/diy/ - Do It Yourself

(wrong pic)

>>1470295
Maybe use the side of the file so it stays straight? Also, you can use sharpie ink like layout dye, so you can see what part of the metal you're cutting when you get started.

>>1470292
send me 3d model and I'll rough it out for you, as long as it helps keep the lights on.

Try filing both pieces at the same time with as much distance between them as practical

Anything further away to act as a height gage to keep the file level would help. Maybe a block of wood the right thickness.

>>1470324
I don't know what you mean by that, I don't see how using the side would make it go straight. As for the sharpie, I've tried using that but as it wears down you can no longer really see what you're filing down. Now that you mention it though, I could maybe try re-painting it often in between filings
>>1470345
Oh don't get me wrong it's not that bad, I just live with my parents and don't have a job or a way to make money for tools yet. I appreciate it though!
>>1470409
I've thought about this, maybe the effect would kind of cancel out if the high side of one part goes over the lower side of the other, but the motion of the pliers would most likely make it so they tended to not overlap properly when they are opened, I also have no way to clamp them down at the same time with my shitty ~5cm mini-vice
As for the block of wood, I think it would have the same problem as the vice, that is wearing down at the same time as the piece itself.

>>1470501
Have you retired filling in different directions?

There's more to filing than leaning on it in the push and letting up on the pull

good filing exercise. you're not gonna get them perfectly square. in the end you can always just put a shim or two in to compensate for wiggle.

I'd get relatively flat piece of thick metal... and c-clamps. And clamp it all down to the edge of your table.

Keep filing until you get a good enough fit.

Get a set of calipers/mic and measure around the surface to get a rough estimate.

You can also color over the surface with a marker(like you've done for your layout) and rub it with a flat piece of metal. High spots will rub off showing you your low spots, like they do for scraping.

Your first piece will never be perfect. So I'd just settle for a good enough fit, and shim the difference.

Update: I figured out how to make it flat, making it square is something else entirely. I know it sounds kinda ridiculous but it was basically a matter of clamping down the file and moving the piece over it instead, ensuring that the same face was always affected. This made the inner face somewhat misaligned with the outer surfaces but those are way easier to file down since they aren't critical to the movement of the pliers and I intended to file them down a bit anyway.
>>1470540
I was doing this all along but the problem was that my arm couldn't possibly move straight enough since I'm not a robot
>>1470567
I don't know how a shim could work for the hinge mechanism in a pair of pliers, it'd fall out unless I'm not understanding correctly

>>1470292
>drill press

Use it like a milling machine. You just need a jig for it and a milling bit that can handle the metal you are working.

>>1472868
DRILL CHUCKS ARE AXIAL LOAD ONLY NO EXCEPTIONS

>>1472889
a chuck is a chuck drills are axial, usually lacking shaft support for lateral stress. whereas a router is designed specifically for this purpose.
a good drill press, with plenty of bearing support on the shaft, can handle some slow milling, but not a plastic hand held disposable drill. it will break in half

https://www.youtube.com/watch?v=gIogUQB6SGo

>>1472920

>>1472921

>>1472922

>>1472923

>>1472920
tl;dr ?

plunge mill.

>>1472868
It can barely (if at all) drill a straight hole, let alone be used as a mill

>>1472868
It can barely drill a straight hole, let alone be used as a mill

>>1472917
The chuck itself can literally pop off because they're a tapered friction fit, it has nothing to do with the spindle itself.

>>1473046
Oh, well don't use that as a mill, it would break rather quickly.

>>1470292
Nice project. Keep us updated with the build and the finish tool

>>1473046

I normally wouldn't ask this but given how ghetto your setup is:

Are you center punching your holes?

>>1473046
>light duty shelf brackets
you know anon, there is this thing called an angle grinder. or for this particular case, you might find it easier to use a bench grinder and a jig. either way, its really the only way without getting a fitter to grind it flat for you. there is also no way you will get a nice fit with hand tools unless you're extremely autistic. although i hear there are indian children who can grind cylinder blocks to within a few thousandths of an inch using only sand paper and a dial gauge.

>>1470292
You may not be using the file correctly, or carding (cleaning out the grooves) often enough.
https://www.popularmechanics.com/home/tools/how-to/a18522/how-to-use-a-file-the-correct-way/
At Rolls Royce Aircraft, apprentices are given a rough sawn piece of steel, a try-square, calipers and a file. They have to make a 25mm cube with parallel sides in 5 days, or they're sacked.

>>1474863
Can confirm, I use my file cards extensively.

>>1473046
heh if you secured that better/had a better stand it would probably mill better than a drill press, or at least last longer

drill press chucks are usually taper/friction fit
hand drills are usually right hand screw on + left hand screw secured

>>1474887
Are centrifuges often dangerous? Why did that one explode?

>>1474896
https://www.aiha.org/get-involved/VolunteerGroups/LabHSCommittee/Incident%20Pages/Lab-Safety-Centrifuge-Explosions-Incidents.aspx

>>1474902
I wonder if there is any benefit to high air pressure for centrifuging applications?

>>1474905
I guess liquids don't compress anyway so I doubt it. How about a vacuum?