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Thread: todays tools gloat
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29th Oct 2020, 08:14 PM #2431Most Valued Member
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Scraping? I'd be happy if the guy that made it got around to cutting the bolts a little shorter so I didn't have to use the Vee side of the magbase to clear them
I did get some Stainless steel bar to make my layflat hose winder pretty. I hope 316 wasn't a mistake.
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29th Oct 2020, 10:23 PM #2432Diamond Member
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29th Oct 2020, 10:51 PM #2433
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9th Nov 2020, 10:44 PM #2434Senior Member
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B series Multifix tooling
Hi Gang,
I am constantly on the hunt for B series Multifix tooling. Friday I came across a tool post and 4 holders that I secured for $240. Very happy, not original Suisse and not sure of the brand as the identification sticker has gone. Not a big problem as even the clones are rock solid, you couldn't put a dent in one with an Elephant gun.
So now I have 9 holders, 2 are for boring bars i.e. Have a V in the bottom where the tool goes, 1 large V and 1 small V so all good there. Leaves me with 7 to load with the most used tooling.
I do need to stop doubling or say x4 on tool posts as I now have 2 original Suisse tool posts and 2 generic. Will have to move some on as I only have 1 lathe.
Cheers Bruce
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10th Nov 2020, 07:39 AM #2435Diamond Member
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Nooo!
1. Get another lathe, put it back-to-back with the current one,
and build a large tool holder hanger/rotisserie between them?
2. Modify your slide to accept a post for a rear toolholder?
3. Build a dual-toolholder swing lever, with tools feeding in from opposite sides, for faster roughing or parting off?
4. Build a new tailstock, with a capstan to rotate between tools?
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10th Nov 2020, 08:42 AM #2436Member
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I'm sure that warning is entirely justified.
I have a CNC'd BF20LV running LinuxCNC and I only manufacture one-off components for my home/hobby workshop.
For one-off's I run most movements by MDI command or for quick/short paths by turning the encoder hand wheel. The real benefit of CNC on a small home mill is the ability to cut holes, mill angles, radius and all sorts of other tasks which require coordinated and precise movement of multiple axis.
A CNC conversion of a home mill does not turn it into a CNC machining centre, far from it. I'm thinking of my CNC mill as a Semi-Automatic machine which preforms complex parts of my machining tasks automatically but still requires a lot of hands-of tasks to produce a part.
It is particularly handy for people using programs such Fusion360 which caters well for exporting a CNC program directly from your design to mill a [more or less] complex feature which would otherwise be difficult or impossible to manufacture on a manually controlled mill.
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10th Nov 2020, 09:35 AM #2437Senior Member
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yes, but
I agree that trying to use a CNC for a strictly one-off job is a debatable proposition, but there are plenty of exceptions.
On a manual lathe I can machine happily to 0.1 mm, in one direction. The leadscrews and dovetails are a bit limiting. On my CNC, with linear bearings and ball screws, I happily machine to 0.01 mm: 10x the accuracy and resolution. In fact, the resolution on my CNC is 0.8 microns.
If what I am making is a complex part needing high precision and of real value, then using the CNC may well be justified (see above). Sure, I might run off a plastic prototype or two (or 3), but if the job has high value, so be it. And of course, if something goes wrong with the part later on, I have the means now of replacing it exactly.
Yes, I could use the MDI screen, but the potential for typos that way is ... high. A written program can be reviewed and cycles of air-cutting can be checked.
Cheers
Roger
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10th Nov 2020, 11:08 PM #2438
Thanks for the replies.
Yeah I'd like it rather than getting out a rotary table or using the DRO functions etc,
One day I'll get around to it, then I'll either be why didn't I do this sooner, or jobs will be a pain, lol
The screws and double n are well kept wrapped in plastic, well oiled and in a sealed pvc tube with end caps.
I understand it can still be used manually, but still like winding handles for a quick jobUsing Tapatalk
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23rd Feb 2021, 12:32 PM #2439Diamond Member
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Surface grinder
From my factory neighbour's yard, an old thing that used to make things flat:
IMG_1275.jpg IMG_1276.jpg IMG_1277.jpg IMG_1278.jpg
Sadly, the middle of the long travel is worn/inaccurate, and I don't have the appetite for regrinding the table underside of a surface grinder, so off the scrap it went.
...
IMG_1282.jpg
but I did keep the motor. Nice compact 3Ø, 2.2HP from a quality Italian manufacturer?
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23rd Feb 2021, 05:02 PM #2440Most Valued Member
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What a pity. It’s a tool and cutter grinder - for most jobs a bit of wear in the middle wouldn’t have been an issue.
Steve.
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23rd Feb 2021, 05:06 PM #2441Diamond Member
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11th Mar 2021, 05:59 PM #2442Most Valued Member
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Yesterday I got four Sutton Thread Repair Kits in M6, M8, M12, and MF14 for a grand total of $60. Also got a Impact Driver Set, a Smart Bit for drilling and countersinking and a P & N 5/32 - 1" Step Drill. Total for everything was $140. All brand new.
Nev.
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12th Mar 2021, 10:13 AM #2443Most Valued Member
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12th Mar 2021, 07:04 PM #2444Most Valued Member
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12th Mar 2021, 08:52 PM #2445Most Valued Member
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The evidence -
Nev.