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| Building a milling machine |
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| NormanV:
I don't care about it looking better, it's certainly a lot safer. It doesn't need a guard now. |
| Arbalist:
Nice job Norman, it's all coming together now! :thumbup: |
| NormanV:
I took two steps forward and four steps back today! First I squared the head (trammed it). I followed John Doubleboost's instructions using a car brake disc. It worked but was more fiddly than I had anticipated. As I was tightening the bolts to hold it all in place I found that it altered the setting so I had to tighten the bolts alternately whilst keeping an eye on the dial gauge, but I got there in the end. Then the big moment, I placed my newly acquired compound table onto the knee, it looked great. Then I saw the problem, a few posts back Steve commented on how far forward the spindle was in relation to the column. I had placed it there intentionally as the (new) compound table that I had intended purchasing needed it to be in that position. I have instead bought a second hand table at a third of the price of a new one but the front to back dimension is much smaller. As a consequence the spindle is too far forward. I have two options, I could fix a piece of thick sheet steel on the knee and just mount the table protruding forwards but centred under the spindle. Alternatively I could remove all of the castings above the spindle, slide back the mounting tube upon which the head and the motor are fitted and then modify the castings to suit. It's going to be a lot of work but I think that the latter is the best way to go, at least my time costs nothing and I saved a lot on the table. Here is a pic of it with the table in place, it really looks like a milling machine now! |
| Meldonmech:
Hi Norman The mill is looking great, you have achieved a lot, I think the decision you have made is the right one. The machine will look better and you will be happier with the result. Good Luck with the mod Cheers David |
| awemawson:
Norman, It's looking good - you've travelled a long way making this epic casting journey :bow: One advantage of making an adaptor plate is that larger work can over hang to the rear of the table. When I had a 'Mill Drill' years ago I did a lot of work on 19" instrument panels, and the lack of space behind the table was always a frustration on the deeper ones. If you are not too short of 'daylight' under the spindle, you could cast a plate to adapt the table to the knee, and if in the long term you want another solution it could just be unbolted. |
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