DIY Aluminum Extrusion Fence #4: Confession

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Blog entry by rhybeka posted 07-13-2015 11:37 PM 2676 reads 0 times favorited 4 comments Add to Favorites Watch
« Part 3: Last steps - brake installation and other stuff... Part 4 of DIY Aluminum Extrusion Fence series Part 5: Fine Tuning begins.... »

drilling the hole for this brake makes me nervous. If I mess it up, I’ll have to order a new linear bearing…. they aren’t expensive but they aren’t cheap. And I’m just mechanically challenged…I’m still a new woodworker…but I know nothing about metal. Well – except how to put holes in it. And I really need this to work on the first shot (which as of right now, I haven’t had enough practice at stuff to get it right on the first try!) but not much confidence that it will. I have more of a reputation of getting frustrated and pulling the ‘just do it’ and being wrong and kicking myself for it later than being right. But I also need to move this project towards completion so I can use my saw again!

-- Beka/Becky - aspiring jill of all trades, still learning to not read the directions.

4 comments so far

View tyvekboy's profile


1960 posts in 3617 days

#1 posted 07-14-2015 12:48 AM

When drilling in Aluminum I was told that if you use kerosene as a lubricant it will go better.

Maybe someone else can confirm this.

You can also google:

“drilling aluminum with kerosene as lubricant” and you will find references on this topic.

-- Tyvekboy -- Marietta, GA ………….. one can never be too organized

View DIYaholic's profile


19893 posts in 3279 days

#2 posted 07-14-2015 01:53 AM

How big of a hole… ie, what size drill bit???

One thing I do, when I need a hole drilled precisely, in metal….
Is to put painter’s tape, so as to accurately mark the centerpoint of the hole.
I then use a pointed punch, to “dimple” the metal, at that center point.
I will use the smallest drill bit I have, for the initial hole.
I place the bit in the dimple, then slowly engage the trigger….
You don’t want the bit to wander & drill “off center”.
Then use progressively larger bits, to enlarge the hole.

-- Randy-- I may not be good...but I am slow! If good things come to those who wait.... Why is procrastination a bad thing?

View jumbojack's profile


1689 posts in 3228 days

#3 posted 07-14-2015 05:05 AM

Lube the bit often. Most any thin oil will do. Keep it wet..

-- Made in America, with American made tools....Shopsmith

View rhybeka's profile


4754 posts in 3725 days

#4 posted 07-17-2015 04:33 PM

I did it the other night – twice actually but the hole in the wrong side is hidden :D still doesn’t slide easily at all tho. Have some options to try either tomorrow or sunday

-- Beka/Becky - aspiring jill of all trades, still learning to not read the directions.

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