As well as deeper 2D milling I will also be engraving small metal buckles. As Im not going deep if the work piece is not 100% spot on level then Ill get spots that are missed if its down at one end say.
What tips and tricks do you use for getting your work piece 100% level ?
My buckles are around 24x30mm and at the moment im dropping them into a pocket I machined from aluminium plate. Trouble is, just a tiny missed bit of swarf between the table and Jig or pocket and buckle can be enough to throw it off a smidgen.
I could skim over them before engraving but I pre 'grain' the top prior to engraving.
HHHmm, any thoughts ?
Im a little confused at how this works, so whats stopping it from engraving too deep on the high spots? As gradually the spring pressure will engrave deeper? Or am i looking at this totally wrong?
It will engrave deeper at the high spots but not significantly so, not for me anyway :-)
Im not sure of the difference in hight from high to low spots on my plates Im engraving but its hardly anything, probably a nats chuff :-)
Mostly I get them dead flat but this seems to have solved it if they are off a smidg as I had no missed bits on this batch of buckles.
Im not sure how a commercially available one would work any different?
So when you set the z datum do you just set it a bit lower so it touches in the low spot, so are we saying that the spring acts as a damper in the high spots to stop the tip from chipping/breaking?
I was having tips break but with the spring taking up the initial impact it's been so far so good. I'm cutting stainless steel so it's a big ask for the tiny cutter, especially as I'm a noob and still learning. The high and low spots are littraly a nats chuff so with a solid tip and a shallow cut it was missing some.
Ive also used a diamond drag tip in it too and seems to work well too !
Yeh i can see how the drag engraver would work well, i had a variation of about .2mm so i may make one for the next time i have difficulty and see how it goes :) will pinch your idea haha
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