Log in to your Shapeways account and visit www.shapeways.com/mymodels. Here you will see your entire model inventory.
When you hover over a model, you will see the "3D print" button appear.
Click the 3D Print button to be brought to that specific model's page.
Before pacing your order this is a good opportunity to check a few things
Size/dimensions: The dimensions are shown on the left hand side under the model render.
Part count: If your model is meant to only be one single part and it is showing a part count of more than 1, this means you have loose parts that will not be attached to the rest of the model. In these cases you will need to fix the model and update this. You can do that by clicking "Tools" and then selecting "Update" from the drop-down menu
Model render: The model render displayed on the left is indicative of what your print will look like. It is a good idea to rotate and check this to make sure there were no details lost during the upload process
When you're ready to add your model to your cart, click on the material option to the right, and then scroll down to select any finishing options and to add the model to your cart.
IMPORTANT: If you are looking to order a model in different sizes, you will need to re-upload the model again for each different size.
Once you have added all items to your cart, click the cart icon on the top right hand corner and then "Edit cart" or visit www.shapeways.com/cart
Here you can update the quantities for each part as needed, choose a manufacturing speed and choose a shipping speed. Click the "Checkout" button when you're ready to proceed.
This will take you to the "Review Order" page where you can check and edit Shipping and Billing information as well as manufacturing and shipping speeds.
If fulfilling a Purchase Order, you can enter the PO number in the Reference Number field
Once you have finished reviewing, click the "Place Your Order" button