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RV-7A Construction Log
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Date:  4-15-2009
Number of Hours:  0.50
Manual Reference:  
Brief Description:  F-705 Bulkhead - Make slot in angle

I was overly anxious to try my new two axis sliding table and end mills for making this slot. I positioned the parts, lowered the end mill, and started turning the table sliders. Oh @$%#%^@!$%. Something in the Chinese table had some play in it and it allowed the cutting bit to move sideways and ruin my slot. So on the second slot I just used my little grinding bit and gently removed the material in between the two holes. This worked much better and resulted in an almost perfect slot.

I went back and examined the sliding table and end mill setup. I think I could have done better by tightening the table down more, and by taking very little bites of material off at a time, rather than taking a large bite with the end mill.

I don't know if this enlarged hole will matter. Seems like it might not matter. And you don't rivet this one now anyway. So I'll finish drilling this and prepare to use it, and later when it gets rivetted I'll decided if I want to make a new one.
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Drill press and sliding table with end mill

Drill press and sliding table with end mill

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Hand grinding bit

Hand grinding bit

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One good slot.  One bad slot.

One good slot. One bad slot.

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