Here is a list of all the postings Dave Halford has made in our forums. Click on a thread name to jump to the thread.
Thread: Warco MD30B Major Mill |
08/04/2023 12:12:40 |
Posted by paul mcquaid on 06/04/2023 23:24:36:
Oh wow. So £450 is pretty good then? Lol Still good, but if yours is actually a Minor searching sold prices cuts out the dreaming sellers. |
Thread: Timber and the risk of it causing corrosion |
04/04/2023 16:58:29 |
Posted by SillyOldDuffer on 04/04/2023 10:33:24:
Dare I suggest Model Engineers are often naive about materials, tending to believe family names refer to one thing, or are all much the same. No so, there are thousands of different 'steels', over a hundred 'Brasses', and dozens of 'Bronzes'. In this case there's a isn't a single wood called 'Oak'. Instead there are over 500 members of the oak family, plus a number of woods called 'oak', that aren't Oak at all. As plants have adapted over millions of years to their environment, it should be no surprise that English Oak is not identical to Asiatic or American Oak. Thus some oak woods are far less corrosive than others. The simple answer is making a tool cabinet out of the wrong type of oak will lead to tears. Dave In the case of the first link the National Physical Laboratory refers to American species such as White Oak. Doing anything suggested in that paper with English Oak will give you a big blue/black stain from the steel and if left there it will rust away. |
Thread: Repairing plastic hinges |
03/04/2023 13:00:20 |
You used to be able to get plastic hinges for model aircraft control surfaces maybe they still use them. |
Thread: Spindle bearing grease? |
03/04/2023 12:33:38 |
Steven, Given what this link tells us about dry lubricants I think the answer to your question is yes. If you put in too much the unshielded bearings will throw it everywhere so be sparing with the grease. |
Thread: Burnerd chuck jaws |
02/04/2023 20:31:41 |
Chucks sold with Sanou part numbers can be found from Vevor at the old Sanou cheap prices only without any identifying marks on them. Someone on here thought they were as good, but may be a gamble. |
Thread: Faceplate size for 4.5" Boxford AUD |
01/04/2023 19:16:01 |
Would the 9" be for the larger ME10 Boxford? |
Thread: Can I get an MT1 extension with a through hole? |
01/04/2023 19:12:29 |
Posted by Rowan Sylvester-Bradley on 01/04/2023 18:43:53:
Posted by Michael Gilligan on 01/04/2023 17:59:56:
With respect, Rowan … I fear that ‘flexible’ might be the unfortunate word there I find it hard to visualise an ER32 chuck on a MT1 taper doing anything very useful. [ Not sure what this milling job of yours involves, so I may be barking up the wrong tree ] MichaelG. Are you saying that an MT1 mounted collet cuck will be too flexible to be of any use? And that a faceplate mounted one would be better? I don't have the experience to know this for myself, so if that really is the case, I will have to find a different solution. But then I ask myself, why would anyone sell MT1 collet chucks if they don't work satisfactorily? Rowan Rowan, As you put it that way. Do exactly what you want, buy an extra MT1 blank and drill it 6mm clearance.
|
Thread: Myford ML7 help! Video |
01/04/2023 11:43:09 |
As Jason says above. Assuming the Myford itself is not very stiff The motor is very slow and nowhere near 1400rpm. The capacitor should be in the black plastic box and not mounted in a terry clip. Someone has tried to fix it and failed. Running it in it's current slow state the start winding will be constantly powered and hence overheating. You likely need a new motor. |
Thread: Warco MD30B Major Mill |
28/03/2023 11:33:31 |
That explains why Pauls doesn't match the info from Warco. So can we now assume that the missing clamp bolts may be why the tram is off and why he's somewhat unhappy? |
Thread: Warco Major mill wiring |
27/03/2023 09:56:40 |
Posted by paul mcquaid on 26/03/2023 23:04:32:
Thank you. This is what I thought until a you tube video by multiple people kept saying just undo a couple of bolts and tap lightly with mallet. to set it up and then found when Warco sent a PDF of thier current major it was different too. But at the end of the day tramming for this model is basically stuffing a packing piece to which ever side levels the head measurement on a DTI. Is there a way to measure for being dead centre of the table I.E so it doesn't cut an uneven depth as well as the height? Thats shown in the Utube link i put in your first thread. |
Thread: Warco MD30B Major Mill |
26/03/2023 23:27:12 |
Posted by paul mcquaid on 26/03/2023 19:45:35:
Hi, So this means there are no tramming adjusting pinch bolts as shown on various youtube and the later Major manual pdf sent by warco then? They seemed to imply that you undid a couple of (unshown) bolts and tap with a mallet to adjust the alignment. When really what you have to do is stick a spacer (shim) under whichever side is needed to be adjusted. It has an MT3 ER32 collet chuck as well as a drill chuck because it is a drill too.. I have already said I am new to this and trying to find info on which bolt adjusts what on this specific machine is virtually impossible. It seems to be assumed everyone that wants to do machining at home has been fully trained in all aspects of engineering at a college or somewhere. Unfortunately I am not one , But would like to learn, If only I could find any info...
