mold

Greetings, First, I'd like to say thank you to the members of this forum. I began machining just under 10 months ago, and the advice people have given me here has really propelled me forward as I try to climb each mountain. I am trying to successfully inject a mold I made for a card, but I...

Greetings Machinists, I am trying to get a circular groove cut for a small mold I'm making (like for a lego brick). I use circular interpolation, but it comes out as an oval (out about .005”). How would I achieve an accurate circular groove? Here is a picture of the CAD model: Details: .8...

Greetings, I've been trying to solve an issue with drilling alignment pin holes on my small aluminum molds. I have tried g-code (circular interpolation) on my mill, and it made ovals (out by about .002-.0015"). Then I decided to try using HSS drill bits. Dowel Pin Diameter: 5mm (.1969")...