I've been doing these 3D Penrose triangles for some time, and I find the visual effect mesmerizing, especially when viewed head-on. To enhance the illusion, I recommend mounting the triangle at the base of a picture frame, which helps to accentuate the forced perspective. They sell thick frames at different craft stores - here is one from [Amazon](https://amzn.to/4ch4lrn) - Unlike traditional Penrose triangles that are limited to a single viewing angle, this can be admired from a few other perspectives.

This was inspired by an actual statue out in Belgium, where the triangle is curved in order to replicate the effect. Here is the statue by [Mathiew Hamaekers](https://blog.thibaultjanbeyer.com/real-life-tribar-the-impossible-statue/) - once he created the illusion back in 1997, others played with similar models.

If you want to add even more to the effect, try smoothing the edges. I chose not to do so for this iteration to avoid discrepancies between the model and its photographs. I want to make sure that what you see is what you get. Even then, the illusion still works.

The Impossible Triangle - Penrose Triangle

The Impossible Triangle - Penrose Triangle.3mf

The Bitnest is a solution for those who demand efficiency and organization in their creative endeavors. Building upon the compact design of the [Bitnest Mini](https://thangs.com/designer/Roelax/3d-model/Bitnest%20Mini%20-%20Dremel%20Bit%20Organizer-1074465), the Bitnest expands its capabilities with more slots for tools and a drawer unit, making it a complete organizer for a wide range of workshop tools.

**Key Features:**

**Enhanced Capacity:** With increased slots and compartments, the Bitnest holds a broader array of Dremel drill bits and other essential tools, ensuring that everything you need is neatly stored and easy to find.
**Integrated Drawer Unit:** The added drawer provides a secure space for smaller accessories or frequently used items, enhancing the overall functionality of your workspace. This is also where you can store sanding cylinders.
**Space-Efficient Design:** Despite its expanded capacity, the Bitnest Pro remains space-efficient, keeping your workbench clutter-free while offering ample storage. It's only - 8" L x 5" W x 4" H
**Easy Access and Selection:** The thoughtful layout allows for quick identification and retrieval of tools, enabling efficient workflow and productivity. We also added an inner layer height which helps the “front row” bits to be lower than the back row.

**Required Parts:** 2 M3x8 screws and 2 M3x5.7 thread inserts to hold the handle to the box. I used these specific threaded inserts: [Ruthex M3x5.7 Threaded Inserts](https://amzn.to/3REYxQs)

 The handle is faced upward due to the low profile of the box, it's easier to pull from the top than come in from beneath.

Bitnest - Dremel Bit Organizer with Drawer

Bitnest Final.3mf

**YOU CAN CUSTOMIZE THIS MODEL HERE:** [OpenSCAD Editor](https://makerworld.com/en/makerlab/parametricModelMaker?designId=501415&exp=1718764918&from=model_page&key=e6ce4cb6d9c8d95f3325a772de8eda6b&modelName=OpenSCAD+Dremel+Bit+Holder+-+Custom+Dremel+Bit+Maker.scad&scadUrl=https%3A%2F%2Fmakerworld.bblmw.com%2Fmakerworld%2Fmodel%2FDSM00000000501415%2Fmsfile%2F2024-06-18_90e5132ae5df7.scad%3Fat%3D1718764618&type=user&uid=1275421294&unikey=7de2698a-d25c-4366-ad09-ee389ab81a42) - you can control the number or rows, shafts, spacing, etc. 

So, while you can download the model, this was designed to help you edit and customize it as needed using that UI.

Because of the popularity of the BitNest Holder, I wanted to design this in an open format like OpenSCAD. This is a work in progress, and I'll be adding other elements to the design in the future. But this particular style helps you design and control the rows, bit holder sections, etc. You find the [OpenSCAD files on MakerWorld](https://makerworld.com/en/makerlab/parametricModelMaker?designId=501415&exp=1718764918&from=model_page&key=e6ce4cb6d9c8d95f3325a772de8eda6b&modelName=OpenSCAD+Dremel+Bit+Holder+-+Custom+Dremel+Bit+Maker.scad&scadUrl=https%3A%2F%2Fmakerworld.bblmw.com%2Fmakerworld%2Fmodel%2FDSM00000000501415%2Fmsfile%2F2024-06-18_90e5132ae5df7.scad%3Fat%3D1718764618&type=user&uid=1275421294&unikey=7de2698a-d25c-4366-ad09-ee389ab81a42)

This organizer lets you design your very own drill bit holder tailored to your specific needs. Using the easy-to-use SCAD generator, you can craft efficient and customized bit holders perfect for any maker, hobbyist, or professional. Whether you're enhancing your workspace or creating a thoughtful gift, the Customizable Dremel Bit Holder adds a touch of practicality and personalization to your projects.

