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Mr Grumpy’s Workbench: MOK 9F occasional updates


Mr Grumpy
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The wheels and plunger pick ups arrived today andI Couldn't resist temporarily putting the wheels on the chassis. It rolls along beautifully. Hope that continues after I fit the con rods!

 

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Hopefully the chassis will be complete by the weekend.

 

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The chassis looks to be sitting nice and level, these MOK kits are second to none.

 

Still you have had a result with the Slaters wheels, usually the rust is already present. At least Mr White doesn't charge extra for that although he would if he could.

 

All the best,

 

Martyn.

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I'm not clear how the compensation works on this chassis. I presume, to give proper three-point suspension, the rear axle has a centre rocking pivot?

Dave.

Hi Dave check out post 284... all is revealed!

Yes, the rear axle rocks in a cradle. The chassis really is exquisite! And virtually idiot proof. Dry runs are easy, although I should have done this with the rear stretcher.. but thankfully no harm done!

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Hi Dave check out post 284... all is revealed!

Yes, the rear axle rocks in a cradle. The chassis really is exquisite! And virtually idiot proof. Dry runs are easy, although I should have done this with the rear stretcher.. but thankfully no harm done!

Oh, right. I thought that must be something to do with the drive gearbox!

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No interest in the 14xx, but there's an instant emotional response to those etched sheets. I'm becoming a sucker for complicated etched challenges. I'll cheer you on from a safe distance...

It's no good wanting a 9f unless you build a rake of MMP 16 tonner's to go with it though....

Edited by markjj
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It's no good wanting a 9f unless you build a rake of MMP 16 tonner's to go with it though....

Life's not long enough, especially at my age, and I have no interest in O gauge at all, I really haven't, no honestly nothing at all,,,,,,

 

NURSE!!!!

 

 

Mike.

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Life's not long enough, especially at my age, and I have no interest in O gauge at all, I really haven't, no honestly nothing at all,,,,,,

NURSE!!!!

Mike.

How can you not be interested in 0-gauge.... you need sectioning not a nurse lol.....
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I deliberated over making the horn block keeper plates removable. In the end I soldered them in as once the chassis springs are fitted, I couldn't see a way of removing them.

However, I have soldered 14ba nuts to the rear of the brake shoe hangers and inserted a screw so that the brake linkage and shoes can be removed along with the wheels for painting. 

I have also got the slide bars in (Thanks Mark!) and the centre steps fitted. I found I had two identical front sand boxes sent by mistake, so will get those fitted soon. I'm hoping to have the con rods made up  along with the life guards tomorrow.

 

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I'm hoping to add a driver and fireman.

Please could anyone let me know the best models avaliable?

 

I did tentatively think of having a 3D resin casing of my self driving, but thought a square blue chap with a hat wouldn't look prototypical :-)

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Best drivers? Well, there's Modelu who will 3D print some excellent figures scanned from real life. and...you can even get yourself scanned and 3D printed in a scale of your choice.

 

I couldn't afford the quantity of resin needed :-)

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I don't have a great deal of progress to report, as I have had a bit of a self inflicted war with the coupling rods.

Problems began when a countersunk 6 ba allen slot screw refused to budge from holding a wheel in place. Unfortunately, the allen key slot rounded, resorting to drilling the offending screw out.

Slaters did replace it for me a couple of days later.

The 12 ba crankpin screws were 'cheese head' and fouled the chassis, so I drilled in to the rear of the wheel and sunk them in. Possibly during this exercise, I may have inadvertently caused the screws to not sit at right angles to the wheel faces :-(

Anyhow, this took a lot of faffing, decrying kit building forever, threatening to go RTR 00 etc. etc. Poor Mark JJ got the brunt of this, and Mr Dog Star also advised. During a conversation with David Sharp, he advised to open the con rods a tiny amount, and every thing put together has worked! The chassis is incredibly free running now, so I can cheer up and should have the brake gear, etc on soon.

 

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Edited by Mr Grumpy
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I do not know if you have one but when drilling out for the crank pins , etc, I think a pillar drill is a must it keeps everything from drifting out of true.

Martyn.

Thanks Martyn,

I have been busy selling a fair bit of stock so the pillar drill is next on the agenda :-)

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....there's Modelu who will 3D print some excellent figures scanned from real life. and...you can even get yourself scanned and 3D printed in a scale of your choice. 

 

I did wonder if they could scan a horse and rider, but think that would work out a bit extravagant!!

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