Re: Tim V's workbench - latest shenanigans
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Re: Tim V's workbench
Class 4 on hold while I build the class 2 - very similar!
Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
And not letting go of this particular bone...and the coaches?
On the Ivatt is that the rubbing plate you've soldered in already?
Mike
On the Ivatt is that the rubbing plate you've soldered in already?
Mike
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Re: Tim V's workbench
Coaches finished and put away in the stock box, ready for the Woking show this coming weekend!
Yes, that's a rubbing plate at the front, temporarily in place.
Yes, that's a rubbing plate at the front, temporarily in place.
Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
Currently building signal ladders -those rungs go on and on and on .....
Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
Finally getting round to the shunting.
This wagon is immediately behind the loco, and has the same DCC address.
The motorised wagon is permanently coupled to the second wagon. Reason for this was because the High level motorised wagon is not compensated, and reliable pickup was not guaranteed. Plus there was no room for the Dingham solenoid.
The shunting sequence goes like this. F1 on the controller lifts the Dingham.
Engine off left of picture. Train uncoupled and left behind.
Motorised wagon flicked down siding.
By using asymmetric DCC, the wagon can be left to automatically slow to a realistic stop. Here are the diodes controlling this.
Result a success, I can finally loose shunt as it was done on the prototype.
This wagon is immediately behind the loco, and has the same DCC address.
The motorised wagon is permanently coupled to the second wagon. Reason for this was because the High level motorised wagon is not compensated, and reliable pickup was not guaranteed. Plus there was no room for the Dingham solenoid.
The shunting sequence goes like this. F1 on the controller lifts the Dingham.
Engine off left of picture. Train uncoupled and left behind.
Motorised wagon flicked down siding.
By using asymmetric DCC, the wagon can be left to automatically slow to a realistic stop. Here are the diodes controlling this.
Result a success, I can finally loose shunt as it was done on the prototype.
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Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
I'm a tad confused Tim. If the loco and the wagon have the same address how do you stop the loco but not the wagon?
Cheers
Jim
Cheers
Jim
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Re: Tim V's workbench
I'll reveal my total ignorance about DCC by saying that much the same thought occurred to me: if both engine and wagon are responding to commands on the same 'channel', what stops those Troublesome Trucks setting off in pursuit of the engine when it tries to get away? - "Hey, wait for us!"
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Re: Tim V's workbench
Sorry, I didn't explain it well.
There are three wagons involved here.
One is attached behind the loco, it has a decoder and an uncoupling solenoid. It has the same DCC address as the loco. This is because there isn't room in the loco for the solenoid. This results in a loco with a remote uncoupler with it.
The other two wagons are permanently attached to each other. They have a different DCC address. There is a motor in one of the wagons, the other has an uncoupling solenoid. Again, there isn't room for a motor, solenoid, decoder in the one wagon, alongside which, the wagon doesn't have compensation so pickup is unreliable.
There are three wagons involved here.
One is attached behind the loco, it has a decoder and an uncoupling solenoid. It has the same DCC address as the loco. This is because there isn't room in the loco for the solenoid. This results in a loco with a remote uncoupler with it.
The other two wagons are permanently attached to each other. They have a different DCC address. There is a motor in one of the wagons, the other has an uncoupling solenoid. Again, there isn't room for a motor, solenoid, decoder in the one wagon, alongside which, the wagon doesn't have compensation so pickup is unreliable.
Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
So the uncoupling loop in the wagon is the same number as the loco and the motor powering the wagons is on a different number allowing the pair to run as a consist?
gordon A
bristol
gordon A
bristol
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Re: Tim V's workbench
A quickly flat battery in my digital callipers has been annoying me for a while. Then a suggestion on the 2mm VAG (Virtual area Group) inspired me to install an on/off switch. It was a fag taking out the battery each time I used it. Now I just put a link over the two pegs. Simples!
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Tim V
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
Throw those digitals away ……..my imperial calliper from the 1960's is still going strong (OK, so I still work in old money!)………..have gone through 3 sets of metric digitals in the last 10 or so years (broken contacts, unexplained spurious readings……have never trusted them) ……a few years ago I returned to mechanical and all is well…..
Rob
Rob
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Re: Tim V's workbench
Yes, my trusty mechanical one gets used the most, but I have workshops up here and down in the garage - so I need more than one.
Tim V
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
Tim,
Me too…….winter quarters in the spare bedroom…..summer in the garage……..how much do yours weigh to carry down??????….
R
Me too…….winter quarters in the spare bedroom…..summer in the garage……..how much do yours weigh to carry down??????….
R
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Re: Tim V's workbench
Couple of tons......
Upstairs workshop (with small lathe), in use year round, garage workshop (with the big lathe) when it's a bit warmer!
Upstairs workshop (with small lathe), in use year round, garage workshop (with the big lathe) when it's a bit warmer!
Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
RobM wrote:how much do yours weigh to carry down??????….
Tim V wrote:Couple of tons......
Dashed big pair of calipers ... what scale are they, then?
David L-T
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Re: Tim V's workbench
Further work on shunting wagons. Here is a standard 13T with uncoupling solenoid just visible and the DCC chip under the blue cover. I wont be able to demonstrate these at S4N, as I'm otherwise engaged.
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Tim V
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Re: Tim V's workbench
How do you get on with the Dingham couplers? I'm finding the constant need for adjustment of AJs increasingly frustrating and have been considering a change.
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Re: Tim V's workbench
I'm pleased to say, once set up, they don't need adjusting (unlike AJs, which are quite fragile).
However, I've yet to put them through the demands of an exhibition - next outing is Trainwest 2016.
However, I've yet to put them through the demands of an exhibition - next outing is Trainwest 2016.
Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
As notified elsewhere, I am involved in resurrecting Burnham. I have been passed a Bachman 3F to cast my eyes over.
Well, the rods on one side are OK, but I've failed the rods on the other. The wooden wedges are being used to force the 1/8" jigs to one side of the oversized slot.
These bearings also enable the wheels to slop around sideways, so that will ruin any chances of decent running. Need some washers or tubes to take out the slop.
The body looks very nice, should make a useful addition to the stock.
Well, the rods on one side are OK, but I've failed the rods on the other. The wooden wedges are being used to force the 1/8" jigs to one side of the oversized slot.
These bearings also enable the wheels to slop around sideways, so that will ruin any chances of decent running. Need some washers or tubes to take out the slop.
The body looks very nice, should make a useful addition to the stock.
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Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
I'd try a straight wheel swap and see first before you over think things Tim
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Re: Tim V's workbench
It has already been modified, but it's a poor runner. I'm trying to make it better.
Tim V
(Not all railways in Somerset went to Dorset)
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
Gibson wheels, three rims popped off! Soon glued those on. I've bushed the rods with standard 2mm pin point bearings, drilled out to fit the crank pins, then soldered to the rods.
Tim V
(Not all railways in Somerset went to Dorset)
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Re: Tim V's workbench
Tim V wrote:Gibson wheels, three rims popped off! Soon glued those on.
Hello Tim,
Were these new ones or old stock? I had hoped that such issues were a thing of the past...
Best wishes,
Howard
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