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A real basic machining question
Posted: Tue Aug 13, 2024 10:13 pm
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?
Re: A real basic machining question
Posted: Tue Aug 13, 2024 10:54 pm
by GrapeApe
Not from me, sorry. I wouldn't have a clue
Re: A real basic machining question
Posted: Tue Aug 13, 2024 11:47 pm
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.
Re: A real basic machining question
Posted: Wed Aug 14, 2024 3:50 am
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?
Re: A real basic machining question
Posted: Wed Aug 14, 2024 4:05 am
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.
Re: A real basic machining question
Posted: Wed Aug 14, 2024 4:07 am
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
Re: A real basic machining question
Posted: Wed Aug 14, 2024 4:11 am
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
Re: A real basic machining question
Posted: Wed Aug 14, 2024 4:17 am
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.