efficiency front loader.  When those sheets come out of the dryer, they look like they could be reused.  Any ideas how to make my own "refill" products and how to do it? tHANKS!

Topic by opentoedshoesan   |  last reply


Safest way to break sheets of glass?

I'm moving and have a sheet of brand new picture framing glass 39 x 30 inches.  Nobody wants it... I've tried giving it to framing places.  What's the best/safest way to break it into small pieces to go into the garbage? 

Question by mole1   |  last reply


US source of thin polypropylene sheets?

I'm looking for sub-mm thickness polypropylene sheets for use in plastic origami projects - sort of like the Orikaso folding dishes and polyscene's work. I need sheets that are at least 14x14" without creases. Colored stock would be great, white is just fine - but black won't work. So far I've struck out with the local plastics fabricators, signmakers, and printers, but hope springs eternal - any suggestions would be appreciated.

Question by brossa   |  last reply


Melting clear plastic (PET) into sheet

Aloha, I am working on recycled PET plastic for art projects. I have read everything that I can find on melting clear PET and reforming it. My issue is it keeping it clear or at least translucent for the art projects. I cut clear water bottles into small pieces and place on a cookie sheet and place in 500F degree oven. In about 3 mins it is liquid, still clear, and in the shape of the round pizza pan it is in. Almost immediately after I pull it out it begins to cool and turn white and opaque. So, my question is, is there something I can do to keep it clear? Is there possibly a cooling process to do this? Maybe slowly drop the temperature? Any help or tips will be greatly appreciated. Aloha, Tim

Question by alohatimashby   |  last reply


Band saw recommendations

I am looking to get a new band saw for the workshop. My previous experience is in woodwork in large workshops so I have always shared a large band saw but now my place of work wishes to get one and wants to cut a variety of materials. Do you have any recommendations for good small band saws in the UK? Is second hand better than new? Is a tension guide worth it?We would like to be able to cut:Thin sheets of plastic (Acrylic, ABS, HIPS up to 6mm)AluminiumMDF, plywood and wood.Basically items that will made on the CNC or vacuum former.I am the most experienced staff member with this machine and although I have used them extensively for woodwork I have only changed the blades, serviced and cleaned them a handful of times. Does anyone have any advice about good maintenance or band saw use etiquette?Many thanks,

Question by Roibo   |  last reply



How to make a blanket out of flat sheets.?

I have made a queen size blanket out of flat sheets and used a flannel blanket for the inside. It is very heavy. I am wanting to make a twin size but not with the flannel blanket. What suggestions do you have?

Question by    |  last reply


Is it possible to put a straight bend in a perspex sheet?

I want to put a sheet of perspex  on the back of a shower cubicle on an inside corner without joining it at the corner Is it possible to bend a sheet of perspex at a 45% angle

Question by Mopsyben   |  last reply


How to bond cross linked acrylic sheets?

I want to join two 1/4" thick acrylic sheets.  All the welding adhesives for acrylic claim to not work for cross linked joins.  Can someone please suggest the proper chemical or any other method to bond the two pieces together. Thanks.

Topic by kabira   |  last reply


How do I print on latex sheets?

I am a latex clothing designer and I want to make prints on the latex sheeting.All latex sheets are just in one colour (from white to black,) and I want for example a tiger print on it or a print of stripes or a checkerboard etc. The same question but than to texture the latex. Ofcourse the printed ink should not be erased when it is wet, so it should be waterproof, smudgeproof etc. I have some pictures attached as an example.

Question by Eendje   |  last reply


What is a good sheet metal fabricating source?

I have done a few searches and found numerous online fabricators that do a range of things from laser cutting to finishing. Are there any recommendations - ones that I should stay away from or that have a good record? On another note, I would love to support a local business or have a local shop do it for me so are there any places anyone knows of that are native to Cincinnati, OH. Google Maps hasn't really helped (or the phone book for that matter), any help is appreciated!

Question by mweston   |  last reply


What paint will work on latex sheeting for garments?

I want to paint on latex clothing both in detail and simple designs. What paints and mediums will work with the thicknesses of latex to stretch with the garment? Prepping the surface with what formula to get the best bond between paint and latex? Will the thickness of the latex matter?

Question by dawnhopper   |  last reply


Prop building using Pink Foam sheets?

Found out that Pink Foam is used in building signs,grave stones "beloved tombstone" and other props. they showed examples but lacked the how to's need to know more besides a dremel tool what else can you use with this foam. can you treat it like wood carve patterns in to the foam?

Question by Eyewondery   |  last reply


Cutting brass sheets: replicating Christmas ornaments

I'm looking to replicate a brass ornament for a dear friend. The ornaments in question are similar to these (http://imgur.com/a/WGPXE) Do you guys have any suggestions on how to get the precision for the concentric rings as well as the detail inside? I thought about using a Dremel for the detail work, and snips for the outside, but I'm having trouble coming up with a solution for the rounded rectangles.  Thanks!

Topic by RamboBrite   |  last reply


How can I soften aluminum sheeting? Answered

Hi,    I have some aluminum sheeting that I bought in a roll from a hardware store. It is aluminum flashing, and although it has no rating, I assume it is about 26 gauge (.019") because if I remember right thats the standard. I cut the roll into 4x14" strips. Right now they behave like sheet metal, kind of springy and difficult to mould. What I need is more like thick aluminum foil, where it can be bent all around, multiple times without breaking and retain shape incredibly well. I've tried to cold work the aluminum by bending it and running it over an edge but its not very effective. Is it possible to easily anneal the aluminum in a conventional oven or using a propane blowtorch? I don't want to exert too much effort on each piece because they're going to have a short life before I hand them off and they get thrown away. In case you're wondering or need more details: I'm trying to make moldable aluminum splints, like the SAM splint. Pre-made SAM splints cost $4 each but this sheeting would work out to under $.11 each. In case you aren't familiar with them, SAM splints are essentially a plate of thick aluminum "foil," about 4"x36" wrapped in foam. The cool thing about them is that you can bend them very easily to any shape or body part, but when you mold them into a curve they have incredible strength to support an injury. 

