Date   

Re: Building a yard ladder

Blair
 

I have found the pinwheel style of ladder to be very effective and compact while also being forgiving in clearances.
With Peco C100, 7 turnouts give you 84 degrees curvature at the throat of an 8-track staging yard very nicely.


Sent from his Galaxy



Re: Building a yard ladder

Blair
 

If using PECO C100, they told me they're designed to give you 2" spacing if laid nose-to-tail.  If you want wider spacing, you can easily calculate a length based on the diverging angle(12*) and the desired additional length.
Blair



Sent from his Galaxy



Bachman DCC EZ track turnouts

Joseph A. Correro, Jr. <joedeyejr@...>
 

I couldn't get anything from Bachmann regarding how to wire its DCC Onboard turnouts to my bus. Can anyone help me? Thank you!


Re: T-25 Wire Staplers

john
 

Ken,
If you lighten the pressure on the stapler it will penetrate less. It takes very little practice and you can test with a piece of scrap. If you want a piece of plastic between, put a piece of tape on the wire.
jd

On Sunday, August 8, 2021, 12:26:58 PM EDT, Ken Harstine <kharstin@...> wrote:


I am not seeing any T-25 staples with plastic to prevent shorting if the metal breaks through the insulation.  As long as only one wire is run under them it is not a problem but it seems like it is asking for a problem if two wires run under one staple.  Plastic insulation deforms under pressure and it seems like it would might break through the insulation on occasion and with enough time.

Regards,
Ken Harstine


Re: DCC Bus reversing question

Don Weigt
 

I've only just begun to use auto reversing, and had no problems so far on my modest applications. But, the thought has occurred to be that boosters should have an external phase control. In cases like Blair's, the reversing could be controlled by some external event and not need to use auto reverse or an external switch or relay of any kind.

I'm surprised that it isn't a standard booster feature. It's simple enough to invert the driving signal from the command station to reverse the output phase. One XOR logic gate will do it... I may investigate adding that to my EasyDCC dual boosters.

Don Weigt
Connecticut

--
Don Weigt
Connecticut


Re: Building a yard ladder

Scott H. Haycock
 

The key measurement for laying out yard tracks is center-to-center spacing. in HO this is usually 2'' on straight track. Lay it out. Most HO turnouts have to be shortened for ladders. The NMRA website will have their standards somewhere and they will have this info for OO scale.

Scott Haycock
Modeling Tarheel country in the Land of Enchantm
ent

On 08/08/2021 12:33 PM alynmar@... wrote:
 
 
When building a yard ladder is it acceptable to place your turnouts end to end or should there be some track in between the turnouts, if so what would the recommended track length be in OO scale?     Thank you for any suggestions.

Alan


Building a yard ladder

alynmar@...
 

When building a yard ladder is it acceptable to place your turnouts end to end or should there be some track in between the turnouts, if so what would the recommended track length be in OO scale?     Thank you for any suggestions.

Alan


Re: DCC Bus reversing question

Allan AE2V
 

Hi Blair,

I'll wait until you post your diagram.  You are right, the rule about avoiding adjacent reversing units is a good one.

Allan


Re: T-25 Wire Staplers

 

I am not seeing any T-25 staples with plastic to prevent shorting if the metal breaks through the insulation.  As long as only one wire is run under them it is not a problem but it seems like it is asking for a problem if two wires run under one staple.  Plastic insulation deforms under pressure and it seems like it would might break through the insulation on occasion and with enough time.

Regards,
Ken Harstine


Re: DCC Bus reversing question

Blair
 

Allan

My problem is a bit more complicated.   I think I'll generate a picture and post it later, it will explain things better.  Essentially, if an area served by 3 or 4 PSX breakers must all be either normal or reversed, why would you do it incrementally with several PSX-AR units, particularly as they are electrically adjacent and therefore violate the "no AR sections adjacent" rule previously discussed many times?  I realize that rule may or may not apply to PSX-AR units, but it's still a good practice.

Blair


On 2021-08-08 8:54, wirefordcc wrote:
Hi Blair,

For people that have some form of electronic circuit breakers and need reversing, think about products like the PSX-AR that has both in one unit.  The obvious advantage is that they are designed to work together.  They are all solid state, too, so you don't have the relay switching problem.

Allan Gartner
Wiring for DCC


Re: DCC Bus reversing question

Allan AE2V
 

Hi Blair,

For people that have some form of electronic circuit breakers and need reversing, think about products like the PSX-AR that has both in one unit.  The obvious advantage is that they are designed to work together.  They are all solid state, too, so you don't have the relay switching problem.

