Re: edge connectors vs. terminal block - My Two Cents
Puckdropper
If you replace the leads with the copper traces on the PCB and the terminal strip with screw terminals, you've basically got the solution I brought up.
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However, there are areas where wiring such a tortoise would be difficult at best. (Especially if you use a screw terminal that tightens from the side.) In those cases, leads to the terminal strip would probably be a good way, especially if upgrades or changes are planned. In such an area, I'd probably wire the tortoise first, then go about installing it. If I thought I'd need the switched terminals later, I'd probably drop leads and simply cut them to a reasonable length. One issue with dropping leads to a terminal strip is that it takes up space. In one area of the club layout, there's wiring for two levels, plus the switch machine controller, a staging yard, signals, and Loconet (and more) all passing through a 2' wide section of layout. Dropping leads to a terminal strip would just add to the clutter. Puckdropper
--- In WiringForDCC@..., "Glenn" <ghazel@...> wrote:
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Re: edge connectors vs. terminal block - My Two Cents
I haven't followed this thread until now.
I get the idea the edge connector is for the ease of wiring the Tortoise. I don't think the Tortoise was initially intended to be used with an edge connector. I agree soldering to the tortoise after it is installed can be a problem. Instead of an edge connector or some other Rube Goldberg contraption, why not wire the Tortoise with leads, then to a terminal strip or to an 8-pin male/female connector? Glenn -----Original Messages----- Subject: RE: [WiringForDCC] edge connectors vs. terminal block I second Don's comment, the Tortoise is a great device and rock solid. I have some over 10 years old and still going strong. I always solder my wires to them. David It's not the Tortoise that is the issue, it is the connectors some folks try to use with it. DonV Not meaning to be flip here at all, but if Tortoise machines are such a source of problems, why use them at all? Jack. The thickness of the PCB board is undesized allowing a lose mechanical connection. The board does not have tight fit like a Digitrax board has in it edge card connector for reference. Mark
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Re: edge connectors vs. terminal block
Puckdropper
If you take a look at the guy's web page, he suggests three Digikey part numbers. Even if you don't order from Digikey, it's worth looking up the parts to get the exact specs.
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I'm not a hockey ref, but do play one on the bench (as we all do *g*). "Puckdropper" comes from a time when I was too young to skate in my dad's league, but they could let me drop the puck after a goal. Puckdropper
--- In WiringForDCC@..., "mgstewart" <mgstewart@...> wrote:
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Re: edge connectors vs. terminal block
Puckdropper
I actually just ordered the parts that the website said were compatible. However, out of curiosity I did go out and measure. Inside-to-inside was .141", while outside to outside was .192". That means an average (should be close to center-to-center) of .160".
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The connectors I bought were a little tight (.138") but not too bad. Puckdropper
--- In WiringForDCC@..., "Vollrath, Don" <dvollrath@...> wrote:
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Re: edge connectors vs. terminal block
Jack Hofmockel <jack.hofmockel@...>
Okie-dokey! Thanks for the response!
Jack.  "History is written by the winners." - anon. "Half of writing history is knowing how to hide the truth." - Capt. Mal Reynolds ________________________________ From: davidklemm7511 <davidklemm7511@...> To: WiringForDCC@... Sent: Friday, August 3, 2012 12:09 PM Subject: RE: [WiringForDCC] edge connectors vs. terminal block  I second Don's comment, the Tortoise is a great device and rock solid. I have some over 10 years old and still going strong. I always solder my wires to them. David Sent from my Galaxy S®III"Vollrath, Don" <dvollrath@...> wrote: Jack, It's not the Tortoise that is the issue, it is the connectors some folks try to use with it. DonV -----Original Message----- From: WiringForDCC@... [mailto:WiringForDCC@...] On Behalf Of Jack Hofmockel Sent: Friday, August 03, 2012 4:01 AM To: WiringForDCC@... Subject: Re: [WiringForDCC] edge connectors vs. terminal block Not meaning to be flip here at all, but if Tortoise machines are such a source of problems, why use them at all? Jack. "History is written by the winners." - anon. "Half of writing history is knowing how to hide the truth." - Capt. Mal Reynolds ________________________________ From: Mark Gurries <gurriesm@...> To: WiringForDCC@... Sent: Thursday, August 2, 2012 10:32 PM Subject: RE: [WiringForDCC] edge connectors vs. terminal block I am glad it works for you but it hasn't for others who have done exactly that it still fails. You cannot get around the fact the tortoise board contact are not gold plated allowing oxidation. The thickness of the PCB board is undesized allowing a lose mechanical connection. The board does not have tight fit like a digitrax board has in it edge card connector for reference. On 8/2/12 at 6:43 PM, m.maginness@... ( Max Maginness) wrote: And the main reason the edge connectors are flaky is that theBest Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: www.markgurries.com ------------------------------------ http://www.WiringForDCC.comYahoo! Groups Links [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]
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Re: edge connectors vs. terminal block
David Klemm
I second Don's comment, the Tortoise is a great device and rock solid. I have some over 10 years old and still going strong. I always solder my wires to them.
