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: Milling machine ems-i dro pickup damage |
19/02/2022 18:48:36 |
The D type pin outs may no be the same even if the head is compatable , check the specs before plugging in.
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Thread: Boxford AUD Chuck Quandary |
17/02/2022 13:39:38 |
Posted by Simon Ricketts on 16/02/2022 18:29:42:
Evening all, I've had a Boxford AUD for a while now, but very much still a beginner. It originally came with a 4 jaw and 3 jaw Pratt and Bernard. The 3 jaw has only inside jaws which has caused issues with small jobs. I've looked into obtaining outside jaws but was told that as it was a sixties model I wouldn't be able to get a set. I've been given a unused 3 jaw with both inside and outside jaws but the back plate is different to the Pratt item. Has anyone heard of YAMA? Is it worth making a back plate for this although I'd need plenty of hand holding and I'm not sure I've got the gear to do it, but obviously it would be good learning experience. I tried buying an off the shelf plate but RDG hadn't heard of them and I couldn't find any info on the net so don’t want to go to any trouble and expense unless it’s worth it.
You can fit pretty much any similar size chuck with a recessed back on a backplate. Edited By Dave Halford on 17/02/2022 13:44:30 |
Thread: Acoustic Damping/Attenuation |
15/02/2022 12:27:53 |
Posted by Colin Whittaker on 15/02/2022 04:21:10:
The machine is a Samsung split AC 1500W power in and 5400W cooling out single phase 220V. It's ancient, a non inverter, and appears to have 4 good rubber feet although one of them is floating. I guess I could look for some superior rubber feet ... Cheers, Colin I suspect fixing the 4th foot mount down to something solid to start with will make a fair difference. |
Thread: missing parcel |
14/02/2022 20:59:34 |
Posted by duncan webster on 14/02/2022 19:50:54:
Thanks for the replies. The plot thickens, when it sold, the first message from Ebay gave an address, which is where I sent it. I got a second message, from ebay, same buyer but a different address, but I didn't notice. Something rotten in the state of Denmark? Waiting a reply from buyer, have asked him to nip round to other address, as it's only a mile away. May well be just a silly error down the line I had that once, the numpty hadn't changed his Ebay address when he moved. All fine in the end, just keep the Ebay messages flowing for evidence as a cocked up address is the buyers fault. |
Thread: workshop floor - strength question |
14/02/2022 16:00:58 |
Posted by gerry madden on 11/02/2022 18:57:48:
Thanks all for your input. I think its clear now 50mm of concrete on a compliant base is quite risky, and especially so with electrical elements embedded in it. I will have to consider something substantially thicker, probably 100mm min. In a house this wouldn't be helpful as it just slows the warm-up time. But in the workshop it would only be a background heat just to keep the room a little above ambient, so perhaps 100mm is not a problem. I had planned plenty of insulation and the calculations suggest it wouldn't take much energy to maintain a reasonable differential with the outside ambient. I already have solar panels on the house and they generate far more than I can use, so this would heat the workshop most days, and for free. The real problem now is that the planning people want to reject the whole concept due to 'green belt' concerns. So all workshop design activities are on hold until this is sorted, ....if it can be