Gallery, Projects and General > The Design Shop

Keeping the head from turning on a cheap mill

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SwarfnStuff:
Since, (to me anyway) it appears that the column moves up/down to set depth of cut, could you cut a key-way in both the column and base then fix a key to the column? This would prevent twisting but still allow vertical travel.
John B

CrazyModder:
The keyway would be perfect, but is sadly out of reach of my capabilities (especially the slot that has to be cut into the base). If I give that work out to some contractor, it would certainly cost more than a new machine.  :coffee:

chipenter:
Just replace with a bolt and use a spanner , or fit a thrust bearing under the head .

Arbalist:
If the rack on the side of the column is fixed both ends it shouldn't move that much. Can you take a picture of the elevating mechanism and rack so we can see exactly whats there?

Arbalist:
It may be worth contacting this guy as he's done a lot of mods on his.

http://www.juergenschwelm.de/

He seems to speak English? so hopefully conversing with him should not be a problem.

Another link:

http://hpeters.home.xs4all.nl/cnc/hbm16cnc.html

I've not seen such a lightweight version of a mill drill like this before with no fine down feed. They seem to be popular in Germany though and folks are making some good stuff on them so your problem must be solvable! Please let us know how you get on.

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