Here is a list of all the postings Dr. MC Black has made in our forums. Click on a thread name to jump to the thread.
Thread: MT end mills slightly corroded |
11/05/2021 00:55:52 |
I was given a lot of tooling by an old chum whose wife decide that they would be moving into a flat so he had to give up his workshop which was larger than a double garage. These End Mills have never been under MY bench - generally, I don't keep this sort of thing in my shed but in my centrally heated home from where I take what's needed to the shed. They will go into the forthcoming projects drawer until I can get the use of a bigger lathe using which I can turn the tapers parallel. Looking at the cutting edges, they look to me as if they have had little use and will probably last me out. |
Thread: BA sizes |
10/05/2021 19:43:48 |
I have nut spinners for 0BA, 2BA and 6BA but I have NOT been able to purchase a nut spinner for 4BA (at a reasonable price). I have looked at the data, and that suggests that 4BA is very similar to 1/4 inch A/F Is this a reasonable inference? MC
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Thread: MT end mills slightly corroded |
10/05/2021 18:29:10 |
Posted by not done it yet on 10/05/2021 13:27:04:
In my view, the practical hole size cut is likely more accurate than the theoretical assumption (of concentricity). Further to previous, all four of the cutters are right hand with an even number of flutes. I found that I did have some thread gauges with large holes and determined that two are 1/2", one is 9/16" and the last is 1". But one of the Morse Tapers has been machine to a fairly constant 15mm and fits in a collet. I'm now seriously considering machining the other three in a similar way. Unfortunately, the spindle on my lathe isn't sufficiently large to hold these End Mills while I machine the tapers to parallel. The Scotchbrite arrived today but I may no longer need to use it! MC
MC |
10/05/2021 12:25:43 |
Posted by not done it yet on 10/05/2021 12:21:45:
I shall see if I can determine those. Easy enough. Drill a hole as a pilot, apply cutter axially, then measure the new hole diameter. I was thinking of using a Digital Caliper across the end to measure the diameter directly. I appreciate that this would NOT work with an odd number of flutes. I think the cutters are too large for any drill gauges in my possession. MC
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10/05/2021 10:38:51 |
Posted by Graham Meek on 10/05/2021 08:03:11:
Morse Taper cutters that resemble an endmill, but have a Tang, and not a Tapped hole, are usually used to produce counterbores.
That's very useful information which I shall bear in mind. Unfortunately, they are NOT marked with size; I shall see if I can determine those. MC
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Thread: T Handle Allen Key Sets |
10/05/2021 10:31:29 |
I did a three afternoon workshop course as part of my Physics degree over 50 years ago. One of the exercises was to make a T-shaped Allen Key Holder on lathe. I think that I must still have it somewhere and my executors will find it when they clear the house! MC |
Thread: MT end mills slightly corroded |
10/05/2021 00:44:59 |
Posted by old mart on 09/05/2021 17:29:49:
I would also avoid using any tanged cutter sideways, it is looking for trouble. That is why mills use drawbars. Which prompts me to ask why does anybody manufacturer tanged MT2 End Mills? MC
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Thread: Milling on a Lathe with a Vertical Slide |
09/05/2021 12:53:05 |
Posted by Andy Carlson on 09/05/2021 12:15:06:
FWIW the two I bought most recently were SDFC3-10.00-S 10.00 HSCo Multi-Purpose Cutter Short Where did you buy these,please? Clicking on them had no effect. MC
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Thread: Cheap Calliper which holds reading |
09/05/2021 12:18:42 |
Posted by Peter Cook 6 on 09/05/2021 12:10:42:
Ady1 interestingly the pictures on the one you link to show a 0.01mm resolution, but the writeup only claims 0.1 resolution - more sharp practice on E-bay? Edited By Peter Cook 6 on 09/05/2021 12:13:14There's a huge difference between Precision and Accuracy! MC
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Thread: Milling on a Lathe with a Vertical Slide |
09/05/2021 11:32:00 |
I inherited a lot of Milling cutters in various sizes, both Imperial and Metric, some with threaded shanks and some plain. I hold them all in collets and they do the job. Sometimes, "bundles" of milling cutters are offered on Ebay; it's a gamble as to whether they will be in usable condition but, bear in mind the cost of new from a reputable supplier and set your maximum price. You could be lucky! |
Thread: T Handle Allen Key Sets |
09/05/2021 10:54:07 |
Posted by Bob Stevenson on 09/05/2021 07:47:55:
Dr Black........you have reminded me that I should have mentioned that the Silverline hex’s come with a folded steel rack which has slotted eye-holes so can be readily unclipped from bench and taken to car or washing machine etc The one that I returned had a similar rack; it was VERY fiddly getting the key through the lower hole. Even though I write it myself, the home-made wood rack is better and easier to use. |
09/05/2021 10:49:08 |
I have some Ball-ended Bondhus ones of the Screwdriver Type which I use for my Taig Lathe (which uses strange American size screws). I find then excellent. But they were expensive!
