You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Features:
.Overview: This model, which is based on the principles of a true inline 4-cylinder engine structure, includes realistic components such as crankshafts, connecting rods, cylinder heads, valve covers, and even simulated sections such as intake pipes, exhaust pipes, and turbochargers. Including the fully simulated oil pan structure and power supply board connectors.
.Functionality: The inline 4-cylinder model adopts FDM 3D printing technology to provide robust materials for the engine, taking stability and dependability into account throughout operation.
.Principle: The internal crankshaft is driven by a motor, which in turn powers the pistons and connecting rods. Due to material limitations, it is not compatible with other RC models but works better as a teaching and demonstrating tool.
.Pre-purchase Notice: Made of high-precision FDM 3D printing meterial instead of metal. There may be visible texture and layering patterns in certain areas due to the manufacturing process. Please exercise caution before purchasing. If you have any questions, please consult us.
Specifications:
.Material: ABS + Electronic Components
.External Voltage for Motor: 5-10V
.Product Form: Fully Assembled Model with Detachable Internal Structure
.Scale: Approx. 1/6 Scale
.Product Weight: 900g
.Product Dimensions: 13 x 11 x 12cm
## OFFER FREE GLOBAL SHIPPING WHICH IS FULLY TRACKED
1. FREE SHIPPING FOR ALL COUNTRIES, and all Les3dprinter  fulfilled orders have a valid tracking number.Â
2. SHIPPING NOTIFICATION: Buyers will be notified when the order has been sent out, Les3dprinter will post a tracking number on the site. Buyers can see the tracking information with real-time updates.
3. PAY EXTRA FOR EXPEDITED SHIPPING: The default shipping service is standard shipping, if you would like to pay extra for expedited shipping, please directly send us a message at service@ les3dprinter .com
##Â SHIP WORLDWIDE & FREE SHIPPING
Regular Handling Time:Â 1-2 Business days
(Also known as Production Time or lead_time_to_ship) is the time between when the buyer places the order until the seller hands the order over to the carrier. )
Regular Transit Time: 5-15 days (Standard Shipping) for most of countries
(Default shipping time, excluding handling time.)
Total Delivery Time = Handling Time + Transit Time (+ any holidays)Â Â
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