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 Forum: Breakdown Crane Modelling   Topic: Platework made easy

John Cafearo
 Post subject: Re: Platework made easy
Posted: 20 Aug 2011, 23:17 

Replies: 2
Views: 14064
Superb Alex, makes me feel like a dinosaur. John

 Forum: Breakdown Crane Modelling   Topic: sand casting..

John Cafearo
 Post subject: Re: sand casting..
Posted: 13 Aug 2011, 00:23 

Replies: 1
Views: 10597
Superb result, but I hope you had written permission from "senior management" to use the best pan and stove!!! John

 Forum: Breakdown Crane Modelling   Topic: 5" gauge Craven 25 Ton

John Cafearo
 Post subject: Re: 5" gauge Craven 25 Ton
Posted: 10 Aug 2011, 00:15 

Replies: 12
Views: 49084
Hi Alex, easypeasy, but you will need a dividing head. The cutters I got from a second hand tool dealer at a model enginering exhibition. The Craven has two sizes of gear teeth, the ones for travelling are a larger tooth form than the crane gears. I have done both sizes but as the travelling gears a...

 Forum: Breakdown Crane Modelling   Topic: 5" gauge Craven 25 Ton

John Cafearo
 Post subject: Re: 5" gauge Craven 25 Ton
Posted: 09 Aug 2011, 00:21 

Replies: 12
Views: 49084
The slewing ring is cast iron and the centrer pillar is mild steel and they are bolted together with 4 fitted bolts. The two photos show how some of the other components were machined in the miller. There are 19 spur gears and 18 bevel or mitre gears on the model, 2 dog clutches and 1 taper clutch. ...

 Forum: Breakdown Crane Modelling   Topic: 5" gauge Craven 25 Ton

John Cafearo
 Post subject: Re: 5" gauge Craven 25 Ton
Posted: 05 Aug 2011, 00:11 

Replies: 12
Views: 49084
Hi, the biggest "gear" on the model. 8 3/4" dia. x 176 teeth plus the center pillar. It only just swung in the Myford gap. Having fallen foul of crane terminology, (see my intro), is it the "slew ring", or "base" ring, please let me know. There were some anxious mo...

 Forum: Breakdown Crane Modelling   Topic: 5" gauge Craven 25 Ton

John Cafearo
 Post subject: Re: 5" gauge Craven 25 Ton
Posted: 26 Jul 2011, 23:53 

Replies: 12
Views: 49084
Hi, more bits. Sheaves and center top, hoist brake disc. John
Attachment:
sheaves and brake disc.jpg
sheaves and brake disc.jpg [ 168.18 KiB | Viewed 37694 times ]

 Forum: Breakdown Crane Modelling   Topic: 5" gauge Craven 25 Ton

John Cafearo
 Post subject: Re: 5" gauge Craven 25 Ton
Posted: 21 Jul 2011, 23:43 

Replies: 12
Views: 49084
Hi, next off was the jib, well you do don't you. 5" wide and 29" long, used 8ft of brass angle and no, I didn't count the rivets. Actually, after a spat with the next door neighbour, 1/16 copper rivets were renamed "Angelas", It's surprising how much pleasure one can get by bashi...

 Forum: Breakdown Crane Modelling   Topic: 5" gauge Craven 25 Ton

John Cafearo
 Post subject: 5" gauge Craven 25 Ton
Posted: 23 May 2011, 23:22 

Replies: 12
Views: 49084
Seeing David's gallery photo's of "my" crane, the Craven 25 ton at NRM, I thought it best send some piccies of my attempt. I will dribble you a few piccie's once a week or so (don't want to get you too excited). First off is the match truck or jib runner, made of wood and tied together wit...

 Forum: Introduce Yourself   Topic: Introduction - Rob Morel

John Cafearo
Posted: 30 Jan 2011, 00:47 

Replies: 4
Views: 16202
Hi Rob, nice to meet you. I like the bit about the shovel, snippets like that make it all the more interesting to us non railway blokes.



John

 Forum: Introduce Yourself   Topic: Introduction - John Cafearo

John Cafearo
 Post subject: Re: Introduction
Posted: 27 Jan 2011, 00:13 

Replies: 13
Views: 39666
Thanks Chris, emergency bogie sounds more like what I was thinking about; confusion in terminoligy on my part, I only know about old steam ships and multi-stage pumps!! John
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