Hornby R070 00 Gauge Turntable Electric

Product Information

Ignore the DCC Decoder connections to the hut for the R410 TT, this drawing is for a motorised bridge R070 TT and not the manually rotated R410 version. I was wondering whether anyone had attempted to muffle the noise - e.g. inserting sound deadening material on the inside of the motor/gear housing, or mounting the TT on some kind of insulating mat, or . . . . . . ? Because the motor itself is quite quiet. The Round Hole part is the one that was desighned for the Electric Motor Operated version of theTurntable. (Only Elecric Motor Operated versions have been made for many years now...including the current issue). The Hornby method of conversion is a bit brutal and will invalidate the guarantee. There are a few different ways of converting for DCC and may not require removal of the bridge However, this 16 outlet version would be capable of having RM rotate the icon bridge in sync with the real thing, but it would have to "remember" the bridge position between RM sessions.

The square hole is for the square 'pin' on the end of the "Water Crane" to engage in...turning the Wayer Crane operated the turntable... Kerry, you've now used up your two posts until this time tomorrow. If only you had answered ALL my questions like Q1 & Q4 in the absence of full answers. I shall now have to make some assumptions to fill in the gaps. I would like to ensure that an outlet spur is only live when the turntable is in the correct position for that I'm tempted to get a R070 Turntable for a Thomas based kiddies layout, which will be controlled via DCC. If not, what about a 12 volt bulb of some description, like for example what you would find used on a car - side light / stop light / turn indicator light / interior light etc?effectively make a reversing loop, is a short caused or is the loop isolated by the different positions of the rotating rail as it goes from one turnout to the other?[/i]" From my point of view, I run my trains via Railmaster programs, including the movement of the turntable. I prefer to be as automated as possible so that I can enjoy watching the trains, rather than spend a lot of time and mental energy controlling them myself. But as I say, that is only my personal preference. Hi, Rog (RJ) has covered much of your questions regarding the use of the R070 turntable on DCC. But if I can expand: Using the T/T with DCC comes into two categories;

I am thinking of putting a building over the motor housing....possibly a 'sand house' with a chimney for ventilation...or a Water Tower with vents? The special worms are also available....just need a worm puller to remove existing worm....and a method of fitting new worm without damaging the motor.... The combined minds on the forum have put together a modification plan that improves on Hornby's own suggested modification to resolve this 'short circuit' issue when using the Hornby DC Analogue turntable on a Digital DCC layout. It is documented in a 'historical thread', but unfortunately the 'historical threads' on this new forum are still awaiting their historical images to be copied over from the old forum. So the described modification method will be near impossible to follow with the supporting images missing. I will see how much noise a new motor makes at reduced voltage once I get one, and assess whether I can live with it. Otherwise I will play with bits of flannelette in carefully selected spots inside (wouldn't want it to get into the gears or motor!). Given the very low duty cycle of the motor, I wouldn't have thought heat build-up would be too much of an issue (but we'll see). The next potential problem for DCC is that half the outlet positions are at reversed polarity to the inlet. This is due to the way the connections are made to the bridge under the turntable and you can look up Brian Lambert for an explanation

That gets me to outlets. Your system will be fine on these where they are not connected elsewhere in the layout. If they are connected elsewhere and that removed or a short circuit will result. What causes this short to occur - from where to where?[/i]" In DCC, are the turnouts made live by the roating rail turning to them, or must a separate connection be made?" to them continues to do so and the isolation continues to avoid shorts during rotation. All you need to be aware of is outlet polarity on the reversed polarity outlets and getting that correct with respect to layout polarity.

There was a kit, Turntable Motorising Unit, R.411, which was used to motorise the R.410 Hand-Operated Turntable... is a very nice number when discussing this sort of thing. When a circle is divided into 16 slices, the angle is 22.5 degrees, the same angle seen on a compass. Unfortunately, in the mathematics of the RM layout, there angles are multiples of 45 degrees from the horizontal or vertical. So in the suggested icon above, the new outlets which are at positions NNE, ENE, ESE, SSE, SSW, WSW, WNW, and NNW i.e. the 22.5 degree ones, are converted to fit the RM geometry by connecting to the centre of an adjoining grid cell, making a slight kink as it does so ....

If you do not put the Water Crane in position, there is nothing to stop the Square Hole pinion being used with an electic motor drive... The problem with sound-proofing is that you could then cut the ventilation to the motor...which could then get a bit warm... I realise that my loco's (motor or lights) will not operate until the turntable is in the correct position but I prefer it like that." If you I, too, have just bought and installed a Hornby Turntable. I think you have made two conflicting statements in your post...