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David Sent from my Galaxy S®III"Vollrath, Don" <dvollrath@...> wrote: Jack, It's not the Tortoise that is the issue, it is the connectors some folks try to use with it. DonV
-----Original Message-----
From: WiringForDCC@... [mailto:WiringForDCC@...] On Behalf Of Jack Hofmockel Sent: Friday, August 03, 2012 4:01 AM To: WiringForDCC@... Subject: Re: [WiringForDCC] edge connectors vs. terminal block Not meaning to be flip here at all, but if Tortoise machines are such a source of problems, why use them at all? Jack. "History is written by the winners." - anon. "Half of writing history is knowing how to hide the truth." - Capt. Mal Reynolds ________________________________ From: Mark Gurries <gurriesm@...> To: WiringForDCC@... Sent: Thursday, August 2, 2012 10:32 PM Subject: RE: [WiringForDCC] edge connectors vs. terminal block I am glad it works for you but it hasn't for others who have done exactly that it still fails. You cannot get around the fact the tortoise board contact are not gold plated allowing oxidation. The thickness of the PCB board is undesized allowing a lose mechanical connection. The board does not have tight fit like a digitrax board has in it edge card connector for reference. On 8/2/12 at 6:43 PM, m.maginness@... ( Max Maginness) wrote: And the main reason the edge connectors are flaky is that theBest Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: www.markgurries.com [Non-text portions of this message have been removed] ------------------------------------ http://www.WiringForDCC.comYahoo! Groups Links [Non-text portions of this message have been removed]
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Re: edge connectors vs. terminal block
Vollrath, Don <dvollrath@...>
Jack, It's not the Tortoise that is the issue, it is the connectors some folks try to use with it.
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DonV
-----Original Message-----
From: WiringForDCC@... [mailto:WiringForDCC@...] On Behalf Of Jack Hofmockel Sent: Friday, August 03, 2012 4:01 AM To: WiringForDCC@... Subject: Re: [WiringForDCC] edge connectors vs. terminal block Not meaning to be flip here at all, but if Tortoise machines are such a source of problems, why use them at all? Jack.  "History is written by the winners." - anon. "Half of writing history is knowing how to hide the truth." - Capt. Mal Reynolds ________________________________ From: Mark Gurries <gurriesm@...> To: WiringForDCC@... Sent: Thursday, August 2, 2012 10:32 PM Subject: RE: [WiringForDCC] edge connectors vs. terminal block  I am glad it works for you but it hasn't for others who have done exactly that it still fails. You cannot get around the fact the tortoise board contact are not gold plated allowing oxidation. The thickness of the PCB board is undesized allowing a lose mechanical connection. The board does not have tight fit like a digitrax board has in it edge card connector for reference. On 8/2/12 at 6:43 PM, m.maginness@... ( Max Maginness) wrote: And the main reason the edge connectors are flaky is that theBest Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: www.markgurries.com [Non-text portions of this message have been removed] ------------------------------------ http://www.WiringForDCC.comYahoo! Groups Links
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Re: edge connectors vs. terminal block
Vollrath, Don <dvollrath@...>
Puckdropper: A clever solution to add screw terminals to a Tortoise. Did you measure the angled hole-to hole pitch? What is it?
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Some of the suggestions for alternate parts have different dimensions which may not fit. DonV
-----Original Message-----
From: WiringForDCC@... [mailto:WiringForDCC@...] On Behalf Of puckdropper Sent: Friday, August 03, 2012 9:09 AM To: WiringForDCC@... Subject: [WiringForDCC] Re: edge connectors vs. terminal block I came across an interesting idea shortly after the edge card connector to screw terminal boards were released. Scroll down the the bottom of this page: http://home.comcast.net/~mjmx/models.htm This would seem to make wiring under the layout easier, while maintaining a reasonable amount of reliability. I've built one as a demonstration, but it's not been installed on the layout yet to see how well it works. If you use screw terminals, be sure to look at the wire gauges and capacities. Trying to jam more wires under a screw than the device is rated for is a sure way to have problems. Puckdropper
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Re: edge connectors vs. terminal block
He Puckdropper:
I use these terminals on my decoder boosters. They are really nice and easy to trouble shoot: Here is a cheap source: http://www.goodluckbuy.com/2-pin-screw-terminal-block-connector-5mm-pitch-100-pcs.html They also have 3 terminal blocks. And they all dovetail together. I think the photo shows them at a slight angle due the the holes in the circuit board. It would be worth redrilling a few holes to have them straight. Carl.
