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Re: Eclipse Radio
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Should be interesting to see what happens. All new for me. I'll look for
you on 40 meters Buddly.
54 minutes ago
Listen to Latest SolderSmoke Podcast
Sunday, October 19, 2014
Tribal Knowledge Video: Putting Screw Threads in Aluminium
http://youtu.be/LuqliWT1k5A
Thank you Giovanni Manzoni, whoever you are!
Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bumper stickers: http://www.cafepress.com/SolderSmoke Our Book Store: http://astore.amazon.com/contracross-20
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Bill!
ReplyDeleteYikes you have a hammer out next to the heat sink!!
Great Video Bill!
ReplyDeleteHi Bill,
ReplyDeleteYou chose a difficult size for your first use of a tap. As you found out, 4-40 taps are very fragile! A couple of tips to add to the Tribal Knowledge:
1. If you use a hand drill, it pays to drill the hole first with an undersize bit, and then enlarge it with the correct size bit. This is not necessary if you have a drill press.
2. A better lubricant for tapping aluminum is kerosene, or if that's not available you can use WD-40. The oil is better for tapping steel.
3. You found the correct method for turning the tap holder - the T handle is only necessary if you are using taps larger than about 1/4 inch.
The amplifier looks pretty nice - hope it works out OK.
73,
Shlomo, 4X4LF