Mark, your idea for a remedy for the hole not in center of bracket is spot on. I don't know how you were planing on moving the hole to the center of the bracket end but do that first to determine the OD of the bushing you need then follow the same procedure you used to produce the bushings that were to small to make correct ones. Another thought I have is to fill the hole with J B Weld it would produce a secure and tough enough repair to move the hole to the middle of the bracket end. Remember all the model has to do is run not hog down stainless steel.
Why don’t you set up the casting in a fixture and bore the holes over size with a small end mill so it won’t wander into the existing holes and then plug them with some pins, loctited with 638. Then you can out the right sized holes in where you want them. That will save the part from the scrap bin.
hole inside isnt concentric to the outside diameter cuz you didnt use the tailstock to support the the end after you drilled the hole, center to center is always a perfect concentric fit...
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Hello mark
Thank you for the video,it is intresting to see that tings go wrong,as well Regards from Lennart in sweden
Mark, your idea for a remedy for the hole not in center of bracket is spot on. I don't know how you were planing on moving the hole to the center of the bracket end but do that first to determine the OD of the bushing you need then follow the same procedure you used to produce the bushings that were to small to make correct ones. Another thought I have is to fill the hole with J B Weld it would produce a secure and tough enough repair to move the hole to the middle of the bracket end. Remember all the model has to do is run not hog down stainless steel.
Thanks for the comment! Looking at the project on a "hole", you are totally correct, I think I'm going to go with a JB weld method as you suggest!
remember that wobble, well if you pull it out after you drill a hole and its end is wobbly so would be the hole in the center
Mark, can you plug it with rod and re-drill?
As the part is so small have a go at producing a new one from raw stock. Get that file out. 😜
Why don’t you set up the casting in a fixture and bore the holes over size with a small end mill so it won’t wander into the existing holes and then plug them with some pins, loctited with 638. Then you can out the right sized holes in where you want them. That will save the part from the scrap bin.
hole inside isnt concentric to the outside diameter cuz you didnt use the tailstock to support the the end after you drilled the hole, center to center is always a perfect concentric fit...
what if you compressed a rod into then re-drill