Design-In Checklist¶
Use this checklist when a SigGear product has passed preliminary evaluation and is being considered for the customer's prototype, BOM or design freeze.
The purpose is to prevent a sample configuration from being copied into a final design without confirming the exact mechanical, electrical and operating conditions.
1. Product Identity¶
Confirm:
- exact model
- reduction ratio / stage count
- driver or no-driver configuration
- encoder / sensor configuration where applicable
- motor configuration for gearbox-only or matched motor + gearbox assemblies
- cable / connector configuration where applicable
2. Mechanical Interface¶
Confirm against the applicable controlled information:
- overall envelope
- mounting-hole pattern
- locating diameter / pilot
- output shaft or output flange
- key / spline / pinion definition where applicable
- motor-side interface
- cable / connector clearance
- required assembly direction
- radial and axial load direction
A public simplified STEP is intended for early packaging and mounting evaluation. Use the controlled configuration drawing for final tooling or production release.
3. Operating Point¶
Confirm the actual application requirement:
- continuous torque
- momentary / peak torque
- peak duration
- output speed
- acceleration and deceleration
- motion cycle
- duty cycle
- ambient temperature
- cooling condition
- external radial / axial loads
- backlash or positioning requirement where relevant
Do not base final selection only on a single peak-torque or no-load-speed value.
4. Electrical and Control Configuration¶
For motorized or driver-equipped products, confirm:
- operating voltage
- current limits
- driver version
- encoder configuration
- communication interface
- control mode
- firmware / protocol revision where relevant
- power-off behavior
- brake requirement if applicable
Detailed control documentation should match the ordered driver and firmware configuration.
5. Sample Test Outcome¶
Record what the sample actually demonstrated.
Useful evidence includes:
- mechanical fit confirmed
- first power-up / communication confirmed
- no-load motion confirmed
- representative load test completed
- temperature behavior reviewed where relevant
- observed noise / vibration reviewed where relevant
- faults or integration issues resolved
- remaining risks or assumptions documented
6. Configuration Freeze¶
Before releasing the next prototype or pilot build, confirm:
- exact product configuration
- controlled drawing revision
- agreed customized features, if any
- motor / gearbox / driver combination
- cable and connector definition
- software / protocol version where applicable
- prototype or pilot quantity
If a later hardware or firmware revision is introduced, re-check the affected interface rather than assuming it is identical to the sample.
7. Production and Change-Control Inputs¶
For a project moving beyond prototype, discuss:
- expected pilot quantity
- expected annual volume
- target schedule
- critical inspection requirements
- labeling / packaging requirements if relevant
- change-notification expectations
- any project-specific quality documentation
Availability and scope depend on the selected product and project requirements.
Design-In Gate¶
Before treating a product as design-in ready, the project should be able to answer:
- Which exact SigGear configuration is being designed in?
- Which controlled drawing or interface definition is being used?
- Which operating condition was validated by the sample?
- Which driver / firmware / communication configuration applies?
- What still needs confirmation before the next build?
If any of these remain unclear, keep the project in engineering evaluation rather than freezing the design.
Engineering Resources¶
Open the Engineering Center Open the Sample Validation Workflow Request CAD, Sample and Quote
Wanrong Wang
International Sales / Sales Engineer, SigGear
wangwanrong@siggear.com
From Design-In to Pilot and Production¶
A completed Design-In review should lead to a controlled configuration that can be evaluated for pilot preparation. Before production release, confirm the drawing revision, exact configuration, operating conditions, inspection requirements and any project-specific manufacturing or documentation requirements.