The plastic disk/cutting string holder on my lawn edge trimmer has worn through. Seeing that the machine was bought way back in 1995, I doubt whether I would be able to buy a new part off the shelve, so I'm planning to make a new one out of aluminum.
I would like some input on how I should go about to machine or mill out the slotted pattern, as shown in the picture?
I have a rotary table, so the circular part is not a problem, neither dividing the circle into 9 to get the correct amount of teeth (for the lack of a better word), using the index on the rotary table. The sides of the small teeth are perpendicular, so this indicates that I'll have to center the work piece and then move the table sideways, half the width of one tooth? Cut towards the next by rotating the piece, move the table the correct distance to the opposite side, and so on.
Am I correct when I say that if I use the correct size end mill, I should be able to cut both the inner and outer edge teeth simultaneously?
I would appreciate any input and advice, please.
I would like some input on how I should go about to machine or mill out the slotted pattern, as shown in the picture?
I have a rotary table, so the circular part is not a problem, neither dividing the circle into 9 to get the correct amount of teeth (for the lack of a better word), using the index on the rotary table. The sides of the small teeth are perpendicular, so this indicates that I'll have to center the work piece and then move the table sideways, half the width of one tooth? Cut towards the next by rotating the piece, move the table the correct distance to the opposite side, and so on.
Am I correct when I say that if I use the correct size end mill, I should be able to cut both the inner and outer edge teeth simultaneously?
I would appreciate any input and advice, please.