Practical guides to defining a motion application, preparing a retrofit enquiry and connecting a design to manufacturing. Use them to organise the information for your next technical conversation.
A requested stroke and load are useful starting points, but they do not describe the full application. The motion profile, operating environment and surrounding machine determine what else needs to be considered.
Describe the movement and load path
Record the required travel, movement speed, operating orientation and available installation space. Describe how often the drive operates and whether the load must be held when movement stops. If the information is incomplete, identify what is known and what still needs to be established.
Make the environment specific
Explain exposure to dust, moisture, salt, cleaning or other contamination. Describe access for inspection and maintenance. A general request for a “rugged drive” becomes more useful when it is connected to real operating conditions.
Define the interfaces and fallback
Include mounting information, power supply, controls and the feedback the machine needs. Discuss position and load monitoring, manual operation and the boundaries of the validation scope.
Function, travel, speed, load and duty cycle
Space, mounting and orientation
Environmental exposure and maintenance access
Power, controls, feedback and manual fallback
Motion application checklist
A plain-text worksheet for collecting the initial requirements. Fill in what you know and mark open questions for discussion.
Give a replacement project a useful starting point.
A failed or obsolete component is often only one part of a larger machine. Before selecting a replacement, describe the original function, the observed problem and the interfaces the new assembly must retain.
Identify the machine and assembly
Collect the machine designation, component identification and any existing drawings. Clear photographs can help explain the installation. Keep confidential drawings for an agreed exchange channel rather than including them in an initial general enquiry.
Separate symptoms from assumptions
Describe what happens, when it happens and which operating conditions are known. State whether the issue is wear, a fault, inadequate performance or unavailable spare parts. Keep unconfirmed explanations separate from observed behaviour.
Consider the next replacement too
If the assembly is likely to be needed again, discuss drawings, inspection information, component selection and repeat manufacturing at the start. The scope can then address the immediate need and a planned lifecycle solution.
Retrofit enquiry checklist
A short worksheet for machine identification, the problem description and the desired outcome.
Connect design decisions to the manufacturing handover.
A CAD model represents geometry. A manufacturing handover also needs to communicate the selected material, functional requirements, inspection approach and agreed configuration.
Keep the basis of the design visible
Record the load cases, relevant assumptions and interfaces behind the design. For plastic parts, consider the relationship between material selection, wall thickness, tooling and moulding behaviour. For mechanisms, retain the connection between movement, loads and component selection.
Agree what is being delivered
Define whether the work package includes CAD, production drawings, calculations, prototypes, sourcing or inspection information. A focused drawing task and a complete product development require different handover scopes.
Plan the route through prototypes and inspection
Link prototype checks to the functions they need to establish. Document the selected configuration and decide which production and inspection information is needed to support repeat manufacturing.