Question by SeniorShizzle   |  last reply


floppy disk/ iron oxide sheet use?

I saw the ipod charger using lemons here: http://www.thenakedscientists.com/HTML/content/kitchenscience/exp/charging-ipods-with-lemons/ And I began to wonder what would happen if  you sandwiched a bunch of floppy disks together and put them in a solution... Hook them up in series and well what? Could each one be used as a tiny cel in a battery?  I am going to look around, I'm sure my colleagues are still hoarding floppies. I think I'm gonna need a lot of alligator clips on this one...Must be something a sufficient number of floppies can still do for us.

Topic by flashj   |  last reply


How do i load transparency sheets to a printer?

My transparentcy sheet is attached to a white sheet. Do i remove the white sheet? If not, which way do i install it white sheet facing up or down?

Question by    |  last reply


Grouting combination sheets of glass and marble tile on backsplash. Answered

My 12" sheets of marble and glass tiles (combined on same sheet) have marble tiles that are thicker than the glass in many spots making the finished surface uneven. How would I grout this uneven surface?

Question by loree.kaye   |  last reply



Recommend a transparent adhesive for large PVC sheet with glass?

To decorate a shop window, I have a colorful large foamed PVC sheet (1.5 x 6 meters) want to stick with the shop window, color side of the PVC sheet face out. Please recommend a cost effective transparent adhesive. (similar as attached image without frame)

Question by ericzheng   |  last reply


Disposable camera flash and a EL sheet or wire - Will this work?

If we replace the capacitor of a disposable flash with a EL sheet or wire, will it glow? (this is since EL wires can be hooked up straight to the main voltage, which tend to use over 200volts. A camera flash that uses a capacitor that charges at a high enough voltage might be good enough for powering a EL sheet.) anybody willing to give this a shot?

Topic by akimbo m   |  last reply


Where to get stainless steel sheets for oxyHydrogen generator? Answered

I am looking for thin stainless steel sheets to use as the electrodes for an oxyHydrogen producing "dry cell" set up to power a welding / cutting torch. It should be in sheets that can be evenly devided into 6 inch squares.  I am not sure what alloy it has to be so if you know about stainless steel alloys I would love advice. The electrolyte will be NaOH, and it will probably run at 120V AC at as many amps as it will draw but I might put in one of those light dimmer knobs to control it a little.

Question by Jaycub   |  last reply


Does anyone know how to bend a polystyrene sheet? Answered

 For my next project, I need to bend a 1cm thick polystyrene sheet. Does anyone know how to do this? (thermal, chemical?...). Added on May 4th: just to be sure, I'm talking about EPS (expanded polystyrene). The white isolation panels.

Question by bertus52x11   |  last reply


Is there a suitable substitute for parchment paper or a silpat baking sheet?

I live way up int he boondocks and want to try a recipe that calls for a silpat  sheet or parchment paper. Do you know of any reliable substitutes? The oven temp only calls for 200 degrees.

Question by bajablue   |  last reply


can I glue nylon sheets instead of sewing?

I want to make a tarp but don't want to stitch the waterproof (pu coated) nylon. Has anyone tried glue or welding with a hot domestic iron?

Question by stillalive   |  last reply


Where can I find white plastic sheeting?

Black or clear will not work, and that's all I can seem to come up with on google. White and black on opposite sides could work, but I can't find the size I need. Speaking of size, I need it to be 16 to 20 feet wide (and similar length, but rolls could be longer); most seem to be 100' for sizes that wide. One other requirement- reinforced sheeting will not work, I will need it to have a smooth surface when I'm done. Thickness matters less, but obviously the thicker the more expensive and I think 4 mL would work fine. What's it for you ask? Sorry, but it's a secret, at least for now.

Question by yokozuna   |  last reply


Gluing PVC sheet: Can you identify 'this' glue? Answered

I am gluing black pvc sheet - I presume its pvc, although not 100% certain, it has that distinctive 'new beach ball' smell to it.  I'm prototyping right now, and I want to do more stuff like this - and will likely post an instructable - trouble is it walks a fine line of 'family friendly'/sfw. Either way; I used Lepage Flexible Plastic adhesive.  It worked quite well, and has proven to be quite strong and flexible so far...Works like a contact cement, but stays very flexible.  No mention on the packaging exactly what type of glue it is though.  My question:  What type of glue is this?  Characteristic acetone volatile smell, works like contact cement.  Package says apply, let dry to touch ~10-30 minutes then close surfaces.  I find it's dry to the touch within a minute or three. (extremely dry climate + warm room I was working in). Rationale:  It's expensive, 4 bucks for 30mL, and I'd rather have a can-container to dip a brush in.  At the hardware store they have plain-ol contact cement, but the transparent/flexible aspect of this is must. Thanks in advance!

Question by frollard   |  last reply


Can someone post an instructable for a sheet metal brake made of wood?

Many sheet metal brakes were made of wood. I would like to know if someone knows how to make one.

Topic by blkhawk   |  last reply



can you use magnetic sheets in any laser or inkjet printer or just one or the other?

Or is there a printer that you should not use the magnetic sheets in?

Question by Gwendarlin   |  last reply