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DIY top slide design, max height 40 mm?
BillTodd:
--- Quote ---Could it be circumvented with this flip threading tool?
--- End quote ---
Only for external threads ;) (the retract is handy for internal threads and boring op's too)
The older HLV had a simpler co-axial threaded mechanism to retract the slide (works like a second lead screw).
PekkaNF:
--- Quote from: BillTodd on November 09, 2012, 08:15:18 AM ---The older HLV had a simpler co-axial threaded mechanism to retract the slide (works like a second lead screw).
--- End quote ---
That sounds simpler - in priciple. Probably needs pretty good and axially true thread. Do I need to practice some more threading before I jump head first on this one? I tied once to do a "finetune" sort of differential thread, but completely bombed it....needed whole more true form or more play that I was willing to put into it.
Now - only few more little details :lol:
Pekka
Jonny:
Firstly i would track down where the flex is coming from.
It will be in the poor gib strip or flexing at the rotation clamping.
Far better to use the outer cross slide bolting holes spreading the load.
Even better make it fixed as in rigid you can always put the original back on for those once in a blue moon top slide angle jobs.
PekkaNF:
--- Quote from: Jonny on November 09, 2012, 09:39:02 AM ---Firstly i would track down where the flex is coming from.
It will be in the poor gib strip or flexing at the rotation clamping.
Far better to use the outer cross slide bolting holes spreading the load.
Even better make it fixed as in rigid you can always put the original back on for those once in a blue moon top slide angle jobs.
--- End quote ---
I have the original lying on the self and replaced with a solid bloc, bolted down on the cross slide from all four corners.
The original has these probelms:
* Short travel - something like 35 mm useful - fine for threading pretty useles for anything else.
* Bolted down with two bolts only and these are pretty bad
* Rotation mechansim is weak and footing is narrow
* screw is M12 60 decree form....
* Etc.
IMHO original can't be improved enough - only replaced.
Went on a "bolt shop" and asked if they can source me some 12/14/16 mm left hand trapetzoidal nuts and rods. They sais they'll try but they are not happy...
Been browsing all over and paging trough MEW and now I'm in elimination process for all "unnecessary" to leave only strict necessities left.
Pekka
andyf:
--- Quote from: BillTodd on November 09, 2012, 08:15:18 AM ---
--- Quote ---Could it be circumvented with this flip threading tool?
--- End quote ---
Only for external threads ;) (the retract is handy for internal threads and boring op's too)
The older HLV had a simpler co-axial threaded mechanism to retract the slide (works like a second lead screw).
--- End quote ---
You can have flip up screwcutting on internal threads:
http://mikesworkshop.weebly.com/internal-swing-toolholder-for-threading.html
Andy
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