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Epoxy and screwdriver handle

Instruments / Epoxy
Added 12 comments
Hello dear readers and the inhabitants of our site!
In this article, Ben, author of Ben's Worx YouTube channel, will tell you about how he turned a boring screwdriver handle into a very interesting, and at first glance, a bit dangerous.

Similar article About the handle from the sleeves was earlier, but this master uses a slightly different filling technique.

Materials
- Two-component epoxy resin
- Sandpaper
- Abrasive polishing paste
- screwdriver
- masking tape
- Self-tapping screws, or cogs.

Instruments, used by the author.
- Lathe
- Chisels
- Glue gun.

Manufacturing process.
So, the author scored a few screws, a screwdriver with a not very aesthetic handle, and plastic for formwork.



He will also use such a two-component epoxy resin.

Then, using a glue gun, he makes the formwork. Before pouring its edges, it is desirable to process with a separator, for ease of disassembly, but the author decides not to. After the resin hardens, it simply breaks the plastic.



Mixes both components of epoxy resin, and fills a third of the height of the future shape. This is necessary so that the screws remain inside the handle, and not protrude beyond it.


The next day, after the first layer has hardened, spreads the screws on it, and fills the second layer twice as thick as the first. Then it collects all the screws in the central part, and leaves it for another day.



Secures the workpiece to a lathe, and begins processing. First aligns it to a cylindrical shape. At all stages of turning operations, it is extremely important not to overheat the workpiece. Epoxy resin when overheated loses its strength, becomes brittle. And individual brands of resins can change color and turn yellow.



After that, you can already set the handle the desired profile.



A chip has formed at the bottom end of the workpiece, it will have to be grinded and the upper part of the handle incised.


The following is the grinding step, starting with sandpaper P100, and up to P600.Final sanding is done with water added with P1000 paper.


Now the stage of polishing with abrasive paste. In the former Soviet Union, GOI paste is used.

It remains only to drill a hole for a screwdriver.


And, having protected the finished handle with masking tape, glue a screwdriver into it.



That's all, it turns out a very unusual handle on a screwdriver.



Thanks to the author for a simple but interesting way to improve the appearance of the tool!

All good mood, good luck, and interesting ideas!
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Added 12 comments

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12 comments
+2
Reply To quote A complaint
There are special injection resins sold in buckets. Of course, this is not a cheap pleasure in any case, but it’s definitely cheaper at times than pouring from the EAF)))
+3
Reply To quote A complaint
Cool idea. The screwdriver (donor) of course UG is complete, disposable. But the idea is interesting. Myself, I wouldn’t do such handles, of course, but as a thematic gift to a person of a certain profession, this is a very option. You can make a hammer with such a handle, for example, and give it to a tinsmith, a chisel, a carpenter or a joiner, replacing the contents with something themed. Yes, it will hang on a wall in a frame, but as for me a nice gift.
Guest Vita 0
Reply To quote A complaint
I did not like the idea of ​​making a product from epoxy, there are too many expensive consumables, there will be no repair left. The molding technology from this material in modeling has long been described in the technical literature, if you have something to add, you had to do it: heard something, you need to mix it in, somehow shake it, warm it up. For pens there are steel containers for carbon dioxide - do it.
Author +1
Reply To quote A complaint
Imagine .. facial expression will be great!
Guest Alexander +2
Reply To quote A complaint
Like a gift screwdriver, cool !!!
0
Reply To quote A complaint
The tool, in my opinion, should be primarily convenient, and only then beautiful. And here the handle seems slimy.
Author +2
Reply To quote A complaint
Epoxy resin is a durable material and perfectly tolerates tensile and compressive stresses. With such loads, its strength is comparable to concrete, and even exceeds it. However, it is more sensitive to bending loads and impacts.

If your product will not be subjected to large loads "at break", shock or extreme negative temperatures, then you do not need a plasticizer at all.

If the finished product must withstand severe mechanical loads, including impacts, or “breaking” forces using a lever without damage, it must have elasticity that will allow them to absorb. A good example is the bottom of an unfinished boat, the halves of which are at an angle to each other: while other structural elements do not reinforce it, walking along such a bottom loads the seam between the halves. The plasticity property necessary in such a situation is achieved by the addition of a plasticizer.

The most common plasticizers are DEG-1 resin and DBP (dibutyl phthalate).

- DBP (dibutyl phthalate) is the most common plasticizer, it is added to epoxy in small amounts, on average 2-5-10% by weight of the epoxy, and protects it from cracking during impacts and severe frosts. It is sold in packs of 200 grams (enough for 2-4 kg of resin), 500 grams (enough for 5-10 kg of resin), 1 kg and 5 kg. The main disadvantage of this plasticizer is that it does not mix well with the resin, and its correct use implies prolonged mixing with heating (more about DBP).

- DEG-1 itself is an epoxy resin, it is diluted with the main working one (for example, ED-20). The working concentration is 3-5-10%. At high concentrations, the cured resin will resemble rubber in consistency.DEG-1 is easily mixed with resin and therefore it is preferable to use it than DBP, except when full transparency is required (DEG is orange). Sold in packaging of 200 grams, 500 grams, 1 kg and 5 kg.

You can add a plasticizer to the resin in advance, when it is time for it and when it is convenient, and then store the resulting mixture - it does not lose its properties during storage. Such a mixture is called a modified resin, some commercial resins are modified and sold as such (for example, the well-known Epoxy 520).

From here.
0
Reply To quote A complaint
will break at the first strong screw
And if you try to pry something with such a screwdriver ... smile
0
Reply To quote A complaint
flooded high voltage boards and transformers
I do not state categorically
Well, I don’t know how anyone, but I ...
Just in the narrowest place, usually around the shaft, the material breaks. smile
Author +2
Reply To quote A complaint
There are normal resins, in which the plasticizer is also added by the third component. Here they are - in general, as a very hard, but elastic rubber to the touch. Break it - it is necessary to really try. smoke
We poured high-voltage boards and transformers with such tar. It keeps even at -45 degrees, terrible humidity and a bunch of filthy factors. It is important not to overdo it with a plasticizer - otherwise it will not freeze. Pull off from the board - only after heating above 150, when it begins to crumble.
+2
Reply To quote A complaint
Quote: Korolev
Well, I don’t know how anyone has it, but my screwdrivers as in photo No. 3 don’t live long, the plastic is flimsy! smile

That's for sure, and the epoxy will generally break with the first strong screw.
+2
Reply To quote A complaint
Well, I don’t know how anyone has it, but my screwdrivers as in photo No. 3 don’t live long, the plastic is flimsy! smile

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