3D-Printed 135 Wide-Format Film Camera Falcon P-35 Project Hasselblad XPan

Open Source Information (ENGLISH translation now available, please scroll to the bottom)

April 26, 2025 Author: 黑白影趣 (Bilibili, Xianyu, and RedNote)
Project Name: Falcon P-35 Version 1 (Official Release) Subsequent updates will be forthcoming, please stay tuned!

Special Note: The author is currently a high school student. This series of 3D-printed film cameras is an original creation. Open-sourcing aims to better showcase the practical significance and value of technological innovation.

(The initial upload of the flat design contained a problematic blade; it has been re-uploaded on February 25th)!!!

The Mamiya Press lens adapter version is now available

Film photography enthusiasts are invited to freely print and assemble their own wide-format film cameras. Construction is straightforward; video tutorials will be progressively released on Bilibili. Your feedback, modifications, and improvements are most welcome.

Contact Information for the Open-Source Author: WeChat zsq15983556719 QQ 2897769642
Email shengqiangzhang84@gmail.com Contact me to join the WeChat discussion group.

This design is a non-profit project, however, DIY enthusiasts with 3D printers are permitted to assemble and sell the cameras.
When selling or sharing, please explicitly attribute the model to the original creator: “黑白影趣”

Bilibili Video Links for Functionality and Structural Overview:
【3D-Printed 135 Wide-Format Film Camera: Open-Source Final Preview; 3D-Printed XPan Arrives! “Falcon P-35” Project - Bilibili】 https://b23.tv/uQwttoB

Official Open-Source Introduction:
【Officially Open-Sourced! 3D-Printed 135 Wide-Format Film Camera Falcon P-35 Project - Bilibili】 https://b23.tv/QAEOxW2
(Subsequent printing instructions and assembly tutorials will be uploaded to the same Bilibili account. Please stay tuned.)

Overview: This is a 135 film wide-format (24×65mm) camera primarily assembled using 3D-printed components. It offers precise film positioning, automated frame counting, and focusing capabilities. It can also be adapted for use with a 4×5 large-format camera back through a 3D-printed adapter.

Excluding metal fasteners, the dark slide, and the frosted acrylic focusing screen, all parts are 3D-printed. The structure is robust yet uncomplicated, suitable for standard FDM 3D printing using PLA, PETG, or similar materials. If you lack a printer, you may commission 3D printing services (note: the process must be Fused Deposition Modeling, using a matte black, non-reflective material; resin printing is unsuitable!), Detailed component printing orientations and slicing settings are provided within the included documentation. If unfamiliar with 3D printing, avoid altering the print settings; if using a commercial service, clearly communicate these requirements!

Manual film advance is employed, incorporating a mechanical counter. A standard 36-exposure 35mm film roll yields approximately 20-22 wide-format (24×65mm) images.

Printer accuracy may vary. If excessive gear play prevents engagement, consider individually printing the gears with increased extrusion (effectively scaling the parts slightly larger)!

Focusing is achieved using a focusing tube and a frosted focusing screen. The removable back allows for focusing screen changes or the application of distance scales for zone focusing. A dark slide is incorporated into the back design; light leaks are meticulously prevented!

Currently Compatible Lenses (wide-angle lenses are recommended for wide-format use; must be medium/large-format lenses with leaf shutters; lenses from bellows cameras are also compatible):
1、Schneider 47mm lenses: super angulon 47mm F8 (I used one from a Paxette 69 snapshot camera), super angulon 47mm F5.6,

2、Schneider 47XL dedicated body.
3、75mm/105mm lenses from medium-format bellows or twin-lens reflex cameras (focusing method: 3D-printed focusing tube + the lens's own focusing tube, if present),
4、Using a universal body + corresponding flange distance adapters, almost any medium/large-format lens with a No. 0 or 00 shutter can be adapted.
5、Utilizing a custom Mamiya Press lens mount body + a CNC aluminum adapter allows for compatibility with all Mamiya Press lenses. (The lens mount itself cannot be 3D-printed due to high material strength requirements; CNC aluminum adapter kits can be purchased directly from “藕可米”.
【Xianyu】https://m.tb.cn/h.TH97YBd?tk=9uMOe8AzWnX HU293 「藕可米’s Xianyu shop, follow them!」

Future versions will support additional lenses; updates will be provided continuously. Each update will include a changelog; file links will remain consistent.

Printing Instructions (detailed instructions are included in the attached files):
1、To prevent light leaks due to aging and cracking, the main body of the film back should be printed with a high infill density (60% or greater)!
2、The main components must be printed using solid black plastic with low reflectivity; avoid overly coarse matte textures. Caige's black PLA filament is recommended.
3、The .dwg design files (for a stainless steel dark slide and a frosted acrylic plate (must be single-sided frosted)) are located in a separate folder. Submit these files to Taobao custom shops for fabrication; the acrylic plate is a simple 70×33mm rectangle.

【Taobao】https://e.tb.cn/h.TN4zhwMUN1ajG0r?tk=Je0ne4gyDGy CZ005 「65mn spring steel strip, quenched spring sheet, high-elasticity steel strip, scraper, gasket, processing, cutting, custom-made」
Click the link to open or search directly on Taobao

【Taobao】https://e.tb.cn/h.TmpNdXqH39qkRY5?tk=VIfye4gCgr8 CZ005 「Custom frosted transparent acrylic sheet, high-transparency ceiling light box cover, balcony protection, sanitary door and window, round and square plastic」
Click the link to open or search directly on Taobao

Join the WeChat group “3D-Printed Camera Makers” for discussions; add me on WeChat to join!

