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Re: Was Back to back gauge now other dimensions
开云体育Keith, ? I've remotored and regearboxed a friend's Palmerston, made originally, but not by me, from the Mercian kit. ? ? Mashima 1420 Motor ??? (High Level Gears)?????????????????????????? ? 17.00 Load Hauler Gearbox ??? (High Level Gears)?????????????????????????? ? 18.00 Flywheel ???????????????????????????? (Branchlines)???????????????????????????????????? ??? 5.50. ? Prices are 2012. ? This was 0-16.5, and I think you might struggle for width, but phone Chris at High Level. I'd to take bits off the brass work underneath the saddle tank to get it in, a few minutes with a Dremel cutter. With 108:1 gearing, flat out, 12 volt,(that's max on my home made controllers) is probably about right, but the slow running is excellent. ? Frank ? ? From: O14@... [mailto:O14@...]
Sent: 25 January 2015 11:30 To: O14@... Subject: Re: [O14]Was Back to back gauge now other dimensions ? ? Thank you Brian and Adrian. Little bit more of my thinking, as there is room under the England saddle tank maybe I could include the side frames of a gearbox similar to High Level models/Comet gearbox. ? Keith, Dursley
Well then the relevance would be to keep the frames about 1mm. clear of the wheels at the minimum. ? Brian ? From: mailto:O14@... Sent: Sunday, January 25, 2015 2:59 AM To: O14@... Subject: Re: [O14]Was Back to back gauge now other dimensions ? ? Brian, ? All of this is of no relevance to Keith because he is looking at an FR England loco - which has INSIDE frames!! :-S Adrian ? ? |
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Re: Was Back to back gauge now other dimensions
开云体育Keith,
What I have been doing lately is using the Slater’s FD01 helical 2.9:1 with
a small gearhead motor, you can set the Slater’s box so it is contained within a
housing which holds it upright but allows it to float up and down if you are
using suspension or some sort of equalizing, or if room is a problem use the
Slater’s FD03 which is a smaller gearbox and has a ratio of 1.33:1, by choosing
the correct ratio? gearhead motor you can have your models run at full
power but only be travelling at a scale speed of 10-15mph. or whatever you want
the maximum speed to be, just do the maths and get the right ratio gearhead
motor.
?
Brian
Qld. Aust. ? From: mailto:O14@...
Sent: Sunday, January 25, 2015 9:30 PM
To: O14@...
Subject: Re: [O14]Was Back to back gauge now other
dimensions ?
Thank you Brian and Adrian. Little bit more of my thinking, as there is room under the England saddle tank maybe I could include the side frames of a gearbox similar to High Level models/Comet gearbox. ?
Keith, Dursley
---In O14@..., wrote : Well then the relevance would be to keep the frames about 1mm. clear of the
wheels at the minimum.
?
Brian
Qld. Aust. ?
From: mailto:O14@...
Sent: Sunday, January 25, 2015 2:59 AM
To: O14@...
Subject: Re: [O14]Was Back to back gauge now other
dimensions ? Brian, ? All of this is of no relevance to Keith because he is looking at an FR England loco - which has INSIDE frames!! :-S Adrian ?
? No virus found in this
message. |
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Re: Was Back to back gauge now other dimensions
Thank you Brian and Adrian. Little bit more of my thinking, as there is room under the England saddle tank maybe I could include the side frames of a gearbox similar to High Level models/Comet gearbox.
toggle quoted message
Show quoted text
Keith, Dursley ---In O14@..., <rallim56@...> wrote : Well then the relevance would be to keep the frames about 1mm. clear of the
wheels at the minimum. ? Brian Qld. Aust. ? From: mailto:O14@... Sent: Sunday, January 25, 2015 2:59 AM To: O14@... Subject: Re: [O14]Was Back to back gauge now other
dimensions ? Brian, ? All of this is of no relevance to Keith because he is looking at an FR England loco - which has INSIDE frames!! :-S Adrian |
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Re: Was Back to back gauge now other dimensions
开云体育Well then the relevance would be to keep the frames about 1mm. clear of the
wheels at the minimum.
?
Brian
Qld. Aust. ? From: mailto:O14@...
Sent: Sunday, January 25, 2015 2:59 AM
To: O14@...
Subject: Re: [O14]Was Back to back gauge now other
dimensions ?
