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Author Topic: Kato Unitrack System  (Read 30233 times)

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Offline Pjlons83

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Re: Kato Unitrack System
« Reply #165 on: December 10, 2017, 09:52:29 PM »
Hi,

Does anybody have the track height to hand (from baseboard). I’m trying to work out what the platform height should be. I know it’s 6mm from top of rail to platform but I don’t have the baseboard to top of rail measurement for Unitrack.

Thanks
Gold Hill - my rule 1, “just for fun” micro layout;

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Online ntpntpntp

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Re: Kato Unitrack System
« Reply #166 on: December 10, 2017, 09:58:30 PM »
Hi,

Does anybody have the track height to hand (from baseboard

7mm   (I just measured a couple of bits on my workbench, I got between 6.95mm and 7.07mm)
« Last Edit: December 10, 2017, 09:59:40 PM by ntpntpntp »
Nick.   2016 celebrating the 20th anniversary of "Königshafen" exhibition layout!

Offline Pjlons83

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Re: Kato Unitrack System
« Reply #167 on: December 10, 2017, 10:02:52 PM »

7mm   (I just measured a couple of bits on my workbench, I got between 6.95mm and 7.07mm)

Thanks. 12mm MDF it is then! With a bit of something to prop it up a mm.
Gold Hill - my rule 1, “just for fun” micro layout;

Clouds Hill - My first layout currently on hold;

Offline colpatben

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Re: Kato Unitrack System
« Reply #168 on: February 09, 2018, 08:19:36 AM »
The Double Y junction shown below is part of the layout plan for Bexhill West and Beyond


which is to be built using Kato track with DCC Control.

The question is does this diagram below work electrically?



I am assuming that the Kato X15 crossings at X1, X2 and X3 do not need any special provision for frog isolation or to get power to the far side of the crossing.

This statement from Sumida Crossing website supports this assumption

http://www.sumidacrossing.org/ModelTrains/TrackandRoadbed/KatoUnitrack/UnitrackSwitchesEtc/

‘There are two separate versions of this: the X15R and X15L. In the X15R, the longer segment diverges to the right as you move along the 186mm segment (and the X15L diverges to the left, of course).

Both routes are electrically isolated (both rails) from each other, but do not block current along the route (i.e., a power feed to the rails is only needed on one side of each route).’

We never have problems, only solutions!
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Offline colpatben

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Re: Kato Unitrack System
« Reply #169 on: February 10, 2018, 07:45:41 AM »
 :bump: Is there anyone with any thoughts :hmmm: on the above post #168
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Offline Malc

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Re: Kato Unitrack System
« Reply #170 on: February 10, 2018, 10:10:00 AM »
I can’t see why it wouldn’t work. Is the idea that the locos return up the same track when it hits the reverser, or is the point automatically switched.
I'm not sure if life is passing me by, or trying to run me over.

Offline colpatben

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Re: Kato Unitrack System
« Reply #171 on: February 10, 2018, 12:10:56 PM »
I can’t see why it wouldn’t work. Is the idea that the locos return up the same track when it hits the reverser, or is the point automatically switched.

The ultimate goal is full automation, such that any train proceeding to or leaving from Bexhill West Station situated to the R/H side of the crossover, can use any track and can become either an Up or Down train. All Turnouts will be selected and switched automatically under the dictates of the timetable.

Hence the reason for two separate Auto Reversers in the sections between T1/T2 and the Crossover on the right.

I am just trying to get confirmation that the concept for the wiring is sound before track laying begins.

We may temporarily replace the two auto reversers with DPCO switches wired for polarity reversal to test on DC and prove that the power is at all parts of the track.
We never have problems, only solutions!
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Offline Supertommymooney

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Re: Kato Unitrack System
« Reply #172 on: September 14, 2018, 02:15:36 PM »
Hi all

I am planning a track set up with Kato Unitrack. The idea is to go DC. I might run one loco initially and possibly add a second, but not run both at once. Couple of questions for those with some experience with Kato

1. If I add a set of No. 4 points later to a spur and get a second loco, can I park one loco in each and then operate one at a time before 'parking' back on it's side of the point - then switch the point and use the other loco? (This assumes the no. 4 points only have one side live at a time which I'd read). The rest of my layout I am planning with No. 6 points

2. Has anyone used the 20-230 or 20-231 crossovers and are they any good? I think they are based on No. 4 points and I want to ensure they are reliable and also any loco will go over them without a problem. It's either use that or 2 points back to back, or a (second) double crossover to get to a shunting yard. I have been advised to use a 'headshunt' if I can.