ENGLISH VERSION
**Author:** 黑白影趣 (Same name on Bilibili, Xianyu, and RedNote)

**Project Name:** Falcon P-35 Version 1
*Updates will follow. Stay tuned!*

**Special Note:** The author is currently a high school student.
This series of 3D-printed film cameras is my original creation. The purpose of open-sourcing is to better demonstrate the practical significance and value of technological innovation.

All film photography enthusiasts are welcome to freely print and assemble their own wide-format film cameras. The process is very simple, and video tutorials will be released on Bilibili. Suggestions for improvements and shared results are also highly appreciated.

**Contact Information for the Open-Source Author:**
- WeChat: zsq15983556719
- QQ: 2897769642
- Email: shengqiangzhang84@gmail.com
*You can contact me to join the WeChat discussion group.*

This is a non-profit project, but DIY enthusiasts with 3D printers are allowed to assemble and sell the cameras.
*When selling or sharing, please credit the original designer:* **“黑白影趣”**

**Bilibili Videos on Features and Structure:**
- [Final Preview of the Open-Source 3D-Printed 135 Wide-Format Film Camera – “Falcon P-35” Project](https://b23.tv/uQwttoB)
- [final Open-Source Introduction: 3D-Printed 135 Wide-Format Film Camera – Falcon P-35 Project](https://b23.tv/QAEOxW2)
*(Follow the same Bilibili account for printing instructions and assembly tutorials. Stay tuned!)*

**Introduction:**
This is a primarily 3D-printed camera designed for shooting 135 film in a wide format (24×65mm). It features film positioning, automatically frame counting, and focusing capabilities. It can also be adapted to be used on a 4×5 large-format camera back with a 3D-printed mounting plate(also included in the model files) .

Except for metal fasteners, the dark slide, and the frosted acrylic ground glass, all parts are 3D-printed. The structure is sturdy and simple, suitable for standard FDM 3D printing. Materials like PLA or PETG work well. If you don’t own a 3D printer, you can send the model files to a printing service (*ensure they use fused deposition modeling (FDM) with matte black, non-reflective material—no resin printing!*). For printing orientation and slicer settings, refer to the instructions in the folder. *Not all files need to be printed!* 
Considering the particularity of the detailed printing tutorial, I did not make an English translation version of it. Please use translation software and combine images to understand.

*If you’re unfamiliar with 3D printing, avoid altering the settings. 
*If using a printing service, emphasize these requirements and DONOT change them.

**Features:**
- Manual film advance with mechanical frame counting.
- A standard 36-exposure 35mm film roll yields 20~22 wide-format (24×65mm) shots.
- Focusing is achieved via a focusing tube and a frosted focusing screen. The removable back allows for focusing screen swaps or marked distance scales for zone focusing.
- The back includes a dark slide , and the design ensures no light leaks.

**Compatible Lenses (wide-angle lenses are recommended for wide-format; must be medium/large-format lenses with leaf shutters; lenses from bellows cameras also work):**
1. Schneider’s classic 47mm wide-angle lenses:
  - Super Angulon 47mm F8 (I used one from a Paxette 69 snapshot camera).
  - Super Angulon 47mm F5.6.
2.Schneider super angulon 47 XL: please choose the specialized main body for printing.
3. 75mm/105mm lenses from medium-format bellows cameras or TLRs (*focusing method: 3D-printed focusing tube + the vary inside-focusing tube*).
4. Universal body + corresponding flange distance adapters can fit almost all medium/large-format lenses with No. 0 or 00 shutters(flange between 65~160mm)
5. Custom Mamiya Press camera mount body + CNC aluminum mount adapters can fit all Mamiya Press lenses (*3D-printed mounts are unsuitable due to material strength requirements; purchase CNC aluminum adapters from “藕可米”*):
  - [Xianyu Link](https://m.tb.cn/h.TH97YBd?tk=9uMOe8AzWnX)
  *Future versions will support more lenses. Stay tuned! Updates will include changelogs, with the same file links.*

**Printing Instructions:**
1. To prevent light leaks from aging or cracking, print the film back body with high infill density (60% or higher).
2. Main parts must be printed in solid black, low-reflectivity plastic. Avoid overly rough textures. Black PLA or PETG are recommended.
3. For the .dwg design files (a stainless steel dark slide and a frosted acrylic plate as ground glass*must be single-side frosted*), submit them to Taobao custom shops for laser cutting. The acrylic plate is a simple 70×33mm rectangle.  (For overseas enthusiasts, you can have the required parts custom-made by local workshops.)

  - Frosted acrylic thickness: 2mm.
  - Dark slide thickness: 0.2mm.

  Recommended Taobao shops:
(https://e.tb.cn/h.TN4zhwMUN1ajG0r?tk=Je0ne4gyDGy)
(https://e.tb.cn/h.TmpNdXqH39qkRY5?tk=VIfye4gCgr8)

4. Sticker printing settings:(Print on 4*6 inch adhesive-backed  paper;does not support border printing(no cropping or scaling allowed).

**Join the WeChat group “3D-Printed Camera Builders” for discussions! Add me on WeChat to join.**

--- Assisted by DeepSeek for translation.