Project: bbellamy   -  
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Builder Name:Brad Bellamy   -  
Project:   Vans - RV-7A   -   VIEW REPORTS
Total Hours:1851.6
Total Flight Time:
Start/Last Date:Jan 01, 2001 - No Finish Date
Engine:IO-360
 
Friendly URL: https://eaabuilderslog.org?s=bbellamy

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Oct 04, 2023     Battery Tray - (6.3 hours)       Category: Firewall
Researched conduit punches since the 2 1/2" conduit has a hole size of 1.950 which is closer to what I need. Decided to get the hydraulic kit in stock at Harbor Freight since it seemed better than similarly priced conduit punches on Amazon that only had 20 or 30 reviewers. My backup plan is one at twice the price on Amazon. Picked up the hydraulic conduit punch set and tested it on a piece of aluminum. Also tried to get a 3/4" hole saw at Home Depot and ones that small looked terrible so decided to use a step drill instead.

Installed the alternate static port switch in the panel.

Worked on the battery tray and battery hold down bar today. DWG 31A ES PC680 Install Kit. Cut the F-712C battery hold down bar to length and rounded the corners. Drilled out all the lightening holes using two sizes of step drills. Chucked the F-712B spacers in a drill press and used sandpaper on the drill table to clean up the ends and adjust the length to 7/8" + .002 to .003 inches. Marked and drilled all the lightening holes in the battery tray using a #27 pilot (holes not round of course) then a small step drill, then a larger step drill to make the hole 3/4 inches and then the new hydraulic punch to bring the 8 holes to final size. Worked great.


 


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