Oxygen xpan

The original Oxygen xpan design, based on nylon sintering, is not ideally suited for FDM printing. Therefore, I have modified the body, film advancement, and rewinding mechanisms for compatibility with standard FDM printers. This includes incorporating stainless steel pins to enhance the strength of the film advancement and rewinding components.

Additionally, I have designed a 3D-printable M65 adapter ring for mounting an M65 focusing barrel on the Oxygen xpan, thus reducing assembly costs (a layer height of 0.12 is recommended for the adapter ring).

Focusing screen: A 75mm x 35mm single-sided frosted acrylic sheet, 2mm thickness recommended. The cutting diagram is included in the accompanying images; download it and have it cut by a shop on Taobao.

Adhesive: 502 glue

Hardware components:

Spring specifications: 0.5*10*10, 0.5*4*5, and 0.3*6*5

【Taobao】Fourfold compensation for counterfeits https://e.tb.cn/h.TtZm5GuEmvqBjQE?tk=CC49ejUxz8N HU108 「304 stainless steel springs, precision compression springs, high-strength return springs, wire diameter 0.2-1.5mm, custom-made」
Click the link to open directly or search on Taobao to open.

Bearing specifications: HK1012 【10*14*12】One is sufficient.

【Taobao】Fourfold compensation for counterfeits https://e.tb.cn/h.TtZpIHcc58QgZjV?tk=dR3cejUAE5f CZ009 「HK bidirectional miniature needle roller bearings, inner diameter 3 4 5 6 7 8 9 10 12 13 14 15 16-20」
Click the link to open directly or search on Taobao to open.

Stainless steel pin specifications: Φ1.5*20 and Φ2.7*14

【Taobao】Fourfold compensation for counterfeits https://e.tb.cn/h.THksmyshfas9lDt?tk=3Dgkej5bbxX HU287 「Positioning pins, cylindrical pins, stainless steel solid pins, round head pins, shafts, round rods 0.6M3M4M5M68」
Click the link to open directly or search on Taobao to open.

Stainless steel positioning balls: M3*5

【Taobao】Fourfold compensation for counterfeits https://e.tb.cn/h.TtZtJQd6h855Q8r?tk=z5ZIej5c8rz CA381 「304 stainless steel positioning balls, micro-screws, steel balls, spring balls, head plungers, 12.9 grade positioning screws」
Click the link to open directly or search on Taobao to open.

Hot-pressed copper nut specifications: M3*5*4.2, M2*4*3.2, and 1/4*6*8

【Taobao】Fourfold compensation for counterfeits https://e.tb.cn/h.THstMd1LhZfVlIb?tk=CK89ej54le8 HU591 「Injection molded hot melt copper nuts, M2M3 through-hole knurled nuts, earth-eight-character embedded copper inserts, copper flower nuts M4M5M6M8」
Click the link to open directly or search on Taobao to open.

【Taobao】Fourfold compensation for counterfeits https://e.tb.cn/h.TtZAgx0vSf66lD9?tk=ThWjej5Tgvi CZ193 「British imperial copper knurled nuts, straight thread 1/4 injection molded copper nuts, copper embedded parts, embedded parts, through-hole blind hole customization」
Click the link to open directly or search on Taobao to open.

Countersunk screw specifications: M2*8, M2*20, and M3*8

【Taobao】Fourfold compensation for counterfeits https://e.tb.cn/h.THPY02QKB9mW2ld?tk=xzhSej577Ti CZ009 「12.9 grade high-strength countersunk set screws, flat head hex screws, bolts, M2M3M4M5M6M8-M12」
Click the link to open directly or search on Taobao to open.