Allan Gartner
Wiring for DCC


Re: PSX Circuit Breaker Issue

Swanny
 

Sorry for the tardy reply, but I must report that I've seen this problem for quite some time on my RR, which includes about 18 PSX and 4 PSXAR devices.  Upon reporting it to Tony's and asking for a possible solution, I was told in an email response that this behavior is considered normal.  Not what I wanted or expected to hear, given the reason for using these devices!
John


DCC Bus reversing question

Blair
 

I have two large staging yards.  They are accessed via two parallel tracks that enter an optional crossover - trains can go straight through either side of the crossover, or can cross over.  This allows trains to enter staging and face in either direction;  Or, you could think of it as, any train in staging can enter the layout going in either direction.  However, the layout DCC polarity is fixed.  This means that the entire staging yard needs to be a large reversing section.  My intent was to either reverse, or not reverse, the output of the booster feeding the yard with a relay, dependent on whether the crossover is set to X or ||.

This will work, but the relay approach leaves every loco in the yard seeing a momentary power loss, causing the noisy ones to recycle.  Not fun.

I don't really want to reverse using the Booster Autoreverse, as it then needs to be configured to flip faster than the circuit breakers feeding sections of the yard(can that be done reliably?).  For example, if I use either a PM42 or 4 PSX units to subdivide the yard, the booster has to reverse polarity before those elements react to the short when a train enters the crossover if it's X, if the crossover was previously set to ||.

If I could find a 10A DPDT solid state relay equivalent, I think I'd be away to the races, as this could then simply throw when the crossover changes state.

Suggestions?  I haven't explained it very well, so ask for clarifications if you need to.

Blair


Re: Twisted bus - diversion into ballast conductivity discussion

Blair
 

Thanks.  We use diluted carpenter's yellow, haven't had a problem yet but detection is just arriving on scene - I've been relying on just checking bus-to bus-resistance so far, for the little bit we've ballasted.

Understand about not gluing, but I've found in the past that ballast 'migrates' when cleaning, and ends up in turnouts.  Elsewhere, could care less, but I don't want turnouts stuck mid-throw because I just cleaned the track, so we'll experiment with glue and resistance measurement.  As long as the R between the busses feeding the track remains > 100k, I expect it won't be a problem.  It's simple to connect an ohmmeter and check as we go, or better yet just make up a test strip and do the test before adding any new form of ballast or glue.

Thank you for the information

Blair

On 8/7/2021 4:22 PM, thomasmclae via groups.io wrote:
There were several products in the past made of organic material. Ground pecan shells or some such. Bad.

We use a rock product, not sure the latest vendor. (Lots of vendors come and go over 30 years...) I Think it is granite dust. Sifted to get the fine dust out, you want toe rocks, not a paste.
We also use diluted white glue (NOT school glue) as bunding agent. Main reason, you can add water and remove later if you need to adjust or replace. 
We do not use matte medium on ballast, it dries hard and cannot be removed or adjusted easily. Good for everything but ballast. (Also conducts wheel sounds better too, lots of extra noise!)

The other option is not to glue down your ballast. Unless you are a module that gets tipped in moving to shows, glue is optional.
Thomas
DeSoto, TX


Re: Scotchlok bus punctures

Blair
 

"My T-25 is my friend."

John, Totally agree.  I came across mine last fall in a box of tools that came from my Father-in-law's shop.  I had always been unhappy with either using a T50 stapler (square shoulder staples), nail-in plastic cable clips, or a dozen other methods (I even tried stapling twist ties to the layout bottom!).  Figured I'd give the T-25m a try.  It's a charm.  With the low price of staples, I don't blink twice at moving a wire, or a whole run, it's so easy.

I'm presently wiring the underside of a 12-track staging yard throat(It's on it's side in my staging room - I'm past the age of enjoying wiring from beneath, though I will still do it), and while I solder all my feeders, I use a lot of staples to restrain the resultant wire nest.

The irony?  He used it to staple cedar strips to a form when he built a cedar strip canoe for his son as a wedding present.  I don't believe he ever stapled a cable with it!

Blair


Re: PSX Circuit Breaker Issue

Robert Wilson
 

It would be nice if Digitrax would update their PM42 to solid state with screw terminals. They could call it PM52 and charge $10 more for it. One of the reasons I went with the PSX’s is because they don’t require the rats nest of soldered wires that the PM42 requires. Maybe someone from Digitrax is part of this group….

On Aug 7, 2021, at 4:27 PM, Blair <smithbr@...> wrote:



Thank you for this, Allan.  I currently have four PM42 units installed.  My next expansion would have added two, possibly four depending on how power hungry staging gets, but I have been considering moving to PSX breakers, as the old relay-based breakers don't 'play nice' with sound units.  Right now, the jury is out, until I get annoyed enough; I may upgrade the PSX units slowly, as all of my PM42 installs are constructed such that I can swap in two dual PSX breakers, stacked one over the other, without much problem.  Should I make the jump to all PSX, I'll be remembering this feature when setting things up.

Thanks again

Blair Smith

On 8/7/2021 4:07 PM, wirefordcc wrote:
PSX users with Digitrax equipment:

I wish I had remembered this sooner.  When I set up my PSX's, I had problems.  After checking everything I could, I contacted DCC Specialties.  It turns out when I was setting up the PSX's, my Digitrax equipment (DCS 210) was sending some accessory addresses which were messing up the PSX settings.  The solution, while the PSX programming jumper is in place, is to disconnect the PSX from the track bus whenever powering up the DCS 210.  Wait about 30 seconds after powering up the DCS 210 and wait for it to finish sending its start up messages.  Then connect the PSX to the track bus and complete your programming.  When you aren't programming the PSX, of course, you just leave the PSX attached to the track bus.  This solved my problem.

