<h1>Mechanical and Machine Design</h1> <h4>Wednesday 09 May, 2018</h4> # Fraesivel Part II ###My individual contribution this week: In the second week I finalised the G-code post-processing and attempted to export 4-axis code from Fusion 360. As mentioned in the <a href="http://archive.fabacademy.org/2018/labs/falabvestmannaeyjar/mechanical_design/index.html">group page</a> we reached the stage where we could air-cut in 3-axis, and manually jog the 4th axis. However we weren't able to export any meaningful 4-axis G-code for testing at this point using Fusion360. <div style="width:100%; float:right"> <img src="media/week15/group-shot.jpg" style="width:100%; float:left; padding:5px 5px 5px 5px;"/> <img src="media/week15/mantis-fraesivel-4-axis.jpg" style="width:100%; float:left; padding:5px 5px 5px 5px;"/> </div> ###Which opportunities for improvement: Of course, there is only so much you can do with 3D printed materials and also we were limited by not making any permanent modifications to the Mantis. Now that we've tested the system I would recommend to re-do the existing bed with a B-axis bracket built in. I would also consider machining the chuck out of a different material as it did not have much clamping force nor could it keep the part particularly straight under load. Working with the Mantis means there's a limited volume to work with, it may be a better idea in future to implement this upgrade on a larger machine. <br>