Automating the Solderer

Let the Crafter with the solderer recipe patterns face the Solderer and the Crafter will be able to insert the items straight into the right slots.

Then, stick an Importer on the Solderer to suck up the processed item.

Efficiency

For efficiency reasons, it is recommended that you split the different patterns between multiple solderers.

That is better because then Refined Storage can craft faster because there won't be a single Solderer in use constantly waiting for the other recipe.