# Attachment Tuning

Attachment tuning gives the possibility to compensate for front attachments on the tool. The compensation can be made for each tightening program.

An operator can hot swap an attachment and then select a tightening program tuned for that specific attachment.

Attachment tuning is available for all conventional strategies except for the STwrench.

1. In Tightening program settings, set Attachment tuning enabled to Yes

2. Click on Tightening parameters > Edit

3. Click on the start step.

4. Under Attachment tuning, set Use attachment tuning to Yes

5. Set the necessary parameters for Gear ratio and Efficiency tuning (see table below).

Parameters for Attachment tuning
Attachment tuning | Description | Default
--- | --- | ---
Attachment gear ratio | The Attachment gear ratio is needed to compensate the angle. Minimum: 0.5 Maximum: 3.6 Socket rotation speed = Tool speed / gear ratio | 1.0
Efficiency tuning | Attachment gear ratio combined with the Efficiency tuning is needed to compensate the torque. Minimum: 0.5 Maximum: 1.0 For example 0.9 means 10% efficiency loss. | 1.0