mpfirnhaber Posted June 30, 2015 Posted June 30, 2015 Has anyone found a suitable replacement for the 4mm flex hose found in a few Classic Space sets? I'm trying to rebuild some of them and the real hose isn't cheap to come by - I thought perhaps I could find a few feet of a comparable product and cut my own. Quote
anothergol Posted June 30, 2015 Posted June 30, 2015 (edited) Can't help precisely, but googling for 4mm hoses, reveals that Lego itself probably wasn't producing them. Well if I was Lego, I'd order already existing generic hoses. The main problem is color, but I believe the ones in the space sets were black? I'm sure that they won't fit fine, BUT the original Lego ones -already- don't fit bars (which is why I believe they outsourced them, it's ridiculous how they have to be stretched over a bar, even though it's sturdy, it didn't have to be this narrow, even for pneumatic use IMHO). Edited June 30, 2015 by anothergol Quote
Brickthus Posted June 30, 2015 Posted June 30, 2015 I saved a few links from a while ago. We did manage to get hold of some tubing suitable for pneumatics, in grey, black and other colours. It was a bit smaller than standard LEGO pneumatic tubing, which is also smaller than the tubes used in old Town and Space sets. We put a big order together as a group, for pieces 25m long. I have used about 1 piece of grey and 1 of black for pneumatics so far, cutting to length with a Stanley knife on a sacrificial chopping board. Most companies would be happy to supply a sample of tube so that you can confirm which product to buy. What you would need for pneumatics (or to fit onto 3.2mm rod-based pieces) is 4mm OD, 1.6mm ID Link 1 Link 2 in German, which might be the company we used. Pic 1 shows the tubing. Most is grey with one of the sample pieces in blue. Pic 2 shows that it works well with pneumatic parts, including 3.2mm rigid tubing. Other than that, a google search for silicone tubing 4mm OD 1.6mm ID should help. The old set tubes might have been 2mm ID and made of PVC, not as good for pneumatics as the silicone tubes but able to go onto the old 1x2 plate with fatter twin-prongs that was on the front of the Classic Space ships. Happy hunting! Mark Quote
mpfirnhaber Posted June 30, 2015 Author Posted June 30, 2015 Thanks for the tips. I also asked on BL and it was said that the tubing from Classic Space kits is softer and more pliable than pneumatic tubing. But I found a place to buy 10 feet of black pneumatic, so I'll grab that and see how it goes. Quote
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