Brian, ? All of this is of no relevance to Keith because he is looking at an FR England loco - which has INSIDE frames!! :-S Adrian ---In O14@..., <rallim56@...> wrote : Keith,
First and foremost, you need to have a look at some drawings for the
prototype, also keep in mind a lot of purpose built for 2ft. gauge loco’s had
the outer face of the wheels running about 3/4”-1” away from the inside face of
the frame, it would be almost impossible to replicate this in model form because
you would quickly have electrical shorts happening,
Some loco’s like Fowlers were built to allow the loco to be used for a
variety of gauges such as the Resilient Fowler Peldon at Amberley in the UK,
this type of loco has the frames set at 985mm, OD, and could be set to run on
2ft. gauge or up to 2’6” gauge, the 2ft. gauge version of the 0-4-0 Fowler like
Ixion released last year has the frames set at 3’11” ID, again it could be used
on 2ft. gauge or up to 2’6” gauge.
See etched model [1/35th scale Fowler DM]
As a general rule of thumb when designing a etch layout for frames I try to
allow a minimum of 1mm. from the outside face of the wheels to the inside face
of the frames, and that’s allowing for about .5mm. side play of the wheels,
however you need to also look at what has to go on the outside of the frames,
ie: fly cranks rods etc. and how thick/wide are they going to be in relation to
the overall width of the loco.
If you want any help or advice on how to set out the artwork, feel free to
ask.
?
Brian
Qld. Aust. ?
From: mailto:O14@...
Sent: Saturday, January 24, 2015 9:56 PM
To: O14@...
Subject: [O14]Was Back to back gauge now other
dimensions ? I am also interested in the other dimensions as well. What is the best width across a chassis eg outer face to outer face. I am playing with a design for a chassis of a Festiniog England and am considering getting it etched along with an etched footplate. ?
Many thanks
?
Keith HC, Dursley
No virus found in this message. No virus found in this
message. |
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Re: Was Back to back gauge now other dimensions
Brian, All of this is of no relevance to Keith because he is looking at an FR England loco - which has INSIDE frames!! :-S Adrian ---In O14@..., <rallim56@...> wrote : Keith, First and foremost, you need to have a look at some drawings for the
prototype, also keep in mind a lot of purpose built for 2ft. gauge loco’s had
the outer face of the wheels running about 3/4”-1” away from the inside face of
the frame, it would be almost impossible to replicate this in model form because
you would quickly have electrical shorts happening, Some loco’s like Fowlers were built to allow the loco to be used for a
variety of gauges such as the Resilient Fowler Peldon at Amberley in the UK,
this type of loco has the frames set at 985mm, OD, and could be set to run on
2ft. gauge or up to 2’6” gauge, the 2ft. gauge version of the 0-4-0 Fowler like
Ixion released last year has the frames set at 3’11” ID, again it could be used
on 2ft. gauge or up to 2’6” gauge. See etched model [1/35th scale Fowler DM] As a general rule of thumb when designing a etch layout for frames I try to
allow a minimum of 1mm. from the outside face of the wheels to the inside face
of the frames, and that’s allowing for about .5mm. side play of the wheels,
however you need to also look at what has to go on the outside of the frames,
ie: fly cranks rods etc. and how thick/wide are they going to be in relation to
the overall width of the loco. If you want any help or advice on how to set out the artwork, feel free to
ask. ? Brian Qld. Aust. ? From: mailto:O14@... Sent: Saturday, January 24, 2015 9:56 PM To: O14@... Subject: [O14]Was Back to back gauge now other
dimensions ? I am also interested in the other dimensions as well. What is the best width across a chassis eg outer face to outer face. I am playing with a design for a chassis of a Festiniog England and am considering getting it etched along with an etched footplate. ? Many thanks ? Keith HC, Dursley No virus found in this
message. |
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Re: Back to back gauge
Roy Link
