Bird feeder with trey

Quick introduction

Bird feeder with stack for seeds. The feeder is filled through the back door and in the lower part the seeds gradually fall out as the birds take them. The magazine holds 0.5 kg of grain without any problems. 

Railing mount is designed to fit square tube (55mm x 50mm), but it could easily exchanged for different. 

I am recommending to use PETG and after printing spray it with primer and color to ad more protection to weather and UV.
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List of material

• 2pcs - M8 bolts (countersunk head)
• 2pcs - M8 nuts
• 2pcs - M8 washers
• 4pcs - M5 bolts
• 4pcs - M5 thread inserts (6mm length, 6.1 mm outer diameter)
• 4pcs - M5 washers
• something for hinge exes ( max. 3mm diameter)

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Assembly:

1.  In model (Body, Perch) are prepared holes for inserts. 
    
    
2. Slide front wall into grooves in body. 
         
    
3. Glue the roof to the body. There are stops on the roof that should be flush with the body
4. Glue both parts of the lock together so that it rotates in the door
       
5. Connect the door to the hinges located on the back of the body using the axis
6. Screw the RailBody_mount to body and perch using M5 screws 
         
    
7. Slide the feeder onto the railing and secure it using RailMount_secure and M8 bolts. RailMount_secure can slide up and down to adapt to the thickness of the railing.
    

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Known issues:

• problems with bridging of floor (main body). 
• bolts slips, when tightening rail mounts (M8 bolts).
• printing orientation of roof . In wrong orientation roof can deform (Wrong angle) and it’s hard to attach to body.
• birds can easily throw the seeds out

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Big thanks @AlesTetur_65376 for help with printing

link for CAD project:

online - onshape cad model