Thursday, November 23, 2017

Big brass rudder fitted.


Taking a deep breath, I hacked the rudder support box off the back of my vintage speedboat. Reaching the point of no return, I sawed it off and looked at the resulting hole.

I'd done a really good job of sealing up the inside of the box with epoxy glue. Sadly this was now on the workbench and my hull would now float in exactly the way a brick doesn't* what with a gurt big 'ole in the back.

Plastic sheet built up in layers and ABS glue made a big difference. This was followed by more epoxy to seal things up. The flange around the edge was built up to match the rest of the model - I know this isn't a prototypical feature but I'm not deseaming the hull now.

Next, Milliput was applied lavishly and left to dry for a couple of days. I never have a lot of luck with this stuff normally, but this time it was OK. Most of the filler was filled and sanded away and the results feel smooth.

Finally, a plastic post supports the new rudder. The boat side of the hinge is soldered to some brass U-channel and the plastic fits inside this.

A new piece of wire connects the sterring servo to the blade. It doesn't seem to have much movement, but we'll find out when the boat goes back on the water next week. 

 *thank you Douglas Adams.

Wednesday, November 22, 2017

Warehourse Wedneasday: Church repair, corrugated iron special!

Whitnash church under repair

Our local church is under repair, and it appears they have called in builders from 1954 - how else can you explain the corrugated iron hoardings? 

Building sites have to be well fenced off nowadays to stop da kidz hurting themselves and thieving adults helping themselves. This normally involved big bits of that large flake chipboard whose proper name escapes me at the moment. 

Not here. Proper wiggly tin for that retro building site look. Take away the health and safety notices and we could be 40+ years ago...


Tuesday, November 21, 2017

Brass rudder

If I'm going to mess with the speedboat, I might as well do it properly.

And since the feature I like least is the ugly rudder-support box hanging on the back, I'm going to cut it off and replace it with something nicer.

Nicer, in this case, means a brass rudder with curves based on a roll of insulation tape knocking around the workbench. Using this and a pen to mark the lines, a piece of brass was cut out with a piercing saw (6 blades broken) and then fitted with a tube up the back edge.

This was cut with the saw and two sections removed to be fitted to some square u-shaped channel. Dropping some wire down this turns the whole lot into a hinge.

Operation will be by the angle brass lever attached to the side. I've beefed up the join with some rod that fits through the blade, I don't fancy just relying on the solder.

A quick clean up and all looks OK. I fancy a coat of red paint for this but I'll need to apply that without gumming everything up. 

Monday, November 20, 2017

Emergency superglue


Regular readers will know I'm a fan of Zap products. Their superglue is my favourite and I find the other adhesives pretty impressive too.

Sadly, I've not found them to be portable. At least when I have a bottle in the exhibition tool box, it usually goes off before I get much use out of it.

Which is why I was pleased to find these on the Nexus stand at the recent large scale aircraft show. 5 micro tubes of glue. Left sealed they should last for ages and despite being described as single use, I reckon they are single show tubes. Unless I've broken a lot, one should last a weekend.

I know people will say that you can buy glue from the pound shop for a lot less than 79p a tiny tube, but it never works as well as Zap for me and when I need emergency superglue, I want it to do the job perfectly. There's probably no time for mucking around!

Single use tubes on Nexus.