There are a lot of parts that went into the plinth [apart from the modded Lenco of course] as well as the base which needed to be made from scratch. These were all modelled in AutoCAD first and then full size templates made to work from. The timber/ alucobond composite used was particularly successful, both from a functional and acoustic view. It is very solid and 'dead'. The sorbothane blocks under the main base allow a bit of extra tuning by altering the density and possibly combination of material. The phono preamp support in the base was more a bit of fun. the two crossed over arms are suspended from brackets fixed to the main legs in reference to the way the Lenco used to be hung from springs. I like the idea of filling the metal legs with a gel or high viscosity fluid to tune the damping so I'm going to fit some simple oil nipples to do that without making a big mess.
Detail shots from the end of the marathon build. I sure like the curves a lot more now that it's finished because I'm never doing it again. More importantly they do actually work in terms of supporting, spacings etc. If it had been a big rectangular block I probably couldn't lift it which could be embarrassing. For a fat thing [a hundred and sixty pounds turntable and base] it's hips don't look too bad.
AirTech MG-1
Air Bearing Arm. Almost looks like it was always meant to be there! The original design only had two armboard locations but the Airtech was irresistible at the price. Certainly my apprehension about setup difficulties, having never used or even heard an air bearing before, was unwarranted. It is really nicely made and a pleasure to use. In fact it turned out to be rather easier to fit than any pivot design I've used.
Grace 707
Beautiful old arm. A doddle to fit with the quick release armboards. I had to buy a complete [and rather nice] Connoisseur BD1 turntable to get it.
I am not quite sure how the top three photos are related to the bottom three - where are you planning to put the multi-arm plinth? Looks great though! byron