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08/05/2021 23:33:09 |
Posted by Bob Stevenson on 08/05/2021 21:44:04:
The only thing I don't really like is that they are blue!!
I think that blue is "Silverline's colour" My Aldi (or was it Lidl) set have red handles but I used a silver coloured marker to put codes on the handles so I can easily see which is which. I made a stand for them by boring holes into a length of 2 x 2 (or should that be 50 x 50mm) wood. That sits in a cupboard under my bandsaw.
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08/05/2021 19:02:04 |
Posted by Bill Phinn on 08/05/2021 18:44:27:
Posted by ega on 08/05/2021 18:29:12:
Can you comment? I suspect MC is talking about the type of T handle wrench that has only one business end, i.e. at the foot of the T. Presumably these do not always have the short arm of an ordinary allen wrench hiding somewhat redundantly inside the plastic handle. Come to think of it, if I'm right, I'd be interested to know what they do have. Edited By Bill Phinn on 08/05/2021 18:49:10 I think they must have had a metal shank inside a moulded plastic handle but they were returned to the company and I did not take any apart to investigate the construction. The set currently offered have the "short end" poking out of the handle so presumably have an Allan key hidden inside the plastic. MC |
Thread: MT end mills slightly corroded |
08/05/2021 18:50:38 |
Posted by bernard towers on 08/05/2021 18:40:29:
you don't make it clear if they are tanged or threaded, the ones I have are tanged and are under the bench and thats where they will stay They have Morse Taper 2 shanks. I did NOT notice any threaded holes for a drawbar but they are presently in the shed and it's cold outside. Does that make a difference as far as cleaning up the taper is concerned? They are quite large sizes and I would like to avoid throwing them away, if possible |
08/05/2021 18:45:23 |
Posted by mark costello 1 on 08/05/2021 18:30:24:
What's wrong about being American? Americans speak a different language. |
Thread: Allendale-Ultrasonics |
08/05/2021 17:58:20 |
Posted by ChrisH on 07/05/2021 22:35:58:
How bizarre, website perfect with the iPad, no pics with the MacBook. How does that work then? I have similar problems! Some web-sites refuse to either work at all or fail to work properly. Sometimes messages appear telling me that I "MUST" upgrade my browser. The browsers on my computer are the most recent that will work on my Operating System. As I see it, if a company's web site will NOT work properly with my system as it is, then they will NOT benefit from my business. I have an Allendale Ultrasonic bath which I bought from their premises in Hoddesdon. When there appeared to be a fault, I took it back and their technician conducted extensive tests while I was there -this was before Covid, of course. I have always found the people at Allendale very pleasant and helpful. MC
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Thread: T Handle Allen Key Sets |
08/05/2021 17:45:40 |
I had a set of T-handled Hex Wrenches from a local firm in Standon (which has now closed its Trade Counter and only supplies by Mail Order). I found that one of the handles turned but NOT the hex shaft - so I took it back where it was refubded without argument. I also have a set from Aldi - and they have NOT let me down yet. MC
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Thread: Cheap Calliper which holds reading |
08/05/2021 17:37:20 |
I hope that Mr. Cook will write up his modifications to his Taig Lathe and make it available to the whole Taig community. Submit, perhaps, to Model Engineers' Workshop? MC
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Thread: Milling on a Lathe with a Vertical Slide |
08/05/2021 11:52:59 |
When I did some milling on my Taig Lathe, I held the Milling Cutters in a collet. Have you investigated fitting a collet chuck to your lathe? ARCEurotrade (no connection - usual disclaimer) have some in their catalogue; one may be a direct fit on your lathe. I appreciate it will take a long time, but have you considered cutting the plate with a hacksaw (or an electric jigsaw)
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