开云体育John,This is very useful information, particularly as, to my knowledge you have more practical experience with regards ‘mainline’ O14 than myself - or anyone else I can think of. The RCL standards were developed solely for my O14 range of small ‘industrials’ - which gained their reliability only from keeping everything within tight constraints. Both locos and stock had similar wheelbases and overall lengths - enabling sharp curves to be easily negotiated in both directions, desire their light weight. Your locos and stock are much bigger and heavier, so they will tend to roll through slight inconsistencies regards flangeways and gauge. To the best of my knowledge, while Alan Gibson and MayGib were producing - all the ‘OO’ wheels were close or identical to 1950 BRMSB EM profile and classed as OO/EM fine scale. Both firms made the same wheels with a tyre for P4, which was much finer. Note that the BRMSB also had standards for ‘EEM’ - a fine scale version which later became the ‘EM’ standard, the plain ‘EM’ being deleted in favour. I don’t believe Alan ever used an NMRA RP25 profile - though I cannot vouch for the current firm producing under his name. The ‘RP' (NMRA) by the way, stands for ‘recommended practise’ and their are separate codes for the actual profiles. The one we would be interested in is code 110. See: You can get 110 wheels of varying diameters from NWSL in the US. Experiments made while I still had ‘NG Sand & Gravel’ in my possession showed that, with a back to back reduced to 12.45mm, Sn3 wheel sets would track well through type 2 turnouts as defined in the old Product Handbook. The advantage of the 110 profile is a greater width of tread and flange - the latter being well rounded. The BRMSB EM wheel by comparison, was slightly over width for Festiniog wagons, but under width for locomotives - as per the profiles shown in Vignes Atlas. Quite why you have one of my old gauges that measure 14.60mm on the back to back part is baffling. I know I did alter the tongue on the gauge progressively upward from 12.40 to 12.50 - as I found on type 1 and 2 semi-portable turnouts the higher figure proved more reliable. Possibly I did a batch with the wrong cutter (too small) - so the gauge ended up oversize - but this would mean the railhead slots would be on the tight side, to say the least. As regards frame widths for O14, these will vary depending on the type of axle box chosen. Sprung or equalised boxes need a bit of play to work well, plus the tolerance required in the relationship twixt box and axle, required for free articulation. On 24 Jan 2015, at 12:17, John Clutterbuck jclutterbuck2001@... [O14] <O14@...> wrote:
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Re: Was Back to back gauge now other dimensions
开云体育Opps!!! forgot to add in the link....
?
<>
?
Brian
Qld. Aust. ? From: mailto:O14@...
Sent: Saturday, January 24, 2015 11:23 PM
To: O14@...
Subject: Re: [O14]Was Back to back gauge now other
dimensions ?
Keith,
First and foremost, you need to have a look at some drawings for the
prototype, also keep in mind a lot of purpose built for 2ft. gauge loco’s had
the outer face of the wheels running about 3/4”-1” away from the inside face of
the frame, it would be almost impossible to replicate this in model form because
you would quickly have electrical shorts happening,
Some loco’s like Fowlers were built to allow the loco to be used for a
variety of gauges such as the Resilient Fowler Peldon at Amberley in the UK,
this type of loco has the frames set at 985mm, OD, and could be set to run on
2ft. gauge or up to 2’6” gauge, the 2ft. gauge version of the 0-4-0 Fowler like
Ixion released last year has the frames set at 3’11” ID, again it could be used
on 2ft. gauge or up to 2’6” gauge.
See etched model [1/35th scale Fowler DM]
As a general rule of thumb when designing a etch layout for frames I try to
allow a minimum of 1mm. from the outside face of the wheels to the inside face
of the frames, and that’s allowing for about .5mm. side play of the wheels,
however you need to also look at what has to go on the outside of the frames,
ie: fly cranks rods etc. and how thick/wide are they going to be in relation to
the overall width of the loco.
If you want any help or advice on how to set out the artwork, feel free to
ask.
?
Brian
Qld. Aust. ?
From: mailto:O14@...
Sent: Saturday, January 24, 2015 9:56 PM
To: O14@...
Subject: [O14]Was Back to back gauge now other
dimensions ? I am also interested in the other dimensions as well. What is the best width across a chassis eg outer face to outer face. I am playing with a design for a chassis of a Festiniog England and am considering getting it etched along with an etched footplate. ?
Many thanks
?
