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Another homemade milling machine
vtsteam:
Put de lime in it. :lol:
shipto:
I'm not listening 😂
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shipto:
I have all the supports in place but while using the machine I found it impossible to find the right place for the lifting screw (well jack at the moment) too far forward and it lifts the front and locks up on the column on the way up too far back and it locks up on the way down there is a sweet spot but obviously this changes when you move the Y axis.
So during a repetative drilling job at work I started to think about it and looked at the column on the drill which has a big lump of cast iron hanging from a round column much like the mill and the lifting mechanism is part of the casting so I am going to see if putting the screw back in the place that Drummond intended it to be will solve the problem.
I need to slightly redesign the bottom a little as the hole that the screw will need to go through is being used to secure the column. With this in mind I dug out a bearing housing which will make a support for the bottom of the column.
vtsteam:
Longer bearing on the column would prevent locking. But that would reduce the lift range.
shipto:
Yes if moving screw to inside doesn't help I can machine the Drummond tail stock to bolt it onto the knee which will add just short of 2 inches and if I put it at the top it won't effect travel.
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