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Spotting drill spindle for QCTP?

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andyf:
Hi Pekka,

It's a bit late to mention this, but if you only want a spindle for light drilling, have you thought of improving a commercial flexible drive and adding a mounting so it will fit in the toolpost?

Here is an example:
http://mikesworkshop.weebly.com/toolpost-drill.html

Andy

PekkaNF:

--- Quote from: andyf on May 09, 2011, 08:25:58 AM ---Hi Pekka,

It's a bit late to mention this, but if you only want a spindle for light drilling, have you thought of improving a commercial flexible drive and adding a mounting so it will fit in the toolpost?

Here is an example:
http://mikesworkshop.weebly.com/toolpost-drill.html

Andy

--- End quote ---

Saw it and other similar. Clear benefit is to get the motor out of the toolpost. Drawback is the "flexible drive". I'd like to have something more substantial. Let's see if this ever flies.

PekkaNF

PekkaNF:
Bliznak! Tempering steel spindles had gone bananas. Lucily I had them much oversize, but I definately have to turn them between centres. I'm sidetracked in making fixed steady. If it does not fly, I'll probably have to buy one. For my lathe CQ9325, this guy has similar 130 mm centre height.
http://users.picknowl.com.au/~gloaming_agnet/cq9325rev.html

I gues I finaly need one!

Pekka

PekkaNF:
OK. Steady rest down, now I only have to learn turn between centres. Searching this site as I go. Then I have to figure out how much speed and power I need. It's dawning to me that ideal would be AC servo close to 240 VAC that I could drive with VFD...I even don't need any feedback. Have to bug my frieds if anybody would have a 100-200w or so servo. Maybe I shoud experiment before comintments.

Pekka

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