What About The Bee
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Posts posted by What About The Bee
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Thanks for the update Rana. I appreciate you taking the time to inform us of how it went.
Tis a pity. The man has essentially destroyed his own business by poor customer service
Bee
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4 hours ago, Going Spare said:
...Date from the Tri-ang era when what is now radius 1 (15") curves were the outer curves and 12 3/4" radius curves were widely used...
There comes a time when the flanges simply will not fit into the curve. Wow.
Thanks @Going Spare, I did not know that.
Bee
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That's one way 'round a second radius curve. Remove the flanges on the center wheels.
A Robert Stephenson patent!
Bee
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Nothing wrong with your instruction 96, I just wanted Haywire to understand the matching of polarities.
He has a 50/50 shot of getting it wrong if he randomly makes the connections.
Hopefully, this prevents a bit of frustration.
Bee
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To insure that 96RAF 's instruction functions properly, you must be careful to get the polarity right
Controller A: Green - ; Yellow +
Controller B: Black - ; Red +
That is, green and black are both negative. Yellow and red are positive.
If you flip the polarity on one or the other, and follow @96RAF's instruction, it will short, every time.
Bee
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Re: cab glazing
I have seen YouTube videos in which this product is demonstrated
https://www.microscale.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=MI-9
Gave very realistic results and did not look to be over fiddly in application.
I do intend to try some first class LMR carriages. Many of the compartments had glazing, so this is what I intend to use.
Bee
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Hello Haywire
You have two separate controllers. The colors represent that separation.
Additionally, NTP placed white bars on your plan, indicating isolating fish plates. Never connect two power supplies to each other, they must be isolated
Bee
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No worries @81FI had no idea which parts would go to a 3 rail, so I just took a guess. Thank you very much for correcting the record.
I've quite a few of these Romford parts on hand in various configurations and have spent the last 10 days or so reverse engineering the selected elements into CAD. I am trying to get the CAD to match the parts as closely as possible, as these will form the underlying basis of a new design effort. I've done enough to know that the concept is achievable. I need to work through the details, such that I get it as close to right, the first time. More on this later.
Bee
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Hello 81F
If I recall properly, the front pony truck moves relative to the chassis. There is a connecting bar which allows roll, pitch and yaw at two screws.
How is that represented in the model? I can see the front pony truck, but not when it takes any other orientation than straight ahead on flat and level track.
Bee
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Are these the axles you are describing?
https://www.scalelink.co.uk/acatalog/Locomotive_Driving_Wheels_.html
Scalelink also has a wide variety of wheels, nearly all of which have isolated tires, the center being plastic.
Bee
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10 hours ago, 96RAF said:
Please do not assume we are at your beck and call
Another dream crushed 🙁
😄
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In fairness to the driver, it looks like he hooked the overhead signal assembly. It shakes right at the start of the video. So he was in trouble straight away. The tractor (of a tractor trailer combination) typically has 550hp, which will not be enough to pull up concrete footings for the overhead signal assembly. A limiting factor.
The crossing gate itself is typically break away in the US, meaning the tractor could snap it like the twig the crossing gate is. Not a limiting factor.
The smartest move was getting away from the crossing, once he understood he wasn't saving his very expensive tractor.
Bee
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Excellent news Deem. I look forward to the next step, waiting patiently.
Bee
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Bad assumption in my part 81F. I did not wish to offend, but only to assist. My apologies
Bee
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Superglue Debonder is either acetone or propylene carbonate, an acetone substitute. Dependent on the name on the tin. Pull the MSDS sheet for the product to see what the active ingredient is.
Bee
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Hi Deem
There are lots of photoediting tools. I use "Photolayers" for Android. Like any tool, takes a bit getting used to. I superimposed a 4 mm spanner onto your image, cutting away the background of that layer, such that your image shows all around it. Magical!
A note about screwdrivers and how they are designed. Yes, there is a design.
The width of the screwdriver should go fully across the slot in the screw. The tapered sides of the screwdriver should engage the top of the slot. The tip of the screwdriver should NOT touch the bottom of the slot.
Why?
Maximum torque, as the maximum radius from the center of screw rotation is obtained (full width). No deformation of the screw (tapered sides contact top of slot).
If the screwdriver is too small, the corners of the blade will dig into the slot, destroying it.
Watchmakers grind their screwdrivers to match the screw, using the above design criteria. You should endeavor to match their practices, as we also have tiny parts.
USE THE RIGHT TOOL FOR THE JOB. Put your loco aside until you get a spanner.
Bee
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Hello John
Welcome Aboard.
Smoke generators are heating elements. They can and will burn out. A genuine Triang part for your Davey Crockett will be difficult to source. They do occasionally pop up, but they are hen's teeth.
Generic smoke generator units are available. https://www.ebay.co.uk/itm/272065037373 Dunno if it will fit.
Search term "model train smoke generator" will bring you to an array of units.
Bee
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8 minutes ago, ntpntpntp said:
I'd be attacking it with a cutting disc in a minidrill, and replacing with a new nut and bolt.
Precisely!
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Use track planning software, like SCARM or similar. Far superior to paper templates, think of it as virtual templates if that is helpful
Bee
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Can you not get a spanner on the nut like so?
4mm, per your data. It will not be flat to the nut, but you should get angled purchase on the nut.
Bee
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Hi Deem
Get the correct spanner for the nut. Needle nose pliers will launch parts into oblivion. Adjustable wrenches are not ideal. A fixed spanner is much, much better. Do this first. Measure across the flats of the nut for the spanner size. This means you can apply torque properly.
If the screw and nut are dissimilar materials (example: steel screw, brass nut) then galling may have occurred. Galling essential locks the screw to the nut and may be terminal. Sometimes, but not usually, alternately tightening and loosening the screw will break this bond. Typically, this simply shears the screw apart, rendering both nut and screw useless.
You may have to replace both. Not overwhelming, simply measure the major screw diameter, which tells you the screw size. Measure the length. Match the screw head type. Use the same material for both parts!
Plenty of fastener houses in the UK, but not all will stock the micro sizes. Markits catalog suggests they have a wide assortment of BA screws, in tiny sizes.
Bee
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The internet suggests acetone will soften dried superglue.
TEST IT FIRST, in an inconspicuous area, to make sure it won't damage anything.
Use a cotton bud, saturated in acetone (nail polish remover) and rub onto dried superglue (cryanoacrylate). It will soften. Rub material away.
You can probably take it down to the plastic and clean it off completely.
Remember to test against the plastic and finishes first.
Bee
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First time, ever?
Uncertain
First time for Hornby?
No reason to doubt the statement. Very likely true for Hornby.
And although these coaches are well, well outside of my focus, they do look quite spectacular.
Bee
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24 minutes ago, LTSR_NSE said:
Thank you @What About The Bee & @Aussie Fred for correcting my misunderstanding.
I didn't know the answer either LT&SR_NSE. So I asked the internet. I should have just asked Fred, who did!
Bee
Triang/Hornby loco surprise.
in General Discussion
Posted
Why not add some brass axle bushings and give it another 60 years!
Bee