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Member postings for not done it yet

Here is a list of all the postings not done it yet has made in our forums. Click on a thread name to jump to the thread.

Thread: When is 9mm not 9mm?
04/01/2018 13:27:27

Cloth is often 90mm wide because they just had to go metric but the 36in loom doesn't stretch to a metre.

No way would 90mm stretch to any where near a yard!! Unless it was a rubber band!smiley

But I know what you meant.cheeky

Thread: Cutting oil -
04/01/2018 11:42:58

Kerosene, like other distillation fractions has a range of alkane carbon chain length (it just being a particuler fraction of the base stock). Not only is the chain length an arbitrary value, and may overlap with other fractions, the % of each constiuent can vary. Depends somewhat on the origin of the he crude oil.

WD40 looks to be more volatile than kero.

Thread: Looking for LED Lamp
03/01/2018 12:35:05

Unfotunately not IR

Many, or most, daylight cameras have an internal IR filter. Removal of said filter often allows IR photos, but may need a slight focus adjustment (not too important in this application). Then just use an IR led on a daylight switch. I would have thought that a micro switch, turning on a light when the door is open, might be part of the solution.

Is this for security or just a reminder to close the door before retiring?

Thread: Whats this tool used for ?
03/01/2018 07:32:40

I reckon it would work and then likely jam!

I’m thinking of the pipe bending springs where you can remove them by twisting anticlockwise to contract the diameter a bit for easier removal.

Unfortunately, in this case there will be a morse arbor jammed inside making it very difficult to loosen if there is any free spring close to the tang.

Might work but i would not risk it. Anyway, cheaper to have a spare reducer!

Thread: Hand shaper
02/01/2018 21:34:52

OK, if it is the Adept. Here are a few pointers .

If it has a manual feed, a finer thread would most certainly be better. The Drummond has an 8 tpi feed screw and it is a pain to advance it in sufficiently small increments while being consistent in size of cut. My Alexander has a thread pitch of less than a third of that.

As in my first reply, an auto crossfeed would be a great improvement. I’ve started on the parts for my Drummond, but other things have got in the way over the Christmas period. I will get to use it properly when sorted and be able to compare the machines (OK, the Drummond will win).

One of the gib adjusters on the cutter height adjuster would be better changed for a locking screw - to reduce any movement/backlash in the mechanism wihie operating.

With T-slots, for table height adjustment, it is fiddly to have to set the table level every time it is altered.

They operate better with the cutting edge further back, than in the lathesdotco pics. The proper cutters had a crank in them. Not sure of the proper term for them. Operating with the cutter as short as practicable is good (just look at the tool extension length on some pics!).

Cutters are single point, so far cheaper than end mills for a milling machine. But you do need a means of sharpening the cutter to a razor sharp edge - and to keep it like that.

Apart from being slow, they are a good machine for getting really flat surfaces and useful for other jobs which might be awkward with a milling machine, or it might avoid breaking down a set up on the mill.  Definitely good for internal keyways.

Those without a shaper (of any form) will often say they are simply not needed, but those with them usually would not wish to divest themselves of their machine unless almost forced to.

Hope that helps. I like shapers - even hand powered ones.

Edited By not done it yet on 02/01/2018 21:38:42

Thread: Looking for a Centec 2 arbor and Mk III head
02/01/2018 16:21:36

Hugh,

Scratches on the surface of a morse taper are no particular problem. Just stone off any edges - they don’t need 100% contact area.

Is the horizontal arbor the original 1” jobbie? You may find that you can use an unworn portion for most jobs?

I made a 22mm horizontal arbor by shrink fitting a length of round stock into a MT2 blank end arbor suitably machined. Works OK so far.

BTW, just how many hen’s teeth are you offering? I’ve currently got none at all - which means that if you don’t have any more than I have, you are not offering anything!smiley

Thread: Attachment value
02/01/2018 15:47:30

Deleted - double posted!

Edited By not done it yet on 02/01/2018 15:48:33

02/01/2018 15:47:29

Agreed Jim, an extraordinary post. I thought he was thinking of selling parts that he considered of no use to him, so surplus to his requirements - now or in the future - not that he was hard up for a couple hundred quid.

Thread: Now that's a big un
02/01/2018 12:41:32

The longer the better for making checks on a near red hot lump of steel, I would have thought!. A sensible fellow, I would say.

Thread: Making an alloy gear knob, help needed
02/01/2018 12:33:41

You got your lathe in your bedroom? Or aquick recovery from you sick bed, yesterday!smiley

01/01/2018 19:19:09

So retro that it would likely need a thread on the forum of how to hold it while cutting a metric thread (to replace the imperial one) without damaging it.smiley

Thread: Attachment value
01/01/2018 19:10:09

I have a virtually unused item in my garage that I intend selling. I see them listed at £1000, bar the odd quid or so, on epay. They never sell (well, not to anyone sensible). Likely those vendors are either looking for a mug or are offering the same thing at what might be a huge apparent saving (cf the £1000 item) but still at more than the realistic price that most people are prepared to pay. It’s called wheeling and dealing. Mugs watch out!

You see it all the time on auto mart - the same vehicle up for sale at slowly diminishing offer price until someone takes the bait and bites. It’s called fishing, a Dutch auction or (by computer) phishing?

Thread: Recommendations for a quality milling vice?
01/01/2018 15:49:27

Here is a link to your thread, back last year:

**LINK**

Some either don’t like the action or can’t get on with them. I have found that the Allen screw is a bit of a PITA, as it continually attracts swarf and tightening/loosening can be a bit space constricted if in close proximity with the work or tool.

Thread: Hand shaper
01/01/2018 12:12:16

Looks like it needs a bump or nobody has any experience!

I have not seen a pic or any other detail of this one, but if it works as well as a Drummond it will be good. I also like my Alexander as it provides a superb finish on aluminium, even without its autofeed bits (although it would be far easier to operate with an automatic cross feed).

If this is a build project an autofeed system really needs to be included, to make operation more of a continuous nature as I find manually altering the cross feed every stroke makes getting into a rhythm, with the cutting stroke, a bit awkward or slow.

Thread: 3" precision vice
01/01/2018 11:09:47

“the fixed jaw has a slight curve accross the face”

Isn’t that what a milling machine is good at - milling things flat?

31/12/2017 22:33:29

Mine is only 70mm and it came from our reliable supplier Arceurotrade.

Perhaps a little more expensive (actually I doubt it) but no risk of getting a wrong un.

Works well enough.

Edited By not done it yet on 31/12/2017 22:50:07

Thread: Gear specs
31/12/2017 20:26:45

Duncan,

Maybe you are not adding 2 to the tooth count before dividing by 32?

Or maybe these gear calls are too complicated for me!

 

Edited By not done it yet on 31/12/2017 20:30:04

Thread: Recommendations for a quality milling vice?
31/12/2017 17:51:37

That 6” Abwood might look silly on a Tom Senior Junior.smiley

Thread: Attachment value
31/12/2017 13:13:22

One could arrive at a realistic asking price and offer items on the forum sales? Avoid giving epay about 13.5% and saving someone on here some cash?

Thread: Recommendations for a quality milling vice?
31/12/2017 05:51:09

I watched that video a while back.

I don’t think I have seen anything more blatantly biased and comparing apples with oranges - like comparing a Roller with Ford! Or even a Roller with a series llA Landrover.

Likely seen some as blatant, but he sure doesn’t deserve any credits for that one.

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