Bambu Lab Scraper for Plastic Blades and Razors

V2 UPDATE:

Improvements:

• New angled blade, allows for better ergonomics and comfort scraping at a lower angle
• No supports needed
• Added hole for hanging
• New long handle version
• Improved tolerances
• Combined print profiles for Default, M3, and M3 insert versions
• Ledge for blade clamp increased for better blade retention and resistance against prying forces

STEP files for the new V2 short and long handles are also now available

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V2.1 Update & Licensing:

After using this scraper for over a year and experimenting with other designs, nothing beats a simple design, accordingly I have found slightly increasing the blade clamp ledge helps with retaining the blade when used with a light prying force on priming lines and brims. Although I am aware of the hardware-less version utilizing a dovetail, removing the blade clamp can prove to be challenging if there is soap or oil involved when using the scraper for tasks like removing stickers and decals. 

I realized this quick swap design is more well suited for possible commercial usage where being able to swap the blade or flip it around for a fresh edge is utilized more frequently than say if it was only used for removing prime lines on a print bed. The license of the model has been updated to allow for commercial usage, users are free to print and sell provided users purchasing it are notified that they can find the model on Makerworld for free. This does not grant permission to sell or distribute the digital model in any shape, way, or form.

About

I wasn't able to find a scraper handle that I liked so I decided to make my own. Made to work with common plastic blades which can be bought and replaced for cheap. Handle allows for tool-less swapping of blades with a satisfying click in place.

This handle makes use of the screws for the Bambu scraper that comes included with your printer. If you do not have them (or want to make more scrapers), an alternative version for M3 screws as well as M3 inserts is also provided.

If none of the above works for you, I have additionally provided the STEP files for you to remix and customize to your liking.

Notes:

The new V2 blade clamp prints standing up at an angle, please ensure your bed is clean and has good adhesion prior to printing.

Assembly

The Blades:

Note: Several users have reported some blades may be incompatible due to the middle post being smaller or offset. After purchasing from multiple sellers and listings I have found there can be variances in the blades primarily with the middle hole. While the middle post does add stability against horizontal sliding it is not necessary for blade retention and hasn't been noticeable when missing. A new 4th plate has been added with the middle post removed for convenience, alternatively you can use side cutters to cut the middle post off.

Printed blades aren't as durable as the injection molded razor blades and it is much cheaper and economical to buy a pack of blades rather than printing them out which is why I have not provided a model of the blade as part of the print profile. You can find these razor blades through Amazon, AliExpress or maybe even your local home hardware store. Note it is much cheaper to buy from AliExpress, but you will need to wait for shipping. Prices and availability may vary depending on where you live.

Amazon (Canada)

AliExpress

Changelog

2024-02-24 - Initial upload

2024-02-27 - Added assembly instructions

2024-03-01 - Added 0.12mm profile

2024-03-12 - Upload new V2 version

2024-03-19 - Update assembly animation

2025-10-25 - Ledge of blade clamp increased for slightly better retention against prying forces, added option of no middle post for wider blade compatibility

Need to clean up flow calibration lines quickly? Larger version is also available

https://makerworld.com/en/models/207326#profileId-431134