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jakecrause(at)yahoo.com
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 Posted: Tue Sep 01, 2009 7:03 pm Post subject: Quality of pre-drilled holes |
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The placement of the pre-punched holes on my 801 rudder skins don't seem to be drilled very accuratly. 80% of the holes in a line are laid out on a common center line but the other 20% are offset by a couple of millimeters. It's not caused a real problem but I'm curious if this is par for the course? It's not a big deal but I expected more accuracy from CNC punched parts is all.
Jake
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DKrummel
Joined: 02 Nov 2008
Posts: 7
Location: Independence Airpark Oregon
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| Posted: Tue Sep 01, 2009 8:39 pm Post subject: Quality of pre-drilled holes |
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Hello Jake -- I am in the midst of building an 801. So far it has been a bad dream - but not quite a nightmare. The stories I can tell you. Keep trudging - it is still a great plane once it is finished.
Dennis Krummel
[quote][b]
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Fly Friendly - Fly Safe
Zenith 801 / Lycoming IO360 / MT 3 Blade Prop |
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carlossa52(at)gmail.com
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| Posted: Wed Sep 02, 2009 5:48 am Post subject: Quality of pre-drilled holes |
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Hello,
Not my personal experience (building from plans), but I am told ZAC will replace bad parts at no charge.
May be worth a phone call...
Carlos
do not archive
2009/9/1 Jake Crause <jakecrause(at)yahoo.com (jakecrause(at)yahoo.com)>
[quote] The placement of the pre-punched holes on my 801 rudder skins don't seem to be drilled very accuratly. 80% of the holes in a line are laid out on a common center line but the other 20% are offset by a couple of millimeters. It's not caused a real problem but I'm curious if this is par for the course? It's not a big deal but I expected more accuracy from CNC punched parts is all.
Jake
[b]
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n801bh(at)netzero.com
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| Posted: Wed Sep 02, 2009 5:49 am Post subject: Quality of pre-drilled holes |
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Jake. A proper CNC punched skin should be more accurate then you can measure. I would take a fine line sharpie and draw a line through the good holes and project that out to the bad holes. Take a pic or two and email it to Zenith. They are wanting to produce a quality kit and feedback like this only helps them get better. My guy feeling is either the sheet slipped during the punching process or the program was incorrect.
do not archive
Ben Haas
N801BH
www.haaspowerair.com
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jakecrause(at)yahoo.com
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| Posted: Wed Sep 02, 2009 6:24 pm Post subject: Quality of pre-drilled holes |
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Thanks guys, I appreciate the responses. So far I've only noticed a problem with the rudder spar (which they replaced) and both rudder skins (which are not bad enough to be replaced). I'll be starting the HS in a couple of days. I'll be keeping a close eye on the parts and if I run into any inconsistencies I'll let the company know.
Jake
From: "n801bh(at)netzero.com" <n801bh(at)netzero.com>
To: zenith701801-list(at)matronics.com
Sent: Wednesday, September 2, 2009 9:12:54 AM
Subject: Re: Quality of pre-drilled holes
Jake. A proper CNC punched skin should be more accurate then you can measure. I would take a fine line sharpie and draw a line through the good holes and project that out to the bad holes. Take a pic or two and email it to Zenith. They are wanting to produce a quality kit and feedback like this only helps them get better. My guy feeling is either the sheet slipped during the punching process or the program was incorrect.
do not archive
Ben Haas
N801BH
www.haaspowerair.com
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n85ae
Joined: 14 Mar 2007
Posts: 403
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| Posted: Thu Sep 03, 2009 6:16 am Post subject: Re: Quality of pre-drilled holes |
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| DKrummel wrote: | Hello Jake -- I am in the midst of building an 801. So far it has been a bad dream - but not quite a nightmare. The stories I can tell you. Keep trudging - it is still a great plane once it is finished.
Dennis Krummel
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I would second this! I'm building my doors, and while I can certainly figure
it out at this point (after building the rest of the kit for practice). The process
is look at the pics, manual, drawings - Figure out a revised plan in my
mind. Then build one door hoping it works, and then build the second
based on the learning experience from the first.
Most of Zenith's 801 instructions will not work as written, so I only use them
as a rough guide to get started.
Jeff
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