AeroElectric-List Digest Archive

Thu 01/08/09


Total Messages Posted: 7



Today's Message Index:
----------------------
 
     1. 05:08 AM - Re: Using TurboCad (Fox5flyer)
     2. 05:42 AM - Re: Re: Using TurboCad (Dale Rogers)
     3. 08:15 AM - Re: What's thoughts on Cool Amp? (Eric M. Jones)
     4. 09:31 AM - Re: Re: What's thoughts on Cool Amp? (Robert L. Nuckolls, III)
     5. 09:38 AM - Re: Re: Using TurboCad (MICHAEL LARKIN)
     6. 02:16 PM - Re: What's thoughts on Cool Amp? (Robert L. Nuckolls, III)
     7. 07:18 PM - System recommendations (jetech)
 
 
 


Message 1


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    Time: 05:08:02 AM PST US
    Subject: Re: Using TurboCad
    From: "Fox5flyer" <fox5flyer@idealwifi.net>
    I successfully downloaded express PCB, but am unable to find this symbols library to download. Can anybody help? Thanks, Deke docyukon(at)ptcnet.net wrote: > Vern I downloaded expressSCH It looks like something I can handle. I > also downloaded the symbols library, but am not able to open it. Tells me > that I don't have a program associated with it. And it doesn't tell me what > the format is. any ideas? Bill > > > > > Read this topic online here: http://forums.matronics.com/viewtopic.php?p=223503#223503


    Message 2


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    Time: 05:42:30 AM PST US
    From: Dale Rogers <dale.r@cox.net>
    Subject: Re: Using TurboCad
    Deke, It's a direct download link on Vern's freebee page. http://vx-aviation.com/#Free%20Stuff It's the line immediately below the link for ExpressPCB.com Right click on "Click here for a component library", then select "save to disk". It is a ".ZIP" file, so you need a program that unpacks Zip files. It used to be that WinDoze came with WinZip. Maybe it has to be purchase separately, now? I use PkZip. ** <http://vx-aviation.com/design/symbols.zip>*Dale R. COZY MkIV #0497 Ch. 12 * Fox5flyer wrote: > > I successfully downloaded express PCB, but am unable to find this symbols library to download. > Can anybody help? > Thanks, > Deke > > > docyukon(at)ptcnet.net wrote: > >> Vern I downloaded expressSCH It looks like something I can handle. I >> also downloaded the symbols library, but am not able to open it. Tells me >> that I don't have a program associated with it. And it doesn't tell me what >> the format is. any ideas? Bill >>


    Message 3


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    Time: 08:15:31 AM PST US
    Subject: Re: What's thoughts on Cool Amp?
    From: "Eric M. Jones" <emjones@charter.net>
    Silver plating copper is not a good idea. See: http://www.hmwire.com/plating.html from the site: Plating for Copper and Copper Alloys: Silver - ....When silver is plated over copper there can be an accelerated corrosion of the copper at pinholes or breaks in the silver plating. It is then susceptible to the formation of cuprous oxide when stored or used in a moist or high humidity environment. The corrosion is known as "red plague" and is identifiable by the presence of a brown-red powder deposit on the exposed copper...." -------- Eric M. Jones www.PerihelionDesign.com 113 Brentwood Drive Southbridge, MA 01550 (508) 764-2072 emjones@charter.net Read this topic online here: http://forums.matronics.com/viewtopic.php?p=223541#223541


    Message 4


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    Time: 09:31:13 AM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: What's thoughts on Cool Amp?
    At 10:13 AM 1/8/2009, you wrote: > >Silver plating copper is not a good idea. See: > >http://www.hmwire.com/plating.html > >from the site: > >Plating for Copper and Copper Alloys: > >Silver - ....When silver is plated over copper there can be an >accelerated corrosion of the copper at pinholes or breaks in the >silver plating. It is then susceptible to the formation of cuprous >oxide when stored or used in a moist or high humidity environment. >The corrosion is known as "red plague" and is identifiable by the >presence of a brown-red powder deposit on the exposed copper...." Which goes back to the simple-idea of "gas tightness" in a fabricated joint. To get corrosion you need an ingress location for an oxidizer (usually atmospheric oxygen but there are thousands of other oxidizing agents) usually dissolved in moisture. ALL pre-treatments one might incorporate for the purpose improving quality/longevity of a joint become moot when you mash and/or amalgam the two materials to be joined such that oxidizers and moisture are physically excluded from entering the joint. Probably the best thing one could do with bolted joint of less than pristine surfaces is wipe some silicone grease on one of the mating surfaces before mating. Any voids in the joint due to surface irregularities are prevented from being antagonistic havens for bad karma. At the same time, any place the two materials have been extruded a single piece of material, the pressures involve will squirt the grease out like toothpaste. Again, goops and goos pre-joining cannot replace or even do much to enhance good craftsmanship and preparation in making up the connection. Bob . . . ----------------------------------------) ( . . . a long habit of not thinking ) ( a thing wrong, gives it a superficial ) ( appearance of being right . . . ) ( ) ( -Thomas Paine 1776- ) ----------------------------------------