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Re: edge connectors vs. terminal block
mgstewart <mgstewart@...>
Puckdropper,
Thanks for the tip! Any idea as to part number and source of the terminal blocks? Are you a hockey referee? Malcolm Stewart From: puckdropper Sent: Friday, August 03, 2012 10:08 AM To: WiringForDCC@... Subject: [WiringForDCC] Re: edge connectors vs. terminal block I came across an interesting idea shortly after the edge card connector to screw terminal boards were released. Scroll down the the bottom of this page: http://home.comcast.net/~mjmx/models.htm This would seem to make wiring under the layout easier, while maintaining a reasonable amount of reliability. I've built one as a demonstration, but it's not been installed on the layout yet to see how well it works. If you use screw terminals, be sure to look at the wire gauges and capacities. Trying to jam more wires under a screw than the device is rated for is a sure way to have problems. Puckdropper --- In mailto:WiringForDCC%40yahoogroups.com, rneilphoto@... wrote:
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Re: edge connectors vs. terminal block
Puckdropper
I came across an interesting idea shortly after the edge card connector to screw terminal boards were released. Scroll down the the bottom of this page: http://home.comcast.net/~mjmx/models.htm
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This would seem to make wiring under the layout easier, while maintaining a reasonable amount of reliability. I've built one as a demonstration, but it's not been installed on the layout yet to see how well it works. If you use screw terminals, be sure to look at the wire gauges and capacities. Trying to jam more wires under a screw than the device is rated for is a sure way to have problems. Puckdropper
--- In WiringForDCC@..., rneilphoto@... wrote:
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Re: edge connectors vs. terminal block
Jack Hofmockel <jack.hofmockel@...>
Not meaning to be flip here at all, but if Tortoise machines are such a source of problems, why use them at all?
Jack.  "History is written by the winners." - anon. "Half of writing history is knowing how to hide the truth." - Capt. Mal Reynolds ________________________________ From: Mark Gurries <gurriesm@...> To: WiringForDCC@... Sent: Thursday, August 2, 2012 10:32 PM Subject: RE: [WiringForDCC] edge connectors vs. terminal block  I am glad it works for you but it hasn't for others who have done exactly that it still fails. You cannot get around the fact the tortoise board contact are not gold plated allowing oxidation. The thickness of the PCB board is undesized allowing a lose mechanical connection. The board does not have tight fit like a digitrax board has in it edge card connector for reference. On 8/2/12 at 6:43 PM, m.maginness@... ( Max Maginness) wrote: And the main reason the edge connectors are flaky is that theBest Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: www.markgurries.com [Non-text portions of this message have been removed]
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Re: edge connectors vs. terminal block
Mark Gurries
I am glad it works for you but it hasn't for others who have
done exactly that it still fails. You cannot get around the fact the tortoise board contact are not gold plated allowing oxidation. The thickness of the PCB board is undesized allowing a lose mechanical connection. The board does not have tight fit like a digitrax board has in it edge card connector for reference. On 8/2/12 at 6:43 PM, m.maginness@... ( Max Maginness) wrote: And the main reason the edge connectors are flaky is that the Best Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: www.markgurries.com
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Re: edge connectors vs. terminal block
Max Maginness
And the main reason the edge connectors are flaky is that the tortoise edge is not a standard width for 8 pin connectors. Consequently lots of slop, misalignment and bridging from contact to contact. Easily fixed by a piece of styrene at each end of the connector slot to center it up.
