This suitcase is specially designed for children when the family having a vacation. Kids could ride on the saddle under which there is large storage space. It's a pity that we adults could not have a real one but a resin prototype.
Solution
Step 1: The client builds the whole model with Solidworks, and exports the STL file for printing. We need to examine the model and make sure the clearance is concerned for assembling.
Step 2: We arrange the parts in software and add necessary supports. Then 3D print them with SLA Generic Resin. The layer thickness we set is 0.1 mm.
Step 3: When printing is completed, rinse the models with IPA and post-cure them with UV. Cut off all the supports, then polish with sandpaper. Spray with putty to make the surface look better.
Step 4: Try to assemble the parts together and adjust the clearance. Color the parts according to the blueprints and then screenprint the logo onto the part.