29th Jun 2019, 10:03 PM #1
Wadkin LQ doing some cast Iron milling
I just got a new small three point steady for my Woodfast lathe from Carbatec. They are made to fit a couple of the Carbatec lathes . I thought Ill get it and do what I have to to try and make it work on my lathe .
Its was a little high and didn't fit the lathe bed so I tried machining it with the Wadkin LQ .
First time Ive tried cast iron with the LQ. Ive done mild steel a few times.
I started with a HSS bit ( first Picture) but found out that wasn't going to work without coolant . The heat built up and the cutters fastest outer spinning sharp points went dull quickly. I couldn't get the square Oak column I was using to hold the steady wet so I switched to a second hand 19mm shaft tungsten cnc cutter with a chipped tooth on one side.
It went well . Tungsten eats this cast iron with ease .
Here's a video of the cutting.
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29th Jun 2019, 10:22 PM #2
29th Jun 2019, 10:34 PM #3
We discussed it in a message once and I was going to write it on the machine but didn't.
When I first got it I worked it out and compared it to milling speeds on a chart I have and it was pretty close to the right speed for cast iron I think . Ill try and look it up .
1st Jul 2019, 12:25 PM #4
Often wondered how close those Carbatec Steady rests were to fitting the Woodfast lathe... Might have to invest in one and get it machined.
2nd Jul 2019, 12:52 AM #5
They are a pretty rough thing as they come . The original machining of its base was out of whack and it rocked on my lathe bed. The three arms have a lot of play as well but locked down with the knobs should work
I just pushed all three arms out and locked them where the three bearings all met and centering that on my tailstock live center gave me something to aim for by scribeing the base and machining to that . Not highly accurate . Its better than it was though.
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