Search found 164 matches

by Dave Noble
Tue Nov 17, 2015 12:20 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

I'll post U bolt sizes later, could Steve make a bender, I can send sample tubes. It needs to produce bends of exactly the right size as some of the parts being fastened will be quite delicate and won't stand the load involved in pulling up a wrongly radiussed U bolt, so some experimenting may be ne...
by Dave Noble
Mon Nov 16, 2015 11:25 pm
Forum: Freight Rolling Stock
Topic: driving truck suspension
Replies: 11
Views: 13498

Re: driving truck suspension

Hi Andy, Am I right in thinking that each bogie has two separate sideframes pivotted on a central bolster, so that they can pitch up and down, thus keeping all four wheels on each bogie in contact with the rails when the bogies are detached from the underframe. These then would be compensated bogies...
by Dave Noble
Mon Nov 09, 2015 6:21 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Thanks for the info David, I'll give them a try. I'd never have thought of looking for gel when I wanted a filter!
by Dave Noble
Mon Nov 09, 2015 12:44 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Hi Scrat, I've searched the net for coloured Perspex and acrylic and could only find it down to 3mm thick which is no good for us. However, following your post, I've researched and eventually come across Hesaglas, is that what you mean? There only seems to be one outlet in this country. I've ordered...
by Dave Noble
Wed Nov 04, 2015 12:11 am
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Thanks for the link Eddy. I found quite a few pictures too, and today received some brochures on some of the Adlake lamps. This is a type 6013. PB040043.jpg It seems to be a cast version of the 55, it has exactly the same burner inside, except it has a slit for the backlight rather than an adjustabl...
by Dave Noble
Tue Nov 03, 2015 12:35 am
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Fair enough Eddy, but I'm hoping there won't be any claims arising from this project! Hopefully the jitters won't be a problem, it's just that if we could eliminate them it would be better than keeping them. The servos should have a good 100 degrees of movement, and this should help smooth things ou...
by Dave Noble
Sun Nov 01, 2015 11:14 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Don't worry Eddy. It seems I lost the plot a bit with signal allocations etc, so, as some of my replies were not worth keeping on the forum (ie a waste of space) I tried to delete some. I didn't think I had managed to, but it seems I did with one of them. Alan, re winch servos. I suspect a winch ser...
by Dave Noble
Fri Oct 23, 2015 12:26 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Here is a picture of the base being machined today, mainly for the benefit of Jonny and Richard so they can see where they can fit the electronics. The dimensions do not take into account any protrusion of the sockets, which can be located in other places if that is more convenient. The round hole i...
by Dave Noble
Fri Oct 23, 2015 12:19 am
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Sorry Eddy, I may have used the wrong terminology, yes S3 is allocated to Graham. The second left hand bracket is the one in Shildon yard, as far as I know it is still required, but as it was missing from the first list I will now have to order some extra parts for it, though that is balanced a bit ...
by Dave Noble
Thu Oct 22, 2015 6:20 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

I've been checking Guys list of signals, and I don't think it's quite right, would someone like to check. I think we will need. Single post, 1 home (N2) and 1 distant (M1), 1 only. (JW) Single post, 1 distant (M9), 1 only. (EG) Single post, fixed distant, 2 required. (AW, GC) (plus spare by RP) Sing...
by Dave Noble
Thu Oct 22, 2015 5:44 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Richard, thanks for the offer with U bolts. Will you be able to do the cutting, trimming and threading as well, or will you need someone else to help? I reckon there will be about 150 to make! The pipe bender arrangement sounds good, you can then change wheels to make U bolts for the two diameters o...
by Dave Noble
Thu Oct 22, 2015 11:07 am
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Nice job Ben. We will be needing lots of U bolts to hold these pieces to the posts. Anyone fancy helping? I suggest we make them 10BA, from steel welding rod. Any comments? The rod will need cutting to length, ends tidying (linisher), threading each end, and bending in some sort of tool. If anyone w...
by Dave Noble
Wed Oct 07, 2015 7:44 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

The M1 screws arrived today, and I think are much neater than the ones supplied with the shackles and should prevent any catching of adjacent levers. PA070040.JPG I made the shackles a bit narrower by squeezing them onto their respective levers using a smooth jawed vice, with the pin in place to try...
by Dave Noble
Fri Oct 02, 2015 6:51 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

I have to admit that there has been little progress, what with work and holidays, and this brilliant weather over the last week hasn't spurred me onto get on with anything inside at all. Thanks to Eddy for soldering the ladders, lovely job, he even primed them as well. He's done such a good job, I'v...
by Dave Noble
Fri Aug 07, 2015 9:08 am
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Hi Scrat, The problem is not lack of movement, there is plenty with the servo, it is that we can either use a small angular movement (see the two cranks in the picture above) or a large one. Small angular movement makes the movement jittery, a large movement is smoother but makes the operating rod w...
by Dave Noble
Thu Aug 06, 2015 2:41 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Richard, Eddy has offered to do the soldering, but I can keep a couple of ladders back for you to do. Yes, there are a couple of soldering fixtures. Servos/motors were discussed earlier, and I raised the question of jittery servos, but most folks seemed prepared to accept them because of their simpl...
by Dave Noble
Wed Aug 05, 2015 9:11 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Some laser cut parts have arrived, ladder seems to go together OK.
P1030229.jpg
P1030229.jpg (83.96 KiB) Viewed 14960 times
P1030230.jpg
P1030230.jpg (84.37 KiB) Viewed 14960 times
by Dave Noble
Thu Jul 30, 2015 10:16 am
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

Hi Eddy and all, Yes it's been quiet, sorry but had work to do, though I believe that's a thing of the past to some. Haha. I'm looking forward to that. Anyway, I've ordered laser cut parts for the ladders, stays, safety loops, cranks and balance levers. Also a couple of servo bases. I've ordered two...
by Dave Noble
Wed Jul 01, 2015 6:30 pm
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

OK Chris, I've updated the post.
by Dave Noble
Wed Jul 01, 2015 12:00 am
Forum: Buildings & Signalling
Topic: Interested in a signal building group?
Replies: 297
Views: 253128

Re: Interested in a signal building group?

I think it's getting too complicated and messy. Is the reason for using PVC that it is tougher than acrylic? If so, why not make a PVC version of the acrylic base in the pictures. Using 20mm grey PVC, could Ben rout out the cavities to say 17mm deep, cut the holes for the post and 4 bolts , profile ...