A real basic machining question

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Japhy
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A real basic machining question

Post by Japhy »

I have trouble hand filing metal parts.
The file tends to catch the leading edge of the work.
Little pressure, secure piece in the vise.
Any hints to get a flat uniform result?
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GrapeApe
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Re: A real basic machining question

Post by GrapeApe »

Not from me, sorry. I wouldn't have a clue
"Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it." - Samuel Clemens (aka Mark Twain)
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CPJ 2.0
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Re: A real basic machining question

Post by CPJ 2.0 »

I can’t vouch for this video because I haven’t used it or watched more than about 30 seconds but it appears it may be OK


https://youtu.be/uS96OPL0KR0?si=3SoFBH_35cz3jkqw






The other answer is……practice.
“The shepherd slaughters more of the flock than the wolf ever will.”
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Bigslug
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Re: A real basic machining question

Post by Bigslug »

Less coarse file?

Even contact across the whole surface before pushing forward?

A little more pressure toward the front of the file?

Deliberate destruction of expendable items figuring this out?
WWJMBD?

I believe we should stand on Ceremony. . . while our friends handcuff the sanctimonious little prick and take him away.
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CPJ 2.0
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Re: A real basic machining question

Post by CPJ 2.0 »

If you’re wanting to keep something flat, start flat. Lay the file….flat on the work. Then move. Don’t try and move and put the file on at the same time. You’re doing two things at once. You’re gonna just where you don’t want to.

And keep in mind, filing is a skill. Once that takes time to master. I say skill, it’s more of an art form.
“The shepherd slaughters more of the flock than the wolf ever will.”
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CPJ 2.0
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Re: A real basic machining question

Post by CPJ 2.0 »

This is a cool swivel vise clamp thing build, but skip to the 24 minute mark to watch a master with a file at work.

https://youtu.be/NjUeeTj_8tU?si=YvhUMuW5FUJd2yqy
“The shepherd slaughters more of the flock than the wolf ever will.”
Elk Creek
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Re: A real basic machining question

Post by Elk Creek »

I start by laying the file on whatever I’m doing and holding that position for a few moments. Take it off and repeat. This allows me to get a feel for what I’m doing. I also color with a marker or the like to see what I have taken off and what’s left. I make guides with tape if I’m filing in an angle or a stop to go no further. Use good files and keep them clean. Just things I do
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CPJ 2.0
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Re: A real basic machining question

Post by CPJ 2.0 »

Along with keeping them clean, yes, for sure. Especially on the final passes. Clean it. Make a swipe. Clean it. Make a swipe. Any chips left in the teeth will scratch the surface. Not a big deal if you’re just hogging material.
Get some chalk. Rub in into the file teeth. Helps keep it from clogging so quick. And get a file card for cleaning.

https://a.co/d/81hKbdr



Some fussy folks freak out on file cards. “Those will damage the file! You need to pick out the chips with a piece of brass!”
Yeah no. They won’t hurt a file. And if they did, guess what?
Files are DISPOSABLE. If you have one that doesn’t cut like you think it should, PITCH IT.
“The shepherd slaughters more of the flock than the wolf ever will.”
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