Try this one Paul Tramming a round column mill - YouTube as usual with U tube there's 75% faffing and pointless chat It's probably the most mistreated very old mill I've ever seen and the shim looks huge. Btw I have to say that around 75% of those on here have not been machinists, several are from Telecoms, myself included and one is still a Vet. With model engineers the big problem is they like to Mod things because someone on Utube says it's much better and will spend an hour telling you so, but miss out a vital step and then you end up with a machine thats different others. For instance the mill in Old Marts link can also be found as a google photo search where the photos are not cropped, one shows two of the bolts holding the column to the base casting one stands proud and is not painted so it's a mod for tramming. However a shim is better as the last thing you need is building in extra wobble that shows on the work. |
26/03/2023 19:08:06 |
Surprised to see both Warco Majors are still current in the Warco website. The GH (gear head) can tilt left or right, the belt drive cannot. Both round column mounts look to have the same 4 bolts at the base. Should the tram actually need fixing it's fairly obvious which bolts will need packing after the removal of any paint left in the joint. Hopefully the machine will already have a milling chuck and a vice. The drill chuck supplied from new is not suitable for milling. |
Thread: A tool for sharpening milling bits. |
26/03/2023 11:37:28 |
Posted by Steve Griffiths on 26/03/2023 11:04:49:
Thanks for the replies folks. Chris - I'm from Brum, now working in Shropshire.... small world Martin - There are certain parts of our course that require side cutting - just not a lot of it. I completely forgot about insert mills, it just never occurred to me to have a mix of both types ! I'll look into that tomorrow. The EMG machine looks perfect - now to find who sells them
EMG does link but not as easy as it used to be. |
Thread: State Pensions - Notification thereof. |
25/03/2023 16:00:08 |
Posted by daveb on 25/03/2023 14:30:55:
Posted by vic newey on 25/03/2023 12:18:43:
The government's shameful decision to tax state pensions is the thing that really gets me. Probably not the best place for this discussion though. daveb Mine isn't, the personal allowance is £12,570 which is more than £200 a week Payments of over £40,000 a year into private pensions are taxed and also if your pot is over a million quid , which affects only the rich. Edited By Dave Halford on 25/03/2023 16:00:52 |
Thread: Parting off using a powered cross feed |
25/03/2023 09:16:21 |
Posted by Chris Crew on 25/03/2023 08:37:22:
it's a good thing if you have power Xfeed and it works better than manual otherwise there's no point and it's back to the hacksaw. I am assuming that you mean taking a hack saw to the work-piece whilst it is still in the lathe? That to me would be a very big 'no, no'. How many lathes have we seen with hacksaw marks gouged into the bed at the head end because a person was also unskilled in the use of a hacksaw and applied excessive downward pressure causing the blade to crash through the cut and into the lathe bed? Apologies if my assumption is incorrect. Edited By Chris Crew on 25/03/2023 08:38:37 Exactly Chris, there's lots of them out there. Don't know why a using the bench vice is so un appealing. |
Thread: Plasma cutter at lidl |
25/03/2023 09:03:27 |
Other than cutting metal and blowing out broken taps, which is still cutting metal really I use mine for for shaving or errr ................................................ It smells terrible. Edited By Dave Halford on 25/03/2023 09:04:03 |
Thread: Parting off using a powered cross feed |
24/03/2023 23:09:57 |
it's a good thing if you have power Xfeed and it works better than manual otherwise there's no point and it's back to the hacksaw. It's also a good thing if Xfeed backlash is minimal because if the tool digs in suddenly your 4thou per rev can be 25 thou and everything stops. |
Thread: Name of Tools Used for Mill Tool Holder Retaining Bolt |
24/03/2023 22:42:45 |
Looks like a plumbers basin wrench might fit the bigger nut with a little grinding |
Thread: Plasma cutter at lidl |
24/03/2023 16:11:53 |
Posted by Milly S on 24/03/2023 07:15:52:
Hi Ian I’ve read all the comments on the plasma cutter I was also wondering weather to buy one my local Lidl have them in store now £150 not sure if i should buy one what do you use yours for this one needs a separate compressor at least 4bar
Steve, The green 30A one that needed a compressor was originally sold for nearly £90 a couple of years ago. It's your money. |
Thread: 6 jaw chuck - why? |
23/03/2023 17:08:50 |
Rotagrip lists them as a drill grinding chuck. |
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