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Submitting Drawings
While we can take your back-of-envelope sketches and turn them into your product, if drawings are not ‘ready to roll’ there will obviously be time and money spent to rectify this.
Below are some things to remember.
When producing 3D modelling:
• Be aware that it is possible to draw models in computer 3D which cannot be created in fact.
• Ensure there are no clashes.
When submitting files in electronic form:
• Draw everything with a 1:1 scale and send us the model space part.
• Please give a reference dimension as some software has a habit of exporting parts in Imperial sizes.
• Avoid duplicate lines drawn on top of each other.
• Try to have closed profiles i.e. continuous lines with no breaks
When designing your parts it saves material if singles or multiples fit standard sheet sizes:
• ‘Standard’ sheet sizes we use are 2000 x 1000mm, 2500 x 1250mm 3000 x 1500mm and 4000 x 2000mm.
• There are other sizes. If a quantity of parts is required please use a sheet size to maximise sheet use and let us know the sheet size.
• We will advise on ‘nesting’ to make best use of sheet.
• The most common size we keep in stock is 2500 x 1250.
• A 15mm border is required all round the edge of the sheet and between each part on the sheet.
When you require laser cut parts:
• Cutting holes with diameter less than the thickness of the sheet will add to the cost (takes longer to cut).
When you require parts to be bent or folded:
• We will advise if part can be bent with standard tooling or whether bespoke is required.
• On drawing for a bent part show all sizes after bending, and we can calculate the blank length required to suit the tooling.
• We use ‘air-bending’ on our press-brakes (benders). This defines minimum flange length and minimum internal radius as per chart below (courtesy of Bystronic).