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What are these screws called?
What are these screws called?
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Old 14th September 2020, 04:02 AM   #31
K-amps is offline K-amps  United States
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Join Date: Nov 2003
Location: Indiana
Quote:
Originally Posted by Cal Weldon View Post
I don't see where anyone has paid attention to this.
This is what I will use as a search term. Thanks guys!

I also appreciate the tips on Tapping... just not my thing at the moment.
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Old 14th September 2020, 05:32 AM   #32
oohms is online now oohms  Australia
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Join Date: Feb 2010
Location: Melbourne
Tapping aluminium is super easy and very consistent after a little practice. Just make sure to use the right size drill, then wind the tap in and out, brushing the excess from the channels in the tap and using cutting/tapping fluid (or olive/canola oil) while doing so

After a while you can freehand both the drilling and tapping with a cordless drill

With self tapping screws you are entirely dependent on the quality of screw to both easily tap the hole and not snap off
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Old 16th September 2020, 01:40 AM   #33
K-amps is offline K-amps  United States
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Join Date: Nov 2003
Location: Indiana
Good advice.

Rookie question, what is the percentage of success with or without cutting oil?
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Old 16th September 2020, 07:46 AM   #34
Vovk Z is offline Vovk Z  Ukraine
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Join Date: Oct 2011
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Quote:
Originally Posted by K-amps View Post
Rookie question, what is the percentage of success with or without cutting oil?
There is no need at all to work (to tap) without some lubricant (I use an alcohol or an oil for aluminium), because it became harder and quality may go out of your control.
I don't like oil (because it is oily ) so I use an alcohol with an aluminium - it leaves no oily trace. (I use the same liquid as for cleaning the PCB - a mixture of an isopropil alcohol and a clean gas/gasoline).
There is of cause some difference between an oil and an alcohole but for DIY-tap it works about the same.

Last edited by Vovk Z; 16th September 2020 at 07:54 AM.
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