Here is a list of all the postings David Standing 1 has made in our forums. Click on a thread name to jump to the thread.
|Thread: Colchester Headstock Sleeve|
There are three different bush sizes referred to in this thread, which one are you referring to?
|Thread: New coffee maker - disgusting taste!|
Isn't that straying into politics?
|Thread: "Vintage" CNC|
And in turn, I started my apprenticeship with Marconi at New Street in Chelmsford in 1969, I remember the black magic of the CNC machines there.
|Thread: ER chuck for Myford Super 7|
The one in this thread?
|Thread: Milling on the Chester Craftsman|
Sounds like a call to Chester might be appropriate.........
|Thread: ARC's Adventures in China 2019|
Stop picking on him Jason, he's got man flu
Welcome back Ketan, and sorry you have brought an unwelcome stowaway back with you!
Is that supply of just chucks, or other interesting stuff?
|Thread: Get on yer bike|
For £60, you aren't going to get much.
It probably feels horrible to pedal, won't be stable, and won't be good for you ergonomically.
This is probably one of the best half decent budget exercise bikes to go for, that isn't crap:
|Thread: Guidance on selling my late fathers machinery|
It is totally impossible to put any sort of meaningful value on the machines, without clear photographs.
One man's 'as new' Myford is another man's boat anchor.
|Thread: You tube videos of entertainment if not informative|
Indian back street butcher!
He made it from two nuts, because that was what he was asked to do, per the messaging in the 'WHY' bit at the end of the video.
Beautiful workmanship, particularly considering the humble source materials, which I expect was the whole raison d'etre.
|Thread: Progress No2 GS Pillar Drill|
First thing I would do with that chuck, bearing in mind it is on a MT, is to set it up appropriately to alleviate damage to the quill, so the chuck is facing upwards, jaws fully retracted, and using a brass packing piece in between, take the aforementioned 4lb lump hammer, and give it one full force crack with the hammer to drive the chuck home in the quill.
I kid you not, that may apply enough force to just crack the taper free, so you can use a MT extractor.
I would also try a taper extractor, and as suggested above, machine it so it has a shallower taper.
If that doesn't work, what I would try then is to make two identical wedges, and machine them thin enough so you can apply one from either side, grease them well, and if you have a big enough vice, don't hit the wedges, but squeeze them in the vice, so you apply pressure rather than force, and it is evenly from either side.
I have got some MT shanks apart that have also been together for years, you just have to work out non destructive ways to do it, whilst applying the most effective force.
|Thread: Mini-Lathe Repair|
Are you using the tool slide or carriage wheel to advance the cuts?
I note you have been playing with the gib strips
Try locking down whichever axis you aren't using to see what effect that has - if you are advancing with the tool slide, lock the carriage, if you can, and vice versa.
Also try winding on your next depth of cut, and then locking the cross slide before advancing the cut.
Just takes some of the variables out of the equation.
|Thread: Quick change tool holders|
You probably can get 16mm tools in and achieve work centre (although I don't think that is what Boxford ever intended), but you will need the deepest tool holders.
The deeper the holder, the further you can lower the bottom of the cutting tool.
The Rotagrip/Bison ones are 35 or 44mm height.
The OEM ones are 38 or 44mm height.
I have probably around 40 tool holders, a mixture of all four types.
The platform the cutting tool sits on is around 5mm lower on the 44mm height tool holders than on the 38mm ones.
What are the RDG ones? Dunno, and there is no helpful information on their website.
Unless you can persuade someone at RDG to measure the overall height of their two types of toolholder, and the height of the tool platform off the base, I would not take a chance on them.
Edited By David Standing 1 on 24/01/2019 14:59:19
Don't get sidetracked by metric or imperial, as far as I know all the Dickson type QCTP and holders are metric.
I suspect your toolholders are TO/SO, which ties in with the markings on the toolpost.
Is yours a 'Rapid' marked toolpost? Boxford fitted these to many of their X10 lathes.
Can you measure the thickness under the part of the toolholder beneath where the cutting tool sits?
I suspect it is 10mm, +/- a bit.
Last question, and the most important one, do the toolholders you have sit the cutting tool tip at the correct centre height?
If you have an SO fitting, which should be correct for an X10 series Boxford, your toolholders should be 73mm long.
And to edit and add a couple of things, firstly the Rotagrip/Bison equivalent of SO fit is TO.
You will also see there are TO and T1 holders, plus TIX.
The only difference is the height of the tool holder, and that dictates the tool height, since the floor of the TO and T1 holders is a different thickness.
For SO/TO, your toolpost should be 73x73x51mm high.
If your holders are 73mm wide and 35mm high, they are TO/SO holders.
If they are 73mm long and 44mm high, they are T1/S1 (or T1X) holders.
The two different in height holders have a different holder tool slot base height, and thus dictate the centre height of the cutting tool.
If you are really lucky and have Bison tool holders, that is easy, standard tool holders should be engraved 4494-62 or 4494-62N on the front.
4494-62 are 44mm high holders, 4494-62N are 35mm high.
Once you get your head round the way these are dimensioned, it is easy, honest!
Edited By David Standing 1 on 24/01/2019 10:00:30
|Thread: Carrier deck landings|
Fairly soft landing for a Fat Albert, that's what they are built for! A hook would have probably stressed the airframe more.
|Thread: Milling and drilling slate|
Having roofed a building with slate, the traditional way to put holes in slate (certainly that thickness) is to punch them. Seriously.
As to cutting them to size, one way is as Jason says, with something like a small sharp hatchet, or a bill hook (the straight part) etc, or these:
|Thread: SENSITIVE DRILLING|
This isn't supposed to be sarcastic, only positive - ARC are extremely helpful, would not a call to them asking the process required be the easiest thing?
I can understand why you may not want to call them, I wouldn't either - but it may be the right thing - from the horse's mouth, etc
Edited By David Standing 1 on 18/01/2019 12:48:42
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