Parting Blade Holder QCTP for the Lathe
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- Опубликовано: 8 сен 2024
- I build this Parting Blade Holder for a 26mm SPB26-2 Parting Blade. My Quick Change System only allows for 12mm tooling, so i had to come up with a different approach to mount the 26mm tall partingblade underneath the center line.
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Nice video! The new tool holder looks great. When you do the relief cuts to allow for tool clamping pressure, what stops the tool from being pulled out of vertical as the screws tighten?
Hi Andreas, thanks for the comment!
Do you mean the distrotion of the toolholder itself? I really didn't consider this at all... 🤔
But you're right, as i tighten the screws, the top part slightly pivots outward. So in theory the blade is now not dead on vertical/square.
I just checked it with a square(couldntl' fit a 0.05mm feeler gauge), the distortion is quite small, since the fit of the blade was tight from the beginning, and didn't need much movement to clamp it.
Thank you for pointing that out.
@@ChristophLehner ok, that's interesting to note. I assumed you had seen a similar tool clamping design available commercially, so wasn't sure it was distorting at all, or if it was it had negligible effect on the tool. Thanks for the reply
Nice project and video! I chucked when the slitting saw jammed on the bristles. I wouldn't have seen that coming. I haven't worked with slitting saws so can't give much feedback there. I have been doing a fair bit of cold bluing recently and picked up on a few things. If you can get the kind that comes in concentrate form you can submerse your whole part and get a more consistent finish. You can even dilute the premixed like you have with distilled water to get a larger volume. Just takes the reaction a little longer. I clean the my parts with acetone and blow off with compressed air. Another thing that helps is to do one application, wipe off the whole part, then do another application. Hope this helps! Before too long, I'll be making some tool holders myself! Thanks for sharing
Hi Brandon, nice to see you around here and thanks for the tipps on cold blueing!
I guess submerging the whole part & thoroughly cleaning, is the key to an even coating.
@@ChristophLehner Happy to help. Best of luck!
@@ChristophLehner on the topic of cold bluing: I recently tried this myself and found this video where the process is relatively well described (The video is from a German company) ruclips.net/video/oHlsh-W_3vg/видео.html
Also thanks for your great videos! They help a lot since I'm also waiting on my Optimum Mill :-)
nice project
love your tools holders shelve at the end.
Great video Christoph!
Im actually in the process of setting up a metal workshop and your videos have given me a great deal of inspiration.
The production quality of these videos are really good, keep it up!
Thank you very much for the kind words Adam.
You did very well, these parting off blades are useful.
I made a similar tool holder but split the block horizontally mid way up from the front to most of the way to the back with a band saw, much quicker
And then just installed a m8 screw vertically to clamp the blade at the front (insert end)
Not having a small dovetail cutter I found that once the 3mm Slot for the blade was machined I could tip the block sideways in the vice to the required angle and run along the edge of the shallow slot with a 4mm end mill both sides to make a dovetail. The end mill needs to go a bit deeper than the bottom of the shallow slot. With a 3x100 blade 100mm bar can be parted off.
I run my tool upside down and the lath in reverse to avoid chatter/grabbing
Thanks for the comment! Your design sounds a lot simpler/easier to make... I orientated on the holders comercially available. The bandsaw would probably have been a lot faster way to cut the slot.
Until now, i didn't expierence any chatter/grabbing while parting. Is there anything to consider when running the tool upside down & the lathe in reverse?