Quasar VML458 Camera Viewfinder Replacement Parts

These are replacement parts intended for a Quasar VLM458 camera. It includes a replacement for the rubber eyelet, the retainer for that eyelet, and the focus knob.

All parts should be printed in a .4mm nozzle, a maximum of .2mm layer height, and using concentric patterns for solid infill, top and bottom surfaces.

Eyelet:

• Intended to be printed in TPU. Softer is better.
• 95A TPU works just fine - use less walls and gyroid infill - aim for flexibility. 2 walls and 20% gyroid infill works for me.
• Installation is simply pressing it onto the retaining ring.
• Do not use supports
• It is not designed to be removed once installed. The retaining ring can break when removing. There isn't really a way around this, unfortunately.

Eyelet retaining ring/inner ring:

• Print in a durable filament - I tested a few filaments, the best results were found with PC, PETG and ABS. Reinforced filaments are questionable because their layer adhesion tends to be weaker.
• Make this a solid piece. Use concentric for all surfaces.
• Use organic tree supports around the top brim of the ring.
• There are 2 variants of this piece. Chamfered and non-chamfered. Use non-chamfered if you have the original rubber eyelet.
• This piece should be installed before the eyelet is installed.

Focus Knob:

• Print this in the same material as the retaining ring. However, I recommend using a reinforced filament here. PETG-CF is a great choice, PC-CF is ideal.
• The prongs on the inside of the focus knob are identically sized to the original, but it's still a tight fit. It was not designed to be removed, so it needs to be forced in place & sometimes can lead to breaking of the prongs. This is where the reinforced filament comes in.