Dowelling Jig w/ Adjustable Fence

Version 2 (with Imperial scale): https://makerworld.com/en/models/1692690-adjustable-dowelling-jig-imperial-metric#profileId-1794383 

Based a little bit on the Jessem Dowel Jig, this is a fully functional printable dowelling jig. I spent over 50 hours designing and prototyping this so I appreciate any support, even just a comment. 
 

Features:

Metric measurements

All marking lines and holes are on 20mm centers.

Steel drill guides

Adjustable fence.

Full detailed guide here: 

https://alexbridger.com/3d-printed-dowel-jig/

Hardware List

• Steel drill guides
• 8 x M4x10 threaded inserts
• 6 x M4x12 allen cap screws
• 2 x M4 knobs

Tools Needed

• 2.5mm allen key
• 4mm allen key
• Pliers for turning in the drill guides
• 6 x M4x12 allen cap screws
• 2 x M4 knobs
• Vernier caliper (optional)

Printing

Dowel Jig Head
Infill: 80%
Colour: Grey (better visibility of markings)
Print using variable layer height, all layers at 0.2mm, the top 3 or 4 layers are better if printed at 0.08mm or similar. This makes the measuring lines and text far more visible.

Fence Vertical
Infill: 100%

Fence Interface
Infill: 80%*

Fence Support
Infill: 80%*

Fence Indicator
Infill: 100%