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Type: Posts; User: Jekyll and Hyde
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19th Apr 2024, 10:29 PM
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Looking at Deskar inserts again, thinking about...
Looking at Deskar inserts again, thinking about trying some out. I noticed they had a CCMT with a -PS chipbreaker. Hmmm, that sounds (and looks) familiar....
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19th Apr 2024, 10:06 PM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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It's all one piece, the set true screws go right...
It's all one piece, the set true screws go right through and push on a boss on the backplate (not visible in any photo). You can see the holes in one of the photos. There's a shallow register in...
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19th Apr 2024, 07:49 PM
Thread: Internal slitting saw
by Jekyll and Hyde- Replies
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Internal slitting saw
Every now and then Youtube decides to show me something brilliant like it used to years ago.
https://www.youtube.com/watch?v=_Z7U3IZCcLM -
19th Apr 2024, 10:52 AM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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Correct, if you have a 4 jaw chuck you can use...
Correct, if you have a 4 jaw chuck you can use it. If you're going to buy collets, don't stuff around, buy the set, it's usually much cheaper.
That money investment comes down to the... -
19th Apr 2024, 10:19 AM
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Looks good... Drift which way? Side to...
Looks good...
Drift which way?
Side to side, or front to back? If it's side to side seems unlikely to be the tyres on the wheels, apparently that would be more likely to be a dull blade, or... -
18th Apr 2024, 11:15 PM
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Went on the hunt for Deskars website again,...
Went on the hunt for Deskars website again, trying to figure out their grades and designations, and jackpot.
https://www.lftool.com/en/?page_id=3920
That link should take you to the page... -
18th Apr 2024, 09:40 PM
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I'm really not liking THAT term! No professor...
I'm really not liking THAT term! No professor here, just a spin 'em and see type guy.
The 08 nose radius probably means they'll be a bit unhappy at real low depths of cut, so starting at 1mm... -
18th Apr 2024, 10:23 AM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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The disadvantage of that approach is losing the...
The disadvantage of that approach is losing the through bore capacity that you get with a backplate chuck. Plus the futzing around with a drawbar and having to drift the Morse taper back out of the...
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17th Apr 2024, 04:16 PM
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Might be as clear as mud, but I'll try. The...
Might be as clear as mud, but I'll try.
The back half of the pulley that goes into the gearbox is spring loaded. If you put your thumbs on the hub, and use your fingers on the pulley, you can... -
17th Apr 2024, 10:37 AM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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3 jaw chucks inherently have some runout. Using...
3 jaw chucks inherently have some runout. Using a collet chuck in a 3 jaw defeats half the point of using it in the first place (extra accuracy).
The Joe block is excellent for milling. Although... -
14th Apr 2024, 07:32 PM
Thread: Bandsaw blades
by Jekyll and Hyde- Replies
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https://www.google.com/search?q=cubitron+II+915+au...
https://www.google.com/search?q=cubitron+II+915+australia
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12th Apr 2024, 11:20 AM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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Yes, soak the washer in oil for a little bit...
Yes, soak the washer in oil for a little bit before you fit it. It will be surprisingly hard when you get it out of the mold, convenient for trimming etc. The oil will make it pliable again, and...
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11th Apr 2024, 12:04 PM
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If you want to cut anything other than aluminium,...
If you want to cut anything other than aluminium, you're still going to be running at least 3 times too fast for bimetal at 22hz, and even more so for carbon steel...
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10th Apr 2024, 09:54 PM
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So, now you all know how to fish, what to look...
So, now you all know how to fish, what to look for, what bait to use, what gear you need, etc. So while you're off at the fishing tackle shop buying the gold plated specialty fishing rods you need,...
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10th Apr 2024, 08:30 PM
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Might do this in two posts, to break it up a bit....
Might do this in two posts, to break it up a bit.
Firstly, let me clarify that I never intended to appoint myself the all knowing expert on carbide inserts, although that sort of seems to have... -
10th Apr 2024, 10:31 AM
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1200 rpm isn't going to be a big problem. I've...
1200 rpm isn't going to be a big problem. I've disappeared down the rabbit hole as well, I've managed to finally find some of what I was looking for, think I have some intriguing options and perhaps...
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9th Apr 2024, 11:42 PM
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I'm going to call that good enough. You're...
I'm going to call that good enough. You're technically wrong on the angle in this case, but you are correct on the spindle rotation.
Insert was in a standard boring bar, running on the backside... -
9th Apr 2024, 10:18 PM
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You might be partway there with angle, depending...
