Re: Need help to dismantle/open WTO live tools
hy saij when opening dual axis live holders, you should begin with the longer shaft ( thus the one that holds the collet )
unscrew the part with 2 blind holes, from image 1840 : requires a special key ( like the ones used to close/open live centers ), but, if it's not in the house, then simply use a sharp pin to force it to rotate ( 'ding' for more infos ); this may damage it's surface, but, in the end, before putting it back again, you may use a file or sand paper, etc, to make it smooth again
unscrew the patterned part, from image 1842 : requires a more special key ( seems to be WTO specific ), but, again, if it's not in the house, then use a sharp pin
please be aware that those 2 parts may have fine threads, and might have been mounted using loctite ( or something ), thus it may be tricky/hard to open them, even with the right keys, simply because, after such looong time, they require much more torque to be unscrewed, compared to the one used to initialy mount them; this extra required torque may damage/bent/brake whatever keys you have, and even a sharp pin may not be enough; consider, as last option, to drill bigger holes, and use a bigger key on them ( 'ding' for more infos ); if they get too damaged during this process, you can always craft others, and, if the threads inside the live holder gets damage, you can correct them, by interpolation/helix on a mill ... so, nothing extra here
after you remove those 2, just inspect it's internal construction, and proceed futher ...
all turned out to be useless
please, what's the problem with them ? i suppose they don't rotate, or, if they do, then motion is not continuous
if they seem to be blocked, then, before begining to dismantle, check for a part that slides, right near the end that goes into the M spindle; some live holders have such a sliding part, that simply blocks the holder when it is not installed in the machine; when installed, this part get's pushed, and the holder unlocks; check by hand for any sliding part, but, it seems that yours are not that type, but, just check
okey, if they still seem to be blocked/stucked, then :
... if it is the gears, then :
...... after you dismantle them, when putting them back, try to use thin metal foils ( 0.01, 0.02, etc ) behind the gears, to increase the gearing mechanism play
...... or consider crafting in house gears; no need to go the extra mile with curved teeth, just use straigth; even if you consider buying a new set of gears, beside the price and the fact that they may not be available as spares, you may crash them if you don't know how to mount them; and, if you know how to mount them, then there is a big chance to know also how to craft them, so just make a pair
... if it's the bearings, then it should be an easy fix, at least simpler then dealing with the gears
is it better to have a blocked live holder, or a working one that is totally dismantled ? kindly
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