Keith HC, Dursley
No virus found in this
message. No virus found in this
message. |
||||||||||||||||||||
Re: Was Back to back gauge now other dimensions
开云体育Keith,
First and foremost, you need to have a look at some drawings for the
prototype, also keep in mind a lot of purpose built for 2ft. gauge loco’s had
the outer face of the wheels running about 3/4”-1” away from the inside face of
the frame, it would be almost impossible to replicate this in model form because
you would quickly have electrical shorts happening,
Some loco’s like Fowlers were built to allow the loco to be used for a
variety of gauges such as the Resilient Fowler Peldon at Amberley in the UK,
this type of loco has the frames set at 985mm, OD, and could be set to run on
2ft. gauge or up to 2’6” gauge, the 2ft. gauge version of the 0-4-0 Fowler like
Ixion released last year has the frames set at 3’11” ID, again it could be used
on 2ft. gauge or up to 2’6” gauge.
See etched model [1/35th scale Fowler DM]
As a general rule of thumb when designing a etch layout for frames I try to
allow a minimum of 1mm. from the outside face of the wheels to the inside face
of the frames, and that’s allowing for about .5mm. side play of the wheels,
however you need to also look at what has to go on the outside of the frames,
ie: fly cranks rods etc. and how thick/wide are they going to be in relation to
the overall width of the loco.
If you want any help or advice on how to set out the artwork, feel free to
ask.
?
Brian
Qld. Aust. ? From: mailto:O14@...
Sent: Saturday, January 24, 2015 9:56 PM
To: O14@...
Subject: [O14]Was Back to back gauge now other
dimensions ?
I am also interested in the other dimensions as well. What is the best width across a chassis eg outer face to outer face. I am playing with a design for a chassis of a Festiniog England and am considering getting it etched along with an etched footplate. ?
Many thanks
?
Keith HC, Dursley
No virus found in this
message. |
||||||||||||||||||||
Re: Back to back gauge
开云体育Roy/All,I appreciate your concerns that the standards relate to the wheels you originally produced, so I thought it would be useful to measure my locos and rolling stock which use other types wheels. Results are: Wagons - mainly Alan Gibson OO wheels re-gauged (I'm assuming these are RP25) - 12.4mm Manning Wardle 2-6-2 -? Alan Gibson wheels intended for the 7mm L&B kit - 12.4mm Baldwin 4-6-0 - very old Alan Gibson wheels intended for OO/EM - 12.4mm K1 Garratt - coarse Romford/Markits wheels on 14mm axles re-profiled with Scale7 tool - 12.3mm From the above I would assert that the modern fine RP25 standard wheels set to 12.4mm will work just fine. Interesting the B to B part of my old RCL standards gauge (which O confess I rarely use) seems to measure at 12.6mm. I don't believe my 15 year old (but carefully looked after) Mitutoyo vernier caliper is at fault. Regards John |
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Was Back to back gauge now other dimensions
I am also interested in the other dimensions as well. What is the best width across a chassis eg outer face to outer face. I am playing with a design for a chassis of a Festiniog England and am considering getting it etched along with an etched footplate.
Many thanks Keith HC, Dursley |
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Re: Back to back gauge
开云体育Roy,Can you suggest to me a s newbie a min-max other than 12.40-12.50 that you feel would have wider applicability to O14?
Many thanks
Gary
Gary Shearn
Marlborough | SN8 1PA On 24 Jan 2015, at 11:02, Roy Link
rclpubs@... [O14] <O14@...> wrote:
? ? DISCLAIMER: "Opinions, conclusions and other information contained in this e-mail that do not relate to the official business of Marlborough College shall not be understood as endorsed or given by the College. Any attachments are confidential and may be the subject of legal privilege. Any use, copying or disclosure other than by the intended recipient is unauthorised. If you have received this message in error, please notify the sender immediately and delete this message and any copies from your computer and network" |
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Re: Back to back gauge
Roy Link
开云体育Dear All,Re the proposed back to back gauge being proposed. Note that the min-max of 12.40 to 12.50mm applies ONLY if you have the matching wheel profile - which is that proposed by the BRMSB as ‘EM’ in 1950. This profile was used by Alan Gibson and MayGib and sold by them as ‘fine scale OO’ during the time I was developing and producing my range of O14 kits. I took wheels from both, the loco tyres coming from Alan and those used in the rolling stock from Ken Pelham at ?MayGib. I moulded my own centres in polypropylene - the rolling stock axles were purchased jointly with Alan Gibson in batches of 20,000 (split two ways). Alan sold them for ‘ TT fine scale’. Use of any other wheel profile will cause varying problems - good tracking is only assured if standards are kept to quite strictly - particularly on locos with more than two axles. Mixing profiles, especially those un-published is risky. My standards were the result of practical experiment - based on the old BRMSB measurements and logic. They allowed perfect tracking of small four wheel locos and wagons around sharp radius curves without derailment, either pulled or propelled. A long time ago I did propose that, for models of larger two-foot gauge prototypes, it would be better to adopt modified NMRA ‘Sn3’ standards - which are more sophisticated than those of the BRMSB - which were more guidelines. On 23 Jan 2015, at 17:03, James Hockley jameshockley_38@... [O14] <O14@...> wrote:
