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Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sat Nov 09, 2019 9:18 am
by bambuko
Hydrostatic Dazza wrote:
Fri Nov 08, 2019 8:04 pm
That looks sweet. Nice work...
Thank you :thumbright:
I only just test assembled it to see if it all fits OK, before loctiting the wheels on the axles,
and before I do that, I also need to blacken the wheels (if I decide to do so).
I will do the test on my spare/seventh wheel.
Hydrostatic Dazza wrote:
Fri Nov 08, 2019 8:04 pm
...I like the surface plate as well.
One of the few survivors of decline of British engineering/manufacturing industry over the last 40 years that ended up in my workshop :mrgreen:
All three of my past employers ended up being closed down and space thus "liberated" ended up being converted into supermarket :twisted: :evil:
On each occasion I have managed to acquire some equipment :thumbup:

Cranks next...

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sat Nov 09, 2019 12:17 pm
by TonyW
bambuko wrote:
Sat Nov 09, 2019 9:18 am
I also need to blacken the wheels (if I decide to do so).
Why wouldn't you? No full-size loco ever had unpainted wheels (that were not rusty).

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sat Nov 09, 2019 1:48 pm
by bambuko
I tried my spare wheel:

Image

and it definitely looks better/real blackened (rarther than bright steel).
I am not happy with the quality though...
it is blotchy and rubs off easier than it should.
Need to experiment more with temperature, degreasing and preparation before the process I guess :oops:

ps possibly the finish is not as good as I hoped for, because I am using clean oil, rather than old used one?

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sat Nov 09, 2019 7:47 pm
by Hydrostatic Dazza
Maybe the type of oil. Perhaps some good thick steam oil, close to boiling and then dunk the stinking hot wheel . 8)

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sat Nov 09, 2019 8:17 pm
by bambuko
Last time I've done something like this was about 35 years ago :D so there was some re-learning curve :mrgreen:
but, it is all sorted out - I was overheating and burning things.
Much more delicate and ontrolled application of heat (you don't need it glowing red :thumbup: ) resulted in finish I wanted.
No, you don't need old oil! Some people recommend boiled linseed oil - might try it some day...

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sun Nov 10, 2019 10:35 am
by TonyW
Call me old-fashioned if you like, but why not use primer and paint?

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sun Nov 10, 2019 11:22 am
by bambuko
Because you cannot paint flange and thread of the wheel and (as far as I am concerned at least) bright shiny mild steel just doesn't look right :thumbup:

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sun Nov 10, 2019 1:35 pm
by tom_tom_go
I am a fan of chemical blackening and have moved on to this product which is a true four stage room temperature process:

http://www.black-it.co.uk

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sun Nov 10, 2019 1:47 pm
by TonyW
bambuko wrote:
Sun Nov 10, 2019 11:22 am
Because you cannot paint flange and thread of the wheel and (as far as I am concerned at least) bright shiny mild steel just doesn't look right :thumbup:
Oh, I absolutely agree, but there are hundreds of model loco owners out there who think bright shiny steel wheels (and cranks) look just right, apparently.

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sun Nov 10, 2019 2:13 pm
by bambuko
Thank you @ tom_tom_go for sharing - interesting :thumbright:
Main advantage of the hot oil method for me is that it is using things I already have in my workshop, without having to buy additional stuff, for what is a one off, relatively rare operation.

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Sun Nov 10, 2019 2:17 pm
by bambuko
TonyW wrote:
Sun Nov 10, 2019 1:47 pm
...there are hundreds of model loco owners out there who think bright shiny steel wheels (and cranks) look just right, apparently...
and, that is absolutely fine :thumbright: but... I am building this loco to please/satisfy just myself :king:

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Mon Nov 11, 2019 7:56 am
by FWLR
There are girls on the forum and they are well versed in the ways of engineering. It's something of a mystery to boys, that girls can make things out of steel.... :thumbright: Not having ago really....


On the shiny wheels. Don't get me wrong, I haven't much knowledge on how railways ran or do run, has most members know... :lol: :lol: :lol: But don't the bottom of the wheels stay somewhat shiny, as the rails do when they are constantly running against each other... :?:

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Mon Nov 11, 2019 8:38 am
by bambuko
FWLR wrote:
Mon Nov 11, 2019 7:56 am
...There are girls on the forum...
No reason why not indeed :mrgreen: although in these PC times they may object to being referred to as "girls" :lol:
FWLR wrote:
Mon Nov 11, 2019 7:56 am
... don't the bottom of the wheels stay somewhat shiny, as the rails do when they are constantly running against each other... :?:
They do and I hope that with use my wheels will become shiny where they should as well... (and if not I will help with the process :thumbup: )

Anyways... it's a personal foible and there is no right or wrong way, just the way you do it on your railway.

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Mon Nov 11, 2019 8:50 am
by pandsrowe
A bit late to this thread, but one of the things that I have always done when oil blacking is to return the part after dunking in oil back to the flame and allow the oil to burn on the part. Keep on doing this until the depth of black you want is achieved. For obvious reasons you shouldn't do this in a confined space, I always do it outdoors but with the current weather patterns that may be a bit difficult. I have in the past used old engine oil as I believed that the impurities/dirt in the oil would aid the blackening process, but as I no longer carry out my own car servicing I no longer have access to old sump oil so use whatever I have to hand and I haven't really noticed any difference.

Re: bambuko loco works 0-6-2 (Fowler)

Posted: Mon Nov 11, 2019 11:54 am
by bambuko
@ pandsrowe
Yes, I have applied it twice as well to get the right depth of black