Here is a list of all the postings HasBean has made in our forums. Click on a thread name to jump to the thread.
|Thread: MEW 184|
I think that there were variations on the fittings on Myfords, the oil nipples on my S7 gearbox were 1/4" press fits, the part in my catalogue is listed as 'Lumatic HDFV4/45' which is either a straight or 45 deg 1/4" shoulder press fit.
Having said that many of the supposed BA fittings have turned out to be metric, but I think that was the case on some of the machines (mine was built in 2000).
As for oil guns the original 'supplied with' unit leaked like hell but was able to force out oil at a rate of knots, unfortunately up my sleeve and rarely it should have gone The new 'leak proof' replacement has to live in a jar as that leaks just as badly, although when used the oil does go where it should
DMR, I must have a go at what you have done, that's where mine leaks from too
|Thread: DRO on a Mill/Drill?|
The gib strips have a habit of moving of their own, the adjusting screw isn't quite up to the job, allowing the strip to move of it's own accord (I really need to make some new ones that fit better, it's somewhere on the to-do list ). As for the lead screw backlash adjustment, there's nothing obvious! I assume that it's a split nut but taking the table apart seems to be the only way to access them, the backlash on the x-axis is about 1mm from memory but bearing that in mind the table movement is pretty accurate.
Thanks for the replies.
I had fitted an Ortec DRO to the Z axis a few years ago which made a great difference so this in a way is what is swaying me towards doing the other two axis'.
Graeme, I've dug out my copy of MEW 108 and I see what you mean, there is a nice uncluttered flat face on the right of the head which would suit that mod nicely. If I could eliminate (or certainly reduce) the grief of relocating the head then haviing a dro would give me alll the bells and whistles I'd need (for now at least
Norman, I reckon you have the same type as mine, just had a look and it's marked as a MD-30N dated 1995, didn't realise I'd had it that long!
I hadn't considered the Shumatech system but that would certainly fit the bill.
You've all convinced me that a dro is the way to go (not that much arm twisting was required), just a matter of which one now.
After much loss of sleep, gnashing of teeth and pulling of hair I've decided to do what I should've done in the first instance and ask those who know!
Basically is it worth fitting a DRO system to my mill/drill?
It's a Warco RF30 which I've had for a good 12 years or so, hasn't done a lot of work but when the need has arisen I would've been lost without it.
Admittedly the round column annoys me as does the leadscrew backlash with 'self adjusting' gib strips but the X-axis power feed and 26" x 8" table is nice.
Any thoughts would be much appreciated.
Edited By HasBean on 23/09/2011 16:39:15
|Thread: hole size for tight fit|
Try Here , always found them very helpfull (usual disclaimer etc)
|Thread: Classified Adds|
Well I've tried;
XP pro (32 bit) IE8, IE7, Firefox 4, Firefox 5, Opera
Vista home premium (32 bit) IE9, IE8, Firefox 4, Firefox 5, Opera
Windoze 7 (64 bit) home premium IE8, Firefox 4, firefox 5
Not had a problem on any of them
Slighly off topic, I purchased a non contact digital tachometer from China off the Bay of E for less than a tenner all in (strange how the likes of *achine *art charge a minimum of £30 postage to Jersey )
As it was it was less than a tenner well spent
From the chart on the side of my mil/drill it would appear that THREE of the belt speed positionings were transposed! For those of you who have one it might be worth a quick check.
I then tried it on my lathe, couple of rpm out on the lower ranges up to 50+ on the higher so not bad in all.
The idea was to check the speeds so I'd have a reasonable chance of getting the nearest appropriate speed for the operation in hand.
At the very least it gave me an excuse to be in the garage on a rainy Saturday afternoon
|Thread: The Cambridge Turning Trials|
I have used the predecessor to Sumitomo T1200A (T12A) and found it gave a superb finish but, as mentioned, care is required as they did chip easily.
I now use Mitsubishi NX2525 which is also a cermet which appears to be just that little bit tougher, recommended to me by, and available from, Greenwood Tools.
|Thread: Which slideway oil is best?|
Thanks KWIL, I'll contact them and see what they say.
Now it's my turn to run out of slideway oil and I'm finding it very difficult to get. In the first instance it is not available locally so I have no choice but to trawl the internet for suppliers.
The first supplier was happy to send what I needed (5 ltrs of slideway oil and 5 ltrs of neat cutting fluid) but at nearly £60 it was stretching available funds, especially when they informed me that they had forgotten the postage so that would be another £42 please!!!!!. At that stage I politely declined to purchase. I contacted two other suppliers who advertise but never even received a reply (a simple 'sorry we can't help' would've been nice).
I am now awaiting replies from two others, the decision resting on whether their couriers are happy to send 'across the water'.
I wait with baited breath.
|Thread: Flycutter with 2 Morse taper and M10 thread|
Arrand do a range of flycutters with interchangeable shanks with a choice of drawbar threads.
|Thread: Late delivery of magazines due to adverse weather|
No 4393 or MEW so far here
|Thread: Dangerous Practices|
I've just received this issue this morning and having looked at the photos I'm afaraid I can't see the problem. I've seen this method of workholding advocated many times in various books and publications and have used it myself (I must add I have no machining background as such).
If anything there would appear to be greater jaw to work surface contact than if placed otherwise, so as long as the jaws are tight against the work what's the problem?.
It's all well and good to say it's 'dodgy', 'dangerous' or 'bad practice' but can someone please explain why?
|Thread: late subscription delivery|
I'm lucky if I receive the issues a week after the due date now, if at all even had two not turn up at all, first time that's ever happened in over ten years of subscribing.
|Thread: Carbide Insert Quality|
Andrew I've found very much the same as yourself but also use the Greenwood 'polished' inserts for fine finishing on steel, which work a treat if carefull. The general purpose tips work fine for me on most things except mild steel.
For general use on mild steel I use a Cermet made by Mitsubishi (grade NX2525) which was recommended as an alternative to the Sumitomo tips which, at the time, I could not get hold of (they are also a little less fragile in my opinion)
|Thread: chuck myford ml10|
Sorry to hijack the thread somewhat but my 5" 4 Jaw S/C chuck on it's backplate weighs a ton (OK maybe not, it just feels like it sometimes). Is there any reason that it can't be left in situ on my Super 7?
|Thread: Where to buy indexable tool tips|
I have the Sandvik Technical Data chart in front of me but without having the insert to hand makes it a tad tricky.
S Square inset
N Zero clearance angle
M or U Tolerance of inscribed circle (ie don't worry about it)
M Guessing at single sided insert with positive rake held with pin not screw
09 Closest to given measurement at 9.525mm (next is 12 at 12.7mm)
T3 Closest again, T3=3.97mm, 03= 3.18mm
XXXX = Nose radius ie 0.2,0.4,0.8 etc
So could be; SNMM09T304 (for 0.4mm radius) etc
In tha past I have phoned Peter at Greenwood Tools who has been able to supply me with just about any sort of insert in any sort of grade and has been more than helpfull (usual disclaimer)
I seem to remember that you could send Greenwood an insert and they'd be able to identify it for you and suggest an alternative.
Hope I haven't confused things too much
As the inserts have zero clearance are they double sided or just single sided for neagtive rake machining?
Any chance of a closeup picture of the insert?
|Thread: ME Issue 4381 - 02 July - Subscription Copy Delivery ?|
Getting a bit peeved now, no ME or MEW so far
Well it's the 7th now and I'm still waiting
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