Explain the function and the fit.
Describe the job the part needs to do and the components it must fit. Include key dimensions, units and the features that matter most.
Sketches and photographs can support the discussion, but a photograph alone does not establish exact measurements. Make clear which dimensions are known and which still need to be established.
Creating or changing a model?
For a new model, explain the desired result and any essential constraints. For an existing one, identify the revision and the changes you want. Keep the original and proposed change easy to distinguish.
The scope should cover the modelling work, intended deliverable and revision arrangements. These details are agreed for the enquiry; no fixed fee or included revision allowance is assumed here.
Then plan the print.
Design work and print pricing are separate stages. Once the model and print requirements are clear, the process, material and quantity can be discussed for a quote.
If you want a prototype to answer a fit or appearance question, say what you need to learn. That can help keep the design brief focused.
Make the change request traceable.
Identify the starting model revision and describe the change. A useful note might say “extend this slot; retain the circular reference feature”, accompanied by dimensions and a marked view. Confirm the relationships that must stay fixed and what can be altered.
For left/right or different hole-pattern versions, give each required configuration its own identity. The variant study shows a fictional naming approach. A render can explain the idea; the CAD work must establish the actual geometry and deliverables.
Contact us about a design change · View the revision comparison