Note:  I am using lots of Frog Juicers.  While my layout is still under construction and I haven't run it much, I haven't had issues with them and the PSX's.  Whenever I wire, I frequently check to make sure the electronic circuit breakers are working the way they should.  They did.

Allan Gartner
Wiring for DCC


Re: Twisted bus - diversion into ballast conductivity discussion

thomasmclae
 

There were several products in the past made of organic material. Ground pecan shells or some such. Bad.

We use a rock product, not sure the latest vendor. (Lots of vendors come and go over 30 years...) I Think it is granite dust. Sifted to get the fine dust out, you want toe rocks, not a paste.
We also use diluted white glue (NOT school glue) as bunding agent. Main reason, you can add water and remove later if you need to adjust or replace. 
We do not use matte medium on ballast, it dries hard and cannot be removed or adjusted easily. Good for everything but ballast. (Also conducts wheel sounds better too, lots of extra noise!)

The other option is not to glue down your ballast. Unless you are a module that gets tipped in moving to shows, glue is optional.
Thomas
DeSoto, TX


Re: PSX Circuit Breaker Issue

Blair
 

Thank you for this, Allan.  I currently have four PM42 units installed.  My next expansion would have added two, possibly four depending on how power hungry staging gets, but I have been considering moving to PSX breakers, as the old relay-based breakers don't 'play nice' with sound units.  Right now, the jury is out, until I get annoyed enough; I may upgrade the PSX units slowly, as all of my PM42 installs are constructed such that I can swap in two dual PSX breakers, stacked one over the other, without much problem.  Should I make the jump to all PSX, I'll be remembering this feature when setting things up.

Thanks again

Blair Smith

On 8/7/2021 4:07 PM, wirefordcc wrote:
PSX users with Digitrax equipment:

I wish I had remembered this sooner.  When I set up my PSX's, I had problems.  After checking everything I could, I contacted DCC Specialties.  It turns out when I was setting up the PSX's, my Digitrax equipment (DCS 210) was sending some accessory addresses which were messing up the PSX settings.  The solution, while the PSX programming jumper is in place, is to disconnect the PSX from the track bus whenever powering up the DCS 210.  Wait about 30 seconds after powering up the DCS 210 and wait for it to finish sending its start up messages.  Then connect the PSX to the track bus and complete your programming.  When you aren't programming the PSX, of course, you just leave the PSX attached to the track bus.  This solved my problem.

Note:  I am using lots of Frog Juicers.  While my layout is still under construction and I haven't run it much, I haven't had issues with them and the PSX's.  Whenever I wire, I frequently check to make sure the electronic circuit breakers are working the way they should.  They did.

Allan Gartner
Wiring for DCC


Re: PSX Circuit Breaker Issue

Allan AE2V
 

PSX users with Digitrax equipment:

I wish I had remembered this sooner.  When I set up my PSX's, I had problems.  After checking everything I could, I contacted DCC Specialties.  It turns out when I was setting up the PSX's, my Digitrax equipment (DCS 210) was sending some accessory addresses which were messing up the PSX settings.  The solution, while the PSX programming jumper is in place, is to disconnect the PSX from the track bus whenever powering up the DCS 210.  Wait about 30 seconds after powering up the DCS 210 and wait for it to finish sending its start up messages.  Then connect the PSX to the track bus and complete your programming.  When you aren't programming the PSX, of course, you just leave the PSX attached to the track bus.  This solved my problem.

Note:  I am using lots of Frog Juicers.  While my layout is still under construction and I haven't run it much, I haven't had issues with them and the PSX's.  Whenever I wire, I frequently check to make sure the electronic circuit breakers are working the way they should.  They did.

Allan Gartner
Wiring for DCC


Re: PSX Circuit Breaker Issue

Robert Wilson
 

I solved the problem finally! The PSX instruction manual states that when there is a short, D12 led should stay on and not flash. My D12 was flashing on and off, which the instruction manual indicated that the booster did not support “automatic reset.” As a result, I had to solder a jumper wire on the PSX boards between J7-1 and J7-2. Once I did that, problem was solved. Only downside is that when a short occurs, I have to manually reset the PSX by sending an accessory command to 997 in my throttle.

So apparently the new DCS210+ command/booster’s do not support auto reset, at least with the PSX’s.

I appreciate everyone weighing in and helping.

On Aug 7, 2021, at 2:14 PM, Blair <smithbr@...> wrote:



Jim,

It happens only when he shorts one loop out.  I think the cycling is just the DCS retries.

Blair


On 2021-08-07 13:21, Jim Betz wrote:
Robert,
  This sounds more like two cabs on the same address ... Jim

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