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11

I have always found one of the appeals of mosaic to be creating non-uniform / random shapes for your art. Both of these options can help capture that. Score the card If you score one surface of the card, with something like a craft knife, you should be able to make it snap along the score line. In general straighter will be easier to snap off. By all means,...


9

It depends what you want out of the repairs. If you're looking for longevity and quality of repair, an epoxy (resin) is your best bet. They tend to create the best seams and are difficult to break. The downside of these is that you get one shot - getting it wrong quite often either gets the parts stuck in the wrong place, or you very messy. Some epoxy glues ...


7

Back in my University days I worked at a place that used to modify vending machines to allow 12oz cans to be vended in 16oz machines. They did this by adding ABS blocks to the racks using a very liquid substance that lightly melted the ABS and allowed the bond to form. It was a very tight bonding. The closest I've found to that, and probably your best bet ...


6

Many adhesives will work on plastics. With toys and things like this you first want to consider the age of people handling them. If a child will chew on it, be sure to avoid resins that are known to be toxic. Avoid superglue and low-surface-tension adhesives. "low surface tension" means that it slips down into cracks easy. Sometimes people call this a "...


6

It's worth noting, if you feel like taking a trip to your local hardware store, that they make specialty blades that fit boxcutters. Some of these are designed for laminate. Most likely, the blades that came in your boxcutter are ok for opening boxes, plastic packagine etc. However, you can buy some designed for cutting laminate, PVC, etc. Look for blades ...


6

Kind of off the wall, but here goes: Fill the bottle with water and put it in the freezer until the water becomes solid ice. (best not put the cap on in order to allow for expansion of ice. Using your drill press or hand held drill make your hole.


6

I think you might be close to a solution by using heat, but consider to combine a source of heat with a cutter blade. This will allow you to use the tip of the blade to have a minimal impact on the surface, while providing the means to puncture the surface. You may find that you can re-heat the blade for each cut and use this method for the entire opening. ...


5

Plastic bottles are easy to cut with a sharp scissors. Before cutting your circle, draw your cutting line onto the bottle with a marker. Before you can cut with a scissors, you have to pierce the plastic with a stiletto or knife. That piercing will be messy, so pierce in the center of your marked circle. Then use the scissors to cut from the center to the ...


5

I have a plastic chair in my workshop. It is spattered with acrylic paint which is very hard to remove. I suggest you use good quality exterior grade acrylic paints. I have painted concrete ornaments with student grade acrylics and then sprayed them with automobile gel coat. It protects the paint and gives a shiny surface.


5

Short answer: you are using the wrong technique. Long answer: The light travels from the LED strip in straight lines through the acryllic and emerges at the top of the acryllic plate. In order to illuminate the pattern, the light beams have to be deflected into your eyes. Engraving the surface does just that: it puts tiny scratches into the surface that ...


5

As your objective appears to be the requirement to present a product, you aren't asking for production methods. This suggests that a suitable method is to use 3D printing, specifically resin printing, to create the enclosure. 3D resin printing is nearly layer free (strong magnification required) and presents a smooth professional appearance. It can be ...


5

There are lots of links that describe toxic fumes from burning or laser-cutting acrylic. Apparently, the risk also applies to the molten plastic, as you would encounter with 3D printing or molding. According to Everything You Need To Know About Acrylic (PMMA): ...fumes from 3D printing with acrylic or from the molten material used during injection ...


5

That looks like lichen. On plastic, you can probably remove it with just soapy water and a bristle brush or nylon scrubbing pad (but don't use something abrasive enough to scratch up the plastic or it will provide more surface for the next round of it to adhere to). It may help to first spray the lichen with vinegar, full strength with a little added soap ...


4

You're probably looking for acrylic. Computer case manufacturers often use acrylic. For a recent example, the Thermaltake core P5 atx case uses acrylic. Also, according to this datasheet acrylic has higher optical clarity than polycarbonate and can be restored to full clarity by polishing. Also, acrylic sheets can be sourced easily, can be cut with a ...