    Message 5


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    Time: 09:38:42 AM PST US
    From: MICHAEL LARKIN <mlas@cox.net>
    Subject: Re: Using TurboCad
    To the new and first time builders: I had been out of the CAD world since college in the 80's and 90's. I would dabble with Auto-CAD when I had access. A few years ago I started to do panel layouts for builders and purchased Turbo-CAD. At the same time I was doing all my custom aircraft schematics with ECB, so I have used most of the programs that are being written about. Here is my take for what ever its worth. First i almost exclusively us CAD for 2D work, my ability in 3D is minimal. So for you accomplished 3D guys don't read any further. :) In order to use a CAD program efficiently you have to have a good foundation on how to setup the page to start with. Second you have to know how to use the tools available to you. It is very difficult to get anything useful out of Auto-CAD or Turbo CAD without taking a course or reading the book. What I'm saying is that it is not easy if you've never been exposed to this type of drawing. Now for ECB things are a bit easier. This is a simple program for doing 2D drawings. The program is very limited but I find it works well for wiring schematics. Its limited number of functions makes it easy to get a handle on using well. For the accomplished CAD person it is very slow when you are use to using some of the more complex tools. ECB also has limited ability on importing and exporting so building the library is much more time consuming. I would recommend ECB for the first timer and if you like, the transfer to Turbo-CAD is much easier after using ECB for a while. I hope this helps the first time builders out there. One last thing, Turbo CAD comes in many versions. Some are crap, for example TurboCAD ver.2 for MAC is junk. But ver.10 and above for the PC is very much like a high end CAD program. Mike Larkin On Jan 8, 2009, at 6:37 AM, Dale Rogers wrote: > > Deke, > > It's a direct download link on Vern's freebee page. > > http://vx-aviation.com/#Free%20Stuff > > It's the line immediately below the link for ExpressPCB.com > > Right click on "Click here for a component library", then select > "save to disk". > > It is a ".ZIP" file, so you need a program that unpacks Zip files. > It used to be that WinDoze came with WinZip. Maybe it has to be > purchase separately, now? I use PkZip. > ** <http://vx-aviation.com/design/symbols.zip>*Dale R. > COZY MkIV #0497 > Ch. 12 > * > > > Fox5flyer wrote: >> > >> >> I successfully downloaded express PCB, but am unable to find this >> symbols library to download. Can anybody help? >> Thanks, >> Deke >> >> >> docyukon(at)ptcnet.net wrote: >> >>> Vern I downloaded expressSCH It looks like something I can >>> handle. I also downloaded the symbols library, but am not able to >>> open it. Tells me that I don't have a program associated with it. >>> And it doesn't tell me what the format is. any ideas? >>> Bill >>> > >


    Message 6


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    Time: 02:16:13 PM PST US
    From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
    Subject: Re: What's thoughts on Cool Amp?
    >Yes. But it is no more work than wiping on the magic >potion. Copper is soft, and mushes easily. Under the entire ring >terminal, you only need as much surface area to be in intimate >contact as the cross-sectional area of the wire to maintain the same >line resistance. Remove a few properly torqued screw from plain >copper ring terminals and see how much deformation there is. Hint: >there' s a LOT. Also note how the area under the fastener is bright >and shiny, while the outside edges are gunky and corroded. My >rotary engine uses copper seals under banjo fittings, because it >will deform and seal up air tight. Lycoming spark plugs use a >copper washer for the same reason. No silver dust needed. > >Make no mistake. I don't think the silver dust will do any >harm. But from my experience, I can't believe that it is more than >a tedious exercise with no payback. YES! One of the points I hit on in the weekend seminars is the value of force/area=pressure where the act of tightening a nut down on a malleable copper terminal literally deforms the surface to achieve "oneness" between mating surfaces. I like to tie a ground terminal down to the airframe with no smaller than a 8-32 fastener having a metal locknut to keep the pressure high over the lifetime of the joint. Once the joint is properly made, the vulnerabilities of time and environment are at the parting line which is very small and offers little risk of being breached. These are cases where physically squashing two items into intimate contact with each other is a good thing. Bob . . .


    Message 7


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    Time: 07:18:20 PM PST US
    Subject: System recommendations
    From: "jetech" <av8tor@hughes.net>
    I am looking at the Z-11 and Z-13 schematics and would like some opinions on which route to take. The plane is a PA-22, we would like to replace the vacuum driven horizon and compass along with the airspeed, T&B, rate of climb and altimeter with a Aspen PFD. We will add a GPS, transponder, and comm and retain the stock mechanical engine instruments, mags, mag switch and push to start. The generator will be replaced with a Plane Power SAL12-70 alternator and R1224 regulator. The starter will be replaced with a Skytec starter. The plane will be VFR but it would be nice to have the voltmeter, GPS, transponder, comm and maybe the PFD (even though it has an internal backup battery) on an E-bus. The Z-11 looks a little more practical for this application. Am I missing anything if I use the Z-11 and substitute the Plane Power Alternator/regulator circuit and use the Z-13 push to start? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=223645#223645




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