About the Design

The OCD maker in me drove this design. While I love colour prints I got sick of reprinting the whole part every time the blade wore out so I made a modular system. At the same time I resolved the edge sharpness issue that all printed scrapers share.

In my experience, all printed scraper blade edge sharpness is limited to the layer height. Ex: Even when printing at .12, the blade edge will be .12 high which is not thin enough to fit between the part and the bed like a thin metal blade can.

The result you end up pushing or banging into objects rather than separating them from the bed. To fix this issue I built a drill adapter that allows you to to easily efficiently sharpen the blade to make it perform like a metal one.

Features:

1. Separate handle with screw on blade.
2. Round blade has a much larger surface area and lasts much longer than straight scrapers.
3. 2 blade sizes to satisfy the most discriminating scraper user.
4. Scraper is easy to use on bed in tight areas.
5. Weight and shape makes it feel like a proper tool.
6. Tool allows easy blade threading even when seam lines interfere.
7. 3/8" shank drill adapter makes sharpening easy and consistent.
8. Blade life can be extended by sharpening.

Sharpening

To sharpen the blade, mount the adapter into your drill or click into your driver.

Try to use 200 grit or coarser and DO NOT spin at high speed. PLA is notoriously difficult to sand and will just melt at high speed and softer sandpaper.

Once mounted on your drill, start spinning it and sand the edge of the slope sloped side of the blade. try to only sand 1mm from the edge, the rest is a waste of time.

When re-sharpening, put your sanding block on the edge, perpendicular to the bottom. Once all the chips are removed, repeat the above step to make it thin again.

You only have about 2mm of material to work the edge before you need to print a new one.

Notes:

• The pre-sliced plates have different infills for different objects. The drill adapter is 100% infill for max strength, the tool is at 50%, etc.
• Print as sliced but be sure to use a glue stick or Magigoo. I didn't have to use brims with Magigoo.
• I printed using PLA because of it's stiffness which allows it to hold an edge. If you use PETG, let me know how that works out.
• Please note that I assert trademark and copy rights on the design and accompanying documentation.

Closing thoughts:

I hope you enjoy the scraper. Let me know if you need different blade types and make sure to follow me if you like the design. I will be releasing a very pretty straight edge style scraper soon.