**Steps to Create Your Custom Dremel Bit Holder**

- NOTICE: Shaft Diameter Make sure that you add at least 3.7 on the diameter. For some reason or another, the diameter from O-SCAD comes out tighter than normal. 
Select the Number of Rows In the "bit_rows" field, specify how many rows you need for your bit holder. You can display up to 10 rows, making it suitable for various storage needs.
- Customize Bit Shaft Per Row Adjust the sliders to set the number of bit slots per row. Each row can be tailored from 1 to 20 slots, ensuring you have just the right amount of space for your tools. 
- Set Individual Row Depth Use the sliders to define the depth of each row. This allows you to create rows that fit different types of bits snugly and securely.
- Generate Your Model Once all adjustments are made, click the "Generate" button to create your custom bit holder model. This will render a preview of your design.
Download Your Model After generating the model, click the "Download" button to save your design. 

I'd love to hear your feedback!

I truly hope you find the customizable bit holder generator useful. Feel free to share any suggestions or improvements you might have.

OpenSCAD Dremel Bit Holder - Custom Dremel Bit Maker Profile.3mf

This is a pen holder that replicates the iconic A-10 Thunderbolt's Gatlin gun. Named the "A10 Pen Holder," it features a rotating cylinder mimicking the gun's barrel, with compartments for pens that move up and down as the cylinder is turned. This dynamic movement allows for an engaging and functional desk accessory.

To ensure optimal performance and smooth motion of the pens, it is recommended to 3D print this item at a resolution of .16 or better.

The “Skirt” openings at the top where the “cannons” poke out through is a tight fit to the cannons. You'll need to use light sanding in some parts of the opening to make it fit tightly. This is by design, so the skirt doesn't fall too far down.

A-10 Cannon Pen Holder

A10 Cannon Pen Holder.3mf

An “M” or #18034 style bobbin and needle organizer. Crafted to accommodate 11 bobbins and 6 Organ needle packs, providing a dedicated spot for each essential, along with two additional compartments for small sewing accessories.

**Key Features:**

**Specialized Compartments:** Features 11 slots for M style bobbins and 6 needle box slots, ensuring a perfect fit and easy access to your sewing essentials.

**Additional Storage:** Includes two square boxes for holding various small items such as thread snips, thimbles, or extra thread, keeping your sewing space neat and organized.

**Notice:** This is made for my TechSew sewing machine, designed specifically for use with Techsew sewing machines, guaranteeing a seamless fit and function within your sewing setup.

**Specifications:**

**Material Recommendation:** High-quality PLA for optimal strength and detail, or PETG for increased durability and flexibility.
**Print Settings:** Recommended with 15% - 20% infill and a layer height of 0.2 mm to achieve a balance between strength and print time, no supports required.
**Dimensions:** 27mm (H) x 175mm (L) x 100mm (W)

**This organizer can fit the Bobbins for the following Machines:**

Techsew 106, 106-18, 106-25
Techsew 0302
Techsew 1460
Techsew 2100
Techsew 2125
Techsew 2150
Techsew 2301
Techsew 2600
Techsew 2603
Techsew 2750
Techsew 2800-B
Techsew 4800
Juki 1541, 341, 1341Consew 206, 205, all machines using #18034 or "M" style bobbins.

"M" Style Bobbin Holder / Organizer

Bobbin Tray Holder.3mf

The Bitnest Mini is a compact and innovative solution designed to keep all your Dremel drill bits organized in one convenient place. Born out of the need to efficiently store and access our drill bits, the Bitnest Mini ensures that your tools are always within reach and neatly arranged. This storage organizer features multiple slots and compartments, accommodating various sizes and types of bits, making it an essential addition to any workshop.

**Key features:**

- **Compact Design:** Saves space on your workbench while providing ample storage for your drill bits.
- **Easy Access:** The tiered layout allows for quick and easy selection of the required bit.
- **Versatile Storage:** Suitable for a wide range of Dremel drill bits, ensuring you have the right bit for every project.

Whether you're a hobbyist or a professional, the Bitnest Mini is the perfect companion to keep your workspace tidy and your tools organized.

Bitnest Mini - Dremel Bit Organizer

Bitnest Mini 2.0.3mf

I was relatively active in the maker community - then the corporate world took over my time. Recently, in an effort to get back that stolen time, I went back to my two biggest passions - Making and Sharing things! I'm from Texas - I'm an Okay-ish Husband - I'm a GREAT Dog Father - Good Enough Private Pilot (Still Alive) - Sloppy Programmer - Successful Entrepreneur - Mid Level Gamer - Passionate Leather Worker - 3D Model Maker - 3D Printer Enthusiast - Mediocre Reader - Active Voter - Former Private Investigator - and I'm an Avid Writer.

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Pinned models

Bitnest Mini - Dremel Bit Organizer

"M" Style Bobbin Holder / Organizer

The Impossible Triangle - Penrose Triangle

Bitnest - Dremel Bit Organizer with Drawer

OpenSCAD Dremel Bit Holder - Custom Dremel Bit Maker Profile.3mf

A-10 Cannon Pen Holder

"M" Style Bobbin Holder / Organizer

Bitnest Mini - Dremel Bit Organizer