Send us your freehand isometric or orthographic dimensioned sketches and we will construct detailed 3d parametric solid models of your designs and engineering drawings. The 3d models or drawings will be delivered to you as electronic files.
We designed and manufactured metal lancet arched church windows for a building conservation project. We produced numerous drawings and 3d models. The following paragraphs will give you an idea of some of the solid modelled parts and CAD drawings we produced for the side opening casement metal church windows.
The rebates for the hinges were modelled into one vertical frame section. The other vertical section had the hook for the fanlight pole operated hook and mortice window fastener. The lancet arched sash had a channel running around both sides for condensing and directing moisture away towards the cill. There were two hinge leaf rebates matching the two on the frame.
Each leaf was designed as a separate sub-component of the hinge main assembly. The two leafs had been constrained in the 3d model to rotate around the hinge pin axis. The two leafs of each of the two hinges were then constrained to their fixing points on the sash and the frame. The result was that the side hung sash opens and closes simulating the real units.
The design concept for the window fastener mechanism was a version of a fanlight catch mechanism suitable for a side-opening casement window. The solution we designed was a hook and mortice window fastener mechanism with a loop instead of an handle.This was useful because the church warden used a fanlight pole to operate the first floor UPVC windows that we were replacing.
The friction stay is a custom made version of a standard UPVC window friction stay. This part had multiple sub-components. The final part worked as a four bar mechanism when connected to the frame and sash.
The parts are assembled by defining the constraints between parts. Different constraints allow various degrees of movement to each part and that in turn influences how the connecting parts behave. Because of this it's possible to simulate the movement of all the parts of the real assembly.
Because each virtual part is constrained to all others to various degrees it allowed simulation of opening the sash. By moving either the hook and mortice fastener, sash or friction stay you can simulate and test how the mechanisms are working before going on to make physical prototypes.
We had drawings made for patternmaking, engineering and welding. All of the drawings are linked to the 3d solid models so the drawings were updated when there was a change to the models. This made the management of multiple drawing versions easier.
If you'd like to discuss your CAD drawing requirements with us pick up the phone and call Carl now on +44(0)1274 572240 or contact us easily with our online form.