Search found 19 matches

by bobwallison
Wed Jul 17, 2019 8:13 am
Forum: Starting in P4
Topic: Track Laying
Replies: 31
Views: 1217

Re: Track Laying

So in summary, Paul: 1. Proper MEK, as in methyl ethyl ketone (common name: Butanone) Is exactly the right chemical to use. Mek-pak as sold by Slaters/Carrs/Precision Paints is not, because it is no longer MEK. 2. Set the rail and chairs in the right place and push down gently while you touch a brus...
by bobwallison
Fri Jul 12, 2019 3:42 pm
Forum: Exhibitions
Topic: Scaleforum 2019
Replies: 79
Views: 5319

Re: Scaleforum 2019

I had been quite seriously thinking of going, but having read the programme I feel that there's not an awful lot of interest to me, and certainly not enough to justify the journey and expense. I do think that the format is getting just a bit "same old, same old" and that it needs refreshi...
by bobwallison
Thu Apr 18, 2019 5:02 pm
Forum: Track and Turnouts
Topic: Crossing Vee Jig
Replies: 26
Views: 3384

Re: Crossing Vee Jig

Very elegant method Bob :thumb ….or you could try Baron von Harrap's way, which ruffles feathers but works a treat! https://www.rmweb.co.uk/community/index.php?/topic/37678-handbuilt-track/page/2/ Steve Thanks Steve. I tried Brian's method a while ago but I'm afraid it didn't work for me. Maybe I'l...
by bobwallison
Thu Apr 18, 2019 4:57 pm
Forum: Track and Turnouts
Topic: rail/wheel profile - prototype has problems too
Replies: 22
Views: 1896

Re: rail/wheel profile - prototype has problems too

Oh dear. So any passenger-carrying track of radius less than 8.5 feet in 4mm scale needs a check rail! Best reach for that pack of rail I bought a few weeks back.

Bob
by bobwallison
Tue Apr 16, 2019 2:34 pm
Forum: Track and Turnouts
Topic: Crossing Vee Jig
Replies: 26
Views: 3384

Re: Crossing Vee Jig

I agree with Keith about overthinking angles to 0.01 accuracy. In any case, apart from main lines, the prototype featured some real horror-shows when a standard crossing was shoe-horned into a location where it didn't quite match the required geometry. As for the difficulty of filing the rails for c...
by bobwallison
Mon Mar 18, 2019 5:28 pm
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 33689

Re: Crab Comet conversion

Thanks Dave and Philip. I feared that Ultrascale crankpins would require either a different wheel press tool or opening out to 1.3mm after the GW wheelpress had done its bit. With the latter option, I would be concerned that the threaded crankpin hole would throw the drill off centre. So its back to...
by bobwallison
Mon Mar 18, 2019 8:40 am
Forum: Steam Locomotives
Topic: Crab Comet conversion
Replies: 257
Views: 33689

Re: Crab Comet conversion

DaveB,
I like the idea of drilling Gibson wheels to take Ultrascale crankpins, but how then do you get the quartering right? The slot for the crankpins on the GW wheelpress only takes a 14BA screw.
Regards,
Bob
by bobwallison
Tue Feb 12, 2019 7:08 pm
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

I have just bought a pack of Karlgarin rail from my local model shop, no less. I was in a queue behind someone who was stocking up on Hornby set-track - there's irony for you. First impressions are good. It is crisply rolled in Hi-Ni and without the oil film which seems to contaminate some other man...
by bobwallison
Tue Jan 22, 2019 9:48 am
Forum: Track and Turnouts
Topic: Crossing Vee Jig
Replies: 26
Views: 3384

Re: Crossing Vee Jig

Dave, I have the EBMA jig and use it all the time. It is 1.5mm thick and comes with vee-shaped wedges that are a snug fit in the vee-shaped openings. You use the wedge to hold the rails in the right position both lengthways and vertically while wielding the soldering iron with the other hand, which ...
by bobwallison
Thu Dec 06, 2018 9:20 am
Forum: Guest Book
Topic: DCC Concepts Rolling Road
Replies: 9
Views: 1794

Re: DCC Concepts Rolling Road

Andy, I hope you don't sell all of them for rolling roads, because I would be very interested in the wheel weighing option. What is it with DCC that so much of what they produce turns out to be wide of the mark? 6 bolt fishplates? Point motors that sound like cement mixers, with built in gear slip? ...
by bobwallison
Thu Nov 01, 2018 3:49 pm
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

Andrew, If you wish, I can provide a length of HiNi rail bought from C&L's stand at ExpoEM on 20 May 2018. Cannot help with recent steel rail, unfortunately. Would you also like a sprue of Exactoscale S1 chairs from the batch which has been giving me grief? Bought from C&L in 2017, I think. ...
by bobwallison
Wed Oct 31, 2018 11:56 am
Forum: Track and Turnouts
Topic: Radius Testing - Practical Experiments.
Replies: 60
Views: 6287

Re: Radius Testing - Practical Experiments.

Knuckles, The discussion above has focused on buffer locking and couplings, but I would urge you not to overlook the problem of clearance between bogie/pony wheels and fixed obstructions like cylinders, footsteps and (for pacifics) the rear frame extensions. I have converted a Hornby Black 5 to EM g...
by bobwallison
Fri Oct 26, 2018 11:23 am
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

Thanks Stephen. I'll have a look for that.

Regards,
Bob
by bobwallison
Thu Oct 25, 2018 12:42 pm
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

Andrew,
Many thanks for the above and I look forward to hearing more.

I have emailed C&L concerning the profile of their HiNi rail and including a link to this thread. With their agreement, I will post any reply here.

Regards,
Bob
by bobwallison
Wed Oct 24, 2018 6:11 pm
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

Thank you John and Martin for answering my plea about posting links on the forum. I wonder if people's different experiences are down to timing? Dies wear out, as do moulds for plastic injection, and probably not at the same rate. The Exactoscale chairs and Hi-Ni rail I bought six or seven years ago...
by bobwallison
Wed Oct 24, 2018 8:25 am
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

In the interest of completeness/fairness are you planning to repeat your experiments using Exactoscale/p4 track company steel rail? 'Fraid not Jonathan. Apart from any other reason, all my stock of steel and plain n/s rail is at least eight years old and may not be representative of recent producti...
by bobwallison
Tue Oct 23, 2018 4:04 pm
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

Hi Peter. Yes, there should be 1 in 20 inclination and yes, having looked carefully at the sample, it is more vertical than it should be. But It was never my intention open out both the jaws and the base for a production run - life is too short. My favourite at the moment is method 2, which gives th...
by bobwallison
Mon Oct 22, 2018 5:12 pm
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Re: Chairs and Rail

Thank you everyone for your replies; the positive, practical experience reported by Tim, Colin and David is very reassuring. A while back, Howard Bolton posted some excellent end-on images of Exactoscale chairs on Hi-Ni rail (follow the link in the second post of this thread). Out of curiosity, I pr...
by bobwallison
Wed Oct 17, 2018 4:11 pm
Forum: Product Information
Topic: Chairs and Rail
Replies: 51
Views: 7667

Chairs and rail

This is my first post on this (or any) forum, so my apologies in advance if I breach protocol. Back on page 6 of this thread there was a discussion about chairs not fitting rails. The problem has been mentioned in a couple of other threads as well, but I cannot find any posts that actually suggest a...

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