Gallery, Projects and General > The Design Shop

Truing the edges of a plate

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fluxcored:
Just do'nt have the stamina for manual work anymore - find that I tire easily and I'm not that old!!

I'll order myself an end mill tomorrow.

Will take some pics of my slotter and the section of plate that I want to use tonight.

Cheers.

kwackers:

--- Quote from: 75Plus on August 23, 2010, 11:07:00 AM ---And.... if you really want a workout, you can always resort to draw filing. That's how the old timers did it.

Joe

--- End quote ---
I'm a big fan of draw filing, often quicker than setting up the job in a mill and a lot less chance of ending up under-size (at least if you're me).
You can get a lovely finish too, people use all sorts but for me a bit of WD40 sprayed on the file and the occasional wipe with a wire brush to get the crap out works wonders.

I'm not good enough to get a perfectly flat surface but I can get pretty close.

raynerd:
When I have tried draw filing on my clock frame, I found I end up with a grated looking edge rather than a smooth flat edge. Obviously wasn`t doing it correctly.... Video : How to "Draw File" anyone?

kwackers:

--- Quote from: craynerd on August 23, 2010, 02:17:23 PM ---When I have tried draw filing on my clock frame, I found I end up with a grated looking edge rather than a smooth flat edge. Obviously wasn`t doing it correctly.... Video : How to "Draw File" anyone?

--- End quote ---
You're allowing the file to slip sideways - so that the teeth 'track'. Just keep it flat and pull it back towards you keeping it at right angles and with no sideways movement.
You should be using sharp files and won't need that much pressure - resist the temptation to apply it...

fluxcored:
Thank you to all who has advised me.

I plucked up the courage to do some milling in the lathe using a 14mm end mill.

I just trued up the edges to make 10mmX10mm blocks out of aluminum which I hacksawed from an old thermal printer head, over the weekend.

I clamped the blocks in my toolpost, not having finished my milling plate yet.

It was a very satisfying experience!  :thumbup:

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