Jazz 7mm Workbench

[jazz]

Chugging along nicely.  All parts slotting together with minimum of fuss. A very well designed kit.  Because of the many variations to kit allows there is a lot scrap created. A shame so many nice etches are not required. 

 

As can be seen a thin spacer of plastikard is suggested to life the body to clear the wheels and bring the buffers to correct scale height. 

 

Quite enjoying this build.

 

[jazz]

Only a very small amount done yesterday, I've caught up on the build today.  Not much left to now, the cab interior will be the most fiddly to do.

 

A load of lead weight has been added to the boiler/smoke box giving all the weight over the driving wheels.

 

[jazz]

Moving forwards a little this afternoon.  Her stable mate is a round top firebox other wise very similar.

 

[Adrian Stevenson]

Hi Ken, just playing catch up on your thread while away on hols. Your pics will be helpful to me once I start my 517 build .

 

Great work as ever.

 

Cheers, Ade.

[ianmaccormac]

Hi Ken, an interesting loco the 517 class, so many variations!

May I ask what the motor/gearbox is that you are using please?

Can anyone confirm there is a variant with a much taller, thinner chimney? I'm sure I've seen pictures somewhere but cannot put my hand on them at the mo.

Lovely bit of building,

Cheers Ian

[daifly]

On 11/10/2020 at 15:30, ianmaccormac said:

Can anyone confirm there is a variant with a much taller, thinner chimney? I'm sure I've seen pictures somewhere but cannot put my hand on them at the mo.

Do you mean like this?

 

The earliest photos appear to show locos with open cabs and taller chimneys. Later photos of the class appear to show a larger diameter boiler and shorter chimney and usually with an enclosed cab and outside bearings to the trailing wheels.

Dave

Edited April 1, 2022 by daifly

[ianmaccormac]

Cheers Daifly, I have found where it was and it has the same tanks as in the kit. 202 that was in an early MRJ, a scratchbuild by Guy Williams. Lovely photo though!

[jazz]

3 hours ago, ianmaccormac said:

Hi Ken, an interesting loco the 517 class, so many variations!

May I ask what the motor/gearbox is that you are using please?

Can anyone confirm there is a variant with a much taller, thinner chimney? I'm sure I've seen pictures somewhere but cannot put my hand on them at the mo.

Lovely bit of building,

Cheers Ian

Hi Ian.  I'm using the excellent Taff Vale Models replacement for the Mashima 1833 and their 40;1 gear box.  I've been very pleased with them on some previous small loco builds.

[ianmaccormac]

Cheers Ken, I'll investigate those.

Many thanks

Ian

[LaScala]

All you could ever wish to know about chimneys was in a 2013 thread by Ozzyo

[Regularity]

I’ve got one with a tall chimney:

(Old photo taken with a 2Mb camera.)

[ianmaccormac]

Thanks LaScala, I even commented in that thread there about a 4mm kit I was building at the time! Forgot all about that! Cheers. Am drawing up a 3D printing one for my use now! Cheers Ian

p.s. Apologies Ken as this has drifted from your superb build! Hopefully leave you to continue now. Cheers Ian

Edited October 12, 2020 by ianmaccormac
apology

[jazz]

No problem Ian, all interesting reading.

[jazz]

Made more progress today by starting the painting.  Pictured is the Taff Vale Models 1833 and their gearbox.  A small amount of work and it make a quiet and smooth running unit.

 

[jazz]

Except for transfers and number plates it's now ready for traffic. (Sorry for the poor quality of photos, taken in poor light conditions)

 

The next one on the WB will be a B12 by request from Geoff.  The Zero Zephyrs tank kit will be after that.

 

 

 

 

 

 

 

Edited October 14, 2020 by jazz

[jazz]

The past fews have been spent finishing the part built Connoiseur Models B12.  Mainly just the detailing needed doing.    The original builder did a very nice job on it.

 

I'm now waiting on delivery of some small valves that fit in the left side of the smoke box and fit the thin pipes to them.  Then I can clean and prime it.

 

The back head is left off until the painter has done his job.

 

 

 

Edited October 18, 2020 by jazz

[jazz]

Now starting the Chopper Tank from the Zero Zephyrs kit.  This is to be modelled as an early version.   Starting with the chassis, I'm not using the fold down the sides of the frames. The etch is on the heavy side and I feel the folds would be difficult to achieve a true and square chassis.

 

The came the horn guides the required folding back on themselves. After cleaning the up with needle ties to get the special axle bushes to move freely and fitting the compensation beams the leading one need a fair amount filing off the top of the guides.  Using the rear none compensated wheels as a datum it was easy to get the front small wheels to get the chassis sitting level

 

The rest did not cause any real problems.

 

I have not fitted the sand pipes until the body is built.

 

 

 

 

 

 

 

[Simond]

Ken

 

it looks to me like your chopper has two compensation beams, and a fixed axle.  This is a recipe for potential frustration, as it will remain a “four legged stool”, whereas true compensation should always resolve to three points of contact (or legs on the stool).

 

I’m not sure how much it’ll matter, and I know you’re not a huge fan of compensation anyway, but forewarned is, as they say, forearmed.  Ideally there would be a single, central rocking beam between the central and front axles, if the rear is fixed.

 

will be interested to hear how it runs.

 

atb

Simon

[jazz]

13 hours ago, Simond said:

Ken

 

it looks to me like your chopper has two compensation beams, and a fixed axle.  This is a recipe for potential frustration, as it will remain a “four legged stool”, whereas true compensation should always resolve to three points of contact (or legs on the stool).

 

I’m not sure how much it’ll matter, and I know you’re not a huge fan of compensation anyway, but forewarned is, as they say, forearmed.  Ideally there would be a single, central rocking beam between the central and front axles, if the rear is fixed.

 

will be interested to hear how it runs.

 

atb

Simon

Simon, the leading axle is fixed and has the gearbox on it. Middle and rear axle is compensated.   Pushing it along the track keeps all wheels firmly on the track, so it looks good so far.

Edited October 22, 2020 by jazz

[Simond]

Hi Ken, 

 

sorry, I was back to front, I assumed it was a 2-4-0!
 

The compensation “thing” only matters if the track isn’t flat!

 

watching as always with interest

 

atb

Simon

[jazz]

9 hours ago, Simond said:

Hi Ken, 

 

sorry, I was back to front, I assumed it was a 2-4-0!
 

The compensation “thing” only matters if the track isn’t flat!

 

watching as always with interest

 

atb

Simon

Oh crikey, it's me that's back to front. It's the rear driver that's fixed and has the motor.  The other two have the compensation.  No matter though, it still runs OK over the slightly uneven track at the cross overs keeping the wheels on the track.

[jazz]

Body is going very well.  No issues at all.  The tabs and slots are spot on too.

 

Tomorrow is the turn of the boiler unit. That hopefully is as good as the rest of the body.

 

[jazz]

A little more done today.  It's all down to the detailing now,  there is quite a lot of it for such a little loco too.

 

The cab has so much of it I wonder where the crew would fit. (I have read though, the cab is a fair bit under scale length on the kit.)

 

It's all very tedious soldering on all the very small white metal castings.

 

[Simond]

I remember doing a Springside Hall tender, the springs & axleboxes were about 7 parts each!  I’m sure 2 or 3 would have been enough!

 

but it looks good, so I guess it’s worth the effort

 

atb

Simon

[doilum]

Looking great. In a perfect future world all brake gear will be 3,D printed!