You might be partway there with angle, depending on what you mean. But there are two parts to this, and I assure you, there IS another variable you choose every time without even thinking about it.
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9th Apr 2024, 10:11 PM
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Not a bad guess. Both cuts used cutting oil. ...
Not a bad guess. Both cuts used cutting oil.
Feeding in the opposite direction - no, both cuts were made towards the headstock. -
9th Apr 2024, 10:10 PM
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Indeed, I've said the exact same thing in other...
Indeed, I've said the exact same thing in other threads - when all they had figured out what to make was flat topped inserts, the positive/negative designation was very relevant. (Although the...
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9th Apr 2024, 09:33 PM
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Whats the rpm limit on the Hercus? Definitely...
Whats the rpm limit on the Hercus?
Definitely grade of steel is a massive problem with scrapbinium, I decided to stretch the legs on the Graziano the other day, and was taking 10mm off the... -
9th Apr 2024, 07:39 PM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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Just make a cup. Very easy. I just did one a...
Just make a cup. Very easy. I just did one a couple of weeks ago for an ancient crown pallet stacker, cut a bit of leather out of an Irwin tool belt pouch thingy I was given and never used.
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8th Apr 2024, 11:53 PM
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Snapataps comment about positive rake boring bars...
Snapataps comment about positive rake boring bars reminded me I'd wanted to see if Deskar did their -CF chipbreaker in a TPxx16 insert (they don't, it seems). I mis-spoke in the other thread, my big...
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7th Apr 2024, 10:51 PM
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Attempting to break down some of the dogma around carbide inserts...
I've gone on a few rants recently about the pervasive idea constantly repeated in the machining world that negative rake inserts are horsepower hungry monsters that need to be buried up to the...
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7th Apr 2024, 11:07 AM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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I have 16 holders, and I still find myself...
I have 16 holders, and I still find myself changing tools over in the holders every now and then. The more varied the work you do, the more different tools you like having set up and ready - for...
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6th Apr 2024, 11:31 PM
Thread: Old lathe clean up Newbie
by Jekyll and Hyde- Replies
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Not necessarily, as I've ranted about before.... ...
Not necessarily, as I've ranted about before.... I've been roughing with a CCMT or KNUX lately, and finishing with 0.2mm off the diameter cuts (and sometimes less) with a negative rake CNMG at 750...
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5th Apr 2024, 05:59 PM
Thread: [SYD] Engineer's stuff
by Jekyll and Hyde- Replies
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Given the BOC sticker on them, the bottles...
Given the BOC sticker on them, the bottles themselves are worthless, and I think legally speaking shouldn't even be listed in the auction. Wouldn't be surprised if that item gets removed.
Soon as... -
2nd Apr 2024, 10:16 AM
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You need to power it up and see what the...
You need to power it up and see what the parameter P-19 is set to to understand the original intent.
My guess the way you've drawn it would be it's set to 5, 7 or 9, to act as a fwd or reverse... -
1st Apr 2024, 09:53 AM
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Welcome Martin. This thread is rapidly turning...
Welcome Martin.
This thread is rapidly turning into an excellent repository of information and reference images for these machines, and it's fantastic! It's one of the reasons I bother to... -
30th Mar 2024, 09:56 AM
Thread: Vernier callipers
by Jekyll and Hyde- Replies
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Typical, they're on sale now... I bought one...
Typical, they're on sale now...
I bought one shortly after this thread ran, especially after realising my manuals have worn the jaw tips away considerably over the years (no wonder I'd taken to... -
25th Mar 2024, 09:19 PM
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Taking a break from learning German... :D ...
Taking a break from learning German... :D
The tracking and blade tensioning were kind of frustrating. The blade wanted to run off the front of the wheel, and winding the tracking knob in to try... -
19th Mar 2024, 10:44 PM
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I've downloaded it, and am working through it, so...
I've downloaded it, and am working through it, so you can delete the link if you'd like. :2tsup:
My compliments to the gentlemen who scanned it, he's done a far better job than you often see with... -
18th Mar 2024, 10:25 PM
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While I eagerly await Tokoloshe uploading the...
While I eagerly await Tokoloshe uploading the manual somewhere I can get my grubby mitts on it, might as well continue with the catching up...
Although the images on this page of this thread now... -
7th Mar 2024, 07:40 PM
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You don't have to trace the shape in your initial...
You don't have to trace the shape in your initial setup.... Which gives you basically 6 straight lines to work with.
Clamp it to the bed of your horizontal bandsaw however you can (quick and... -
2nd Mar 2024, 09:10 PM
Thread: Mystery Steel ID
by Jekyll and Hyde- Replies
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Noticed this while standing at my bench today: ...
