Name：3D Printer Bulldog Extruder Upgrade Sliver 1.75/3.00mm for RepRap Prusa i3 Kossel

Gear：stainless steel with Bore 5mm, out diameter 12mm, 40 teeth

Application：Nema 17 42 Stepper Motor

Material：Aliuminum All-metal

Fliament：1.75mm or 3.00mm

Ball bearing：Bore 6mm

Stepper Motor : 1. Size: 42*42*40mm

Stepper Motor Parameter:

Note: Hello, thanks for you buy our product. When you buy our motor or extruder what we needs to be informed for you in advance is that we did a test and found that the wire sequence of our motor cable is different from that of other motors. If we don’t use our matching motor cable, there will only be vibration and sound, but no rotation. So please use it with the cable which we send together with you. Please confirm your machine before purchasing whether it is convenient to change the cable, thank you.

Package List: 

1 x Bulldog Extruder Feeder device kit and 1 x NEMA 17 Stepper Motor.

1. We accept payment via PAYPAL ONLY.

2. Payment must be made within 7 days of auction closing. (Non-payment may result in a UPI (Unpaid Item) being put on your account. Ebay will automatically close your account if you accumulate 4 UPI's total. ) If you placed an order you no longer needed, you can contact me to cancel. 

3. Total Amount Due includes the final auction price plus S&H(Shipping and Handling).

4. S&H will be determined based upon the SHIP TO address. ( S&H does not include customs or any other importation fees). 

1. Handling time: 3 business days.

2. Tracking number: "Economic shipping" without whole tracking information, "Standard shipping" with whole tracking information.

3. Delivery time of "Economic shipping" and "Standard  shipping":

1. The returns should be returned with our original packages. 

2. Defective products must be returned within 30 days. 

3. Customers must contact us first for the return address.

4.In all cases, buyers pay for the shipping fees at their own cost to return products for exchange or 

refund. We will be responsible for the postage of replacements.

5. Please kindly feel free to contact us first, if you receive the items with quality problems or damaged, we would like to offer replacement or refund service for you.

1.Your better feedback will be an encouragement for us to offer the better quality and the better service in future.

2.If you are not satisfied with them, please contact us first via Contact Seller. Your messages will be answered within 1-2 business day. We shall try our best to solve your problem to your satisfaction.