3. How much straight track should I use coming off a curve before going into a no. 6 point the other way? I guess 12.6 cm would be enough as it's roughly a loco or coach length.

I will attach one of the many versions of my possible track plan for some context to the above

Thanks!


Online dannyboy

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Re: Kato Unitrack System
« Reply #173 on: September 14, 2018, 02:28:52 PM »
Regarding the no. 4 points - I believe they are isolating points, i.e. one side is 'dead' when the other is 'live'. There is a screw underneath the points whereby it can be moved to make both sides 'live'. However, I understand the printed instructions under the point are wrong - there is a thread somewhere on the forum concerning this, plus plenty of information on t'internet. I have all parts of my layout wired up to the bus, via isolating switches, so I can run DCC or DC, so the no. 4 point being 'dead' or 'alive' does not affect me. If one leg of the point is 'dead', then yes, you can park a loco' on the 'dead' section.

I have two crossover pieces on my layout and have never had a problem with them. I have never thought to measure then to see whether they are equivalent to no 4 points.

A 12.6 cm straight would be more than adequate as a lead up to the no 6 point.

www.fiferhobby.com has lots of information regarding Kato Unitrack - as do a lot of members on the forum!  :)
David.
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Offline Malc

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Re: Kato Unitrack System
« Reply #174 on: September 14, 2018, 02:47:11 PM »
I use the crossover and to be honest, i’m A bit disappointed. When you switch it, sometimes not all the point blades move. It is usually only the first operation of the session, but you need to keep an eye on it. Also, some locos don’t like it, especially steamers with light pony trucks. If you accidentally operate it with a loco stuck on it, because the blade doesn’t move, the operating wire inside the crossover comes out of the little tab that is attached underneath the blade. This means removing the crossover from the layout, taking it apart and endless fun as you try to tease the spring bit of wire back through the hole in the tab.
I'm not sure if life is passing me by, or trying to run me over.

Online dannyboy

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Re: Kato Unitrack System
« Reply #175 on: September 14, 2018, 03:06:20 PM »
Okay, I'll be honest as well!  :) As @Malc has said, occasionally not all the blades do move at once, but, like Malc, I only find this happens on the first throw of the switch and then it works fine and, in defence of the crossover, I do find it happening occasionally on ordinary points, not just the crossover. Subsequent operation of the switch moves the points as intended. I emphasise though, this is an infrequent occurrence. Unlike Malc, I have never had any problem with operating wires coming adrift. (In fact, having had a look at the points, I can not actually see anything that can come adrift and I hope nowt does, as the crossovers are stuck down!   :worried:).   :beers:
David.
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Offline Malc

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Re: Kato Unitrack System
« Reply #176 on: September 14, 2018, 03:30:47 PM »
The points are very similar inside to the crossover, but obviously only have one operating bit. I have had one of them fail with the operating wire becoming detached, but that was when I was ballasting. I managed to get the black lever at the side stuck. It was much easier to get the point up than getting the crossover up.
I'm not sure if life is passing me by, or trying to run me over.

Offline Supertommymooney

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Re: Kato Unitrack System
« Reply #177 on: September 14, 2018, 05:21:47 PM »
Thanks everyone that's most helpful!

I am sticking to good old fashioned DC with a couple of power feeds to start with... not sure about a bus but it's only a small layout and if we go DCC later I will cross those bridges then...

Now just got to save up for all the points I have planned in (was only going to have 3 when I started this)

Offline Railwaygun

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Re: Kato Unitrack System
« Reply #178 on: September 15, 2018, 11:22:28 AM »
#4 points - Unitrack Hints & tips is your friend!
This is how to reconfigure power/ live switching

http://www.ngaugeforum.co.uk/SMFN/index.php?topic=7079.msg293414#msg293414

Sticky points / 4 way crossing

A drop of switch cleaner on the moving bits, and a small glassfibre brush on the metal frogs ( they collect crud)  works for me.


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Offline Supertommymooney

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Re: Kato Unitrack System
« Reply #179 on: September 23, 2018, 03:36:11 PM »
Hi all

Still messing about with layout plans (and reading everyone's helpful comments and previous threads!) I have now come up with this, which has what I've tried to make a fairly classic shunting yard.

If any Unitrack experienced people could let me know whether the 2 back to back left handed no.6 points coming off the mainline to the shunting yard look OK? I was a bit concerned backing off the top siding onto the headshunt is a bit of an s-curve and the whole shunting setup rather depends on this... (it's marked with the 11cm ruler on the plan to give an idea of the gap between the turns)

Any input welcome!

 

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