Fantasy Medieval Battlehammer

I designed this some time ago and wanted to share with the community. I hope you enjoy printing it. 
 

This is a simple build but requires careful measurement to fit all the pieces on the core that will hold everything together. 

The length is approximately 84cm and there is a square 10x10mm square cavity along the entire handle and head. The Head Lock and End Handle pieces have holes for the pins. 

I used a square steel bar that I cut to length and drilled holes at the start and end. I fitted the Head Lock and attached the pin to hold it in place. Then I fitted the Middle Head and Handle pieces and applied super glue between the connected pieces to make sure everything will stay in place. Lastly the End Handle piece can fit along with its pin to hold it firm in place. Pins will secure all pieces to the steel bar so that pieces don't fly away in case you swing the Battlehammer. 

IMPORTANT: 
1) Before cutting the steel bar make sure you have the correct length measurement. If you cut it short then you won't be able to drill holes for the pins to fit. I did a dry fit with all pieces to measure the length. Then removed all the pieces, cut the steel bar. I did another dryfit to mark the holes for the pins. I drilled the holes and moved to final assmebly with glue. 

2) After drilling the pin holes try them out. The pins must be able to go through without moving around to much when in place.

3) I suggest not attempting to cut/drill the steel bar with the plastic pieces on it. Steel is tough to drill through and heat will spread along the bar melting the plastic. If you decide to follow this approach then ensure you don't allow the steel bar to overheat.