Where to “Find the missing parts of the meal-delivery robot” in Honkai Star Rail

Once you have arrived at the Special Purpose Lab, you need to head to the Storage Zone which is located nearby. To get there, simply exit the lab and head straight. You will come across an elevator, which you need to take to the lower floor. Once you're there, head to your right, and you'll see the entrance to the Storage Zone. 

The next step is to investigate the Unearthly Marvel. This is a crucial step because it will reveal a clue on where to find the first missing part. The Unearthly Marvel is a large circular object located at the center of the Storage Zone. Once you're there, interact with it, and you'll see a cutscene. The cutscene will reveal a clue on where to find the first missing part.

To proceed with the search, you need to light up all of the blocks in the Storage Zone. This is necessary because it will reveal the markers that will guide you to the missing parts. To light up the blocks, you need to interact with them. Once you've lit up all the blocks, you'll notice that markers have appeared on the floor that will lead you to the missing parts.

Now that you have lit up all the blocks, it's time to follow the markers to collect the missing parts. You need to follow the markers in the correct order to ensure that you collect all three missing parts. The markers will lead you to different parts of the Storage Zone, and you'll have to interact with objects to collect the parts. Once you have collected all three missing parts, head back to the meal-delivery robot to complete the task.