Max From: WiringForDCC@... [mailto:WiringForDCC@...] On Behalf Of Mark Gurries Sent: Thursday, August 02, 2012 2:23 PM To: WiringForDCC@... Subject: RE: [WiringForDCC] edge connectors vs. terminal block Being involved in the construction or debugging of many large layouts, Tortoise edge card connectors are a serious potential electrical failure point. I have seen it over and over that the edge card connection used with the tortoise fail. The idea here is fear that the tortoise itself will mechanically fail and by making it an easy unit to replace will allow one to keep the layout up and running with minimal down time. The problem is the Edge Card connector fails first. If you ever had to clean the contacts or played with the edge connector due to some intermittent electrical issue or found that moving the wiring around the tortoise seem to fix it, then the Edge Card connector is the problem. Tortoise fail so rare that the cost and time involved in using the edge connector is simply not worth it. It cause more problems than is solves. Solder the wires and do not worry about the tortoise. On 8/2/12 at 8:04 AM, dvollrath@... <mailto:dvollrath%40magnetek.com> (Vollrath, Don) wrote: Your choices of connecting schemes depends greatly on what youBest Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: www.markgurries.com _____ No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1424 / Virus Database: 2437/5172 - Release Date: 08/02/12 [Non-text portions of this message have been removed]
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Re: Wiring Tortoise for turnouts, switches + LED's
David Klemm
Richard;
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You will have a wire from the switch going to tab 1 and another wire to tab 8. Pick one side and put your LED and resistor in line. When you power it up it may display the wrong color, if so then just flip the legs of the LED. David Klemm
On Aug 2, 2012, at 9:50 AM, rneilphoto@... wrote:
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Re: edge connectors vs. terminal block
Mark Gurries
Being involved in the construction or debugging of many large
layouts, Tortoise edge card connectors are a serious potential electrical failure point. I have seen it over and over that the edge card connection used with the tortoise fail. The idea here is fear that the tortoise itself will mechanically fail and by making it an easy unit to replace will allow one to keep the layout up and running with minimal down time. The problem is the Edge Card connector fails first. If you ever had to clean the contacts or played with the edge connector due to some intermittent electrical issue or found that moving the wiring around the tortoise seem to fix it, then the Edge Card connector is the problem. Tortoise fail so rare that the cost and time involved in using the edge connector is simply not worth it. It cause more problems than is solves. Solder the wires and do not worry about the tortoise. On 8/2/12 at 8:04 AM, dvollrath@... (Vollrath, Don) wrote: Your choices of connecting schemes depends greatly on what you Best Regards, Mark Gurries Electrical Engineer DCC Website & NMRA DCC Clinics: www.markgurries.com
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Re: edge connectors vs. terminal block
Blair
As a fastening alternative, I sometimes use the velcro strapping
available at garden centers for plant ties, stapled to a convenient location under the layout. Makes for a very simple, expandable hanging system. Something like this: http://www.homedepot.ca/product/velcro-plant-tie/969300# Blair snip ...Neatness isn't absolutely necessary but does help to keep wiring organized and somehow held out of the way so that you don't end up snagging dangling wires. ...
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Re: edge connectors vs. terminal block
Vollrath, Don <dvollrath@...>
Your choices of connecting schemes depends greatly on what you intend to do in the future, how flexible or reliable you want it to be, your skill set and how much time, effort and $$ you are willing to put into it. For example I simply solder #22 wires directly to the tortoise machines. They are so reliable there is no need for a costly connector. Smaller gage wire like telephone wire or flat cable will work also for tortoise motor power or signaling, but not frog power switching. However, smaller wires are somewhat fragile and may require mechanical strain relief to unsure that the wires won't break off. A full wrap of tape or zip-tie around the body of the Tortoise secures a loop of wires in place. A spot of Gorilla glue or hot-melt glue works great to tack misc wires to the underside of the layout. Adhesive tape usually doesn't stick. Running those wires 15-30 ft to a central accessory decoder is no problem. Make sure you have plenty of wire length to allow for bundling without making additional wire splices. [Use the proper gage insulated crimp-on butt-splices and a good crimper for that purpose if required.] Neatness isn't absolutely necessary but does help to keep wiring organized and somehow held out of the way so that you don't end up snagging dangling wires.
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DonV
-----Original Message-----
From: WiringForDCC@... [mailto:WiringForDCC@...] On Behalf Of rneilphoto@... Sent: Thursday, August 02, 2012 9:11 AM To: WiringForDCC@... Subject: [WiringForDCC] edge connectors vs. terminal block Are there any recomendations, suggestions, comments for using edge connector cards vs. terminal blocks for Tortoises? Any discussion of benefits vs. pitfalls of one over the other? Regarding blocks... how far away (what's the longest length) from a device can a feeder wire be &/or what suggested guage... 20, 22, ??? It seams that terminal blocks would aloww mulitple similar devices to be connected to a neaby individual block, ie: 3 Tortoise machince & their related LEDs (&/or other devices) to a single block... right? Or not? Thanks, Richard ------------------------------------ http://www.WiringForDCC.comYahoo! Groups Links
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edge connectors vs. terminal block
Richard Neil
Are there any recomendations, suggestions, comments for using edge connector cards vs. terminal blocks for Tortoises? Any discussion of benefits vs. pitfalls of one over the other? Regarding blocks... how far away (what's the longest length) from a device can a feeder wire be &/or what suggested guage... 20, 22, ??? It seams that terminal blocks would aloww mulitple similar devices to be connected to a neaby individual block, ie: 3 Tortoise machince & their related LEDs (&/or other devices) to a single block... right? Or not?
Thanks, Richard
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Re: Wiring Tortoise for turnouts, switches + LED's
Richard Neil
--- In WiringForDCC@..., DAVID KLEMM <davidklemm7511@...> wrote:
Yes, correct & I'll add for clarification (it may may modify your responce) that the bi-color LED will be on both the layout itself, next to the turnout, AND on the control panel board. Looking forward to your reply. Richard If that is correct then you put the LED in line with one side of the switch between the switch and tortoise. Use a DPDT without center off.
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