Noticed this while standing at my bench today:
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O1 tool steel from Edcon. Looks a bit darker and slightly green on my screen, it's a bit paler blue in reality. As others have said, the... -
29th Feb 2024, 10:02 AM
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I started making an outboard table like that for...
I started making an outboard table like that for my 7x12, but I used about 16mm thick angle iron. The idea being I could drill and tap various holes in it to allow using the clamp set from the mill...
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28th Feb 2024, 09:08 PM
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I did miss the post with the manual, had a look...
I did miss the post with the manual, had a look earlier. It looks like the automatic feed on that model used an electric motor to drive it, from what I can tell. Also, part number 27 on page 8...
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27th Feb 2024, 10:50 PM
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So, as our new friend has pointed out - there's a...
So, as our new friend has pointed out - there's a honking great ugly box hanging off the front of my table. So I guess we'd better finally talk about it.
As most who have followed thus far have... -
27th Feb 2024, 11:07 AM
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For the grinder, I used 8mm round green...
For the grinder, I used 8mm round green polyurethane belting, since as far as I could tell it either has to be joined in place, or you'd have to remove the speed control mechanism...
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26th Feb 2024, 11:41 PM
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Love the way the front cover perfectly...
Love the way the front cover perfectly demonstrates the main reason to have a blade welder in the modern world!
That is seriously cool to see all the factory inclusions... Interesting that they... -
26th Feb 2024, 09:53 PM
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Told you lot ze Germans were here... :D I...
Told you lot ze Germans were here... :D
I would love to see any manuals or brochures you have for this machine. :2tsup: -
22nd Feb 2024, 11:01 PM
Thread: M20 Conduit Tap
by Jekyll and Hyde- Replies
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You can get a pair (taper + bottom) of new...
You can get a pair (taper + bottom) of new Chinese 20 x 1.5 for marginally more than it'll probably cost you to post one across Australia, unless you have some specific reason to avoid them...
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21st Feb 2024, 09:42 PM
Thread: Turning small extended diameters
by Jekyll and Hyde- Replies
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I... don't even know exactly what that is, but a...
I... don't even know exactly what that is, but a quick Google suggests there are 3rd party apps you can use to watch Youtube on it without the ads? Smartube seems to be the common response...
I... -
21st Feb 2024, 09:12 PM
Thread: Turning small extended diameters
by Jekyll and Hyde- Replies
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What adverts? :D I run Ublock Origin on...
What adverts? :D
I run Ublock Origin on Firefox (also available for a number of other browsers), and Brave browser automatically blocks ads anyway. The internet is SO much tidier without ads -... -
21st Feb 2024, 08:52 PM
Thread: Indexable carbide end mills
by Jekyll and Hyde- Replies
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Don't necessarily discount the other option to...
Don't necessarily discount the other option to 12mm carbide, which would be bigger HSS roughers, 16-20mm. I finally managed to find some in roughly the same price range (seems to be getting...
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21st Feb 2024, 11:08 AM
Thread: WTB L0 mount 3 Jaw Chuck
by Jekyll and Hyde- Replies
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Recut them with a carbide insert boring bar (if...
Recut them with a carbide insert boring bar (if you don't have a grinder). I've done one of mine with a regular old CCMT insert for exactly the same reason, much improved.
I'm going to disagree... -
21st Feb 2024, 10:52 AM
Thread: Indexable carbide end mills
by Jekyll and Hyde- Replies
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Pretty much what everyone else said. I have a...
Pretty much what everyone else said. I have a 25mm one, which admittedly is way overkill for an R8 bridgeport....
Was unusable initially, but the old Hercus vise I was using was apparently made... -
19th Feb 2024, 11:00 PM
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:thumbup: That marking on the paper towel...
:thumbup:
That marking on the paper towel effect is quite pronounced if you use it on old cast iron that's rust browned itself (like my bandsaw table) over the years, and leave it pretty wet for... -
17th Feb 2024, 10:15 AM
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Machinerys Handbook has 3 pages on calculating...
Machinerys Handbook has 3 pages on calculating thread dimensions. Starts on page 1999 in the 31st edition. Need to run out, so don't have time to make images for you at the moment....
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16th Feb 2024, 09:05 PM
Thread: todays tools gloat
by Jekyll and Hyde- Replies
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Technically the blade welder is actually single...
Technically the blade welder is actually single phase, just at 415v. You can run it off 240v if you can find a transformer with suitable taps and current rating to step up to 415v. Not sure if...