The foam test completed, I can move on to cutting the actual part.
With a small production run in mind, I made a jig to hold the stock which is then prepared with six holes, two for alignment with 1/4" dowel pins so the stock can be removed and replaced if necessary, and four threaded holes for the M8 screws that are required in the finished part and will do double-duty holding the stock to the jig.
The part after the program has run. The jig is intended to be semi-ablative - so the tool can cut past the part into the jig and I can skip the step of flipping it over and removing the base that would normally be held directly in the vice. However, there is another small offset error that left 2mm on the bottom of the part that had to be removed.
A little clean up with a file and we are done. :D There are still a few small refinements to be made in the cam programming, but next time I should get it all right! For now, this one is close enough.
With a small production run in mind, I made a jig to hold the stock which is then prepared with six holes, two for alignment with 1/4" dowel pins so the stock can be removed and replaced if necessary, and four threaded holes for the M8 screws that are required in the finished part and will do double-duty holding the stock to the jig.
The part after the program has run. The jig is intended to be semi-ablative - so the tool can cut past the part into the jig and I can skip the step of flipping it over and removing the base that would normally be held directly in the vice. However, there is another small offset error that left 2mm on the bottom of the part that had to be removed.
A little clean up with a file and we are done. :D There are still a few small refinements to be made in the cam programming, but next time I should get it all right! For now, this one is close enough.
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