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Re: Back to back gauge
开云体育I will be at the bristol show on Sunday with my standard gauge layout "Ultramarine Works" pop round for a chat On 23 Jan 2015, at 17:03, James Hockley jameshockley_38@... [O14] <O14@...> wrote:
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Re: Back to back gauge
开云体育Hi Brian, I agree that would be a good solution (I think they are for 3mm fine scale), but I don't have access to a lathe or the knowledge on how to use one. ?If I did it would a good method to produce a gauge. I am quite far advanced down the road of getting this gauge sorted and I am hoping the price will come down a bit as I can place an order for 30+ units. James? On 23 Jan 2015, at 20:42, 'Brian' rallim56@... [O14] <O14@...> wrote:
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Re: Back to back gauge
开云体育James,
I noticed that Romford [Markits] have a back to back gauge which is
12.8mm., I don’t know what these gauges are going to cost, but was going to
suggest looking at what these Romford gauges cost and just putting them in a
lathe and running .4mm. off.
?
Brian
Qld. Aust. ? From: mailto:O14@...
Sent: Saturday, January 24, 2015 3:03 AM
To: O14@...
Subject: Re: [O14] Back to back gauge ?
Thank you every one who has asked for one.
?
Currently up to 28 units.? I might round it up to 30 and sell a couple
on the Narrow Gauge online forum.
?
Closer to when they are produced I will ask everyone to email me personally
with confirmation of order and address details.
?
Thanks for all the interest so far.
?
I will update on Monday when I have spoken to Malcolm on Sunday at the O
gauge show in Bristol, with any luck a slightly better price, no promises!
?
Regards
?
James
No virus found in this
message. |
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Re: Back to back gauge
开云体育A bit late to the game but please put
me down for one.
Bruce Wilson Barrie, Ontario, Canada Life Member NMRA Member Scale 7 Group Gauge 0 Guild 7mmNGA Member Bird Studies Canada Ontario Bird Banding Association Brereton Field Naturalists' Club Simcoe County Banding GroupOn 23/01/2015 12:03, James Hockley jameshockley_38@... [O14] wrote:
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Re: Back to back gauge
开云体育Hi James,Sorry busy week, crawling out of the woodwork late, could you make me the 29th order?
many thanks
Gary
(David Hughes’ Wessex group)
Gary Shearn
Marlborough | SN8 1PA Office: +44 (0)1672 892366 On 23 Jan 2015, at 17:03, James Hockley
jameshockley_38@... [O14] <O14@...> wrote:
? ? DISCLAIMER: "Opinions, conclusions and other information contained in this e-mail that do not relate to the official business of Marlborough College shall not be understood as endorsed or given by the College. Any attachments are confidential and may be the subject of legal privilege. Any use, copying or disclosure other than by the intended recipient is unauthorised. If you have received this message in error, please notify the sender immediately and delete this message and any copies from your computer and network" |
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Re: Back to back gauge
开云体育Thank you every one who has asked for one. Currently up to 28 units. ?I might round it up to 30 and sell a couple on the Narrow Gauge online forum. Closer to when they are produced I will ask everyone to email me personally with confirmation of order and address details. Thanks for all the interest so far. I will update on Monday when I have spoken to Malcolm on Sunday at the O gauge show in Bristol, with any luck a slightly better price, no promises! Regards? James? On 23 Jan 2015, at 00:48, grant.mcadam@... [O14] <O14@...> wrote:
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Re: Narrow Gauge Modelling, Mickleover, Derby 24th Jan
Hi Simon I'm not aware of any specific 14mm exhibits - the layouts on display are all 16.5mm this time - I have to take what's been offered as it isn't a formal exhibition where invitations are issued and expenses paid. Having said that, I'm sure some of those attending as visitors will have an interest in 14mm and there will be several opportunities to part with your cash - the EDM loco kits can be built to 14mm for example ! Mike
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