4

Yes, if you overheat it, most thermo-plastics will give off dangerous gases when heated above a certain temperature. For bending, you need somewhere between 100C - 170C (212°F - 338°F). Cast acrylic needs higher temperatures than extruded (due to the higher molecular weight), and thicker sheet need slightly higher temperature than thinner. But do ...


4

Because the plastic is quite thin, it will not hold up well to a rotary cutter such as a hole saw or similar cutter. A trammel type cutter would likely be much worse. The only way I can think to make a cutter of that type to function properly would be to create a sandwich of some sort, quite impractical in the case of a bottle. Filling the bottle with sand ...


4

You can try, but first you will want to degrease the plastic with a little rubbing alcohol (and prime it). The paint will not dry quickly unless you add a siccative like China dryer to the oil to thin it out. That said, I doubt that your airbrush is designed for oil paints. If you do want to risk ruining and clogging it constantly, make sure to really make ...


4

I'd recommend you head to a camping supply store (like REI or Academy ) and pick up some tent repair tape. Its usually rip-stop nylon with adhesive on the back. It will reinforce the pvc so you can add buttons etc.


4

PVA is one common type of wood glue (one global example is Gorilla wood glue), though the product in the video is the cheaper builder's PVA which can be mixed into plaster, or diluted and used as a primer or dust-reducing coating for concrete. I'd expect it to be a little thinner than PVA wood glue, but the latter can be diluted with water. PVA is sold as ...


4

I suggest using sheets of clear PVC: It's non-adhesive, a lot more durable than the more common polypropylene sheets (like the perforated 'punched pockets'), but still supple. They mostly come in standard sizes, like in the image, pre-folded and stitched to accommodate certain book size standards (as an example, the page from which I sourced the image has ...


3

Please do not soak the pickguard in peroxide! That's highly likely to remove or damage the permanent marker signatures since peroxide is a bleaching agent. You might be able to carefully clean around the signatures using a mostly dry small tool with peroxide or other cleaning solution on it, but even then you would run the risk of some of it bleeding over ...


3

I have a 2.5 gal pot and use my 21 gal 125 psi compressor. It works with no problem at all. For a smaller and less pricey solution, I would go with at least an 8 gal 125 psi compressor, as it looks like it can provide the pressure for the pot. From the specs I see one like that would give you 5.5 CFM @ 40 PSI. My 2.5 gal pot requires 4.0 CFM @ 40 psi. You'll ...


3

Many plastics, including ABS can be chemically welded. The result will be as strong as the original plastic. Thin parts may not have much surface area to join, and you may see a visible "melt" line at the repair. Joining broken parts is essentially the same process as building things with a material like Lucite. You put the pieces together with a tight-...


3

In the U.K. we often join household plumbing pipes together with a solvent glue something akin to the plastic model aircraft glue. It bonds the joint in seconds and causes a melting and fusing of the plastic local onto the break. I know from personal experience (and the wording on the back of the pot I have) that it's excellent at joining ABS plastics. The ...


3

I did not tried it but that's how I would proceed: For the cut: (to make a pan flute) Solution 1: My guess is that cutting the straw with a heated knife will be very messy and gives a bad result. So I'd simply use a serrated knife. Something like this one: and saw the straw with it. Pay attention to really use the sawing part of the knife (this is why ...


3

I did a quick search for "pearlescent acrylic sheet" and it appears there is at least one resource for this type of product. Various contours and colors are available from Acrilex and they all look quite fabulous! I didn't capture all 44 available patterns and there is at least one that resembles the panel in the photo you've linked. I found a couple other ...


3

What you are seeing may have been constructed at the gym, but they would have used a device available to anyone. It's likely called a badge laminating machine or some combination of those terms. Amazon sells a number of designs encompassing various size capacities. This is just one of many available. This particular model has a production restriction in ...


3

I always recommend two-component epoxy for this kind of bond (PE plastic with laminated wood), however if you have a lot of keys it can get pretty expensive (and messy). A cheap approach would be to use plumbing silicon (the kind in the tubes). Put a drop in the back of the key and press it firmly onto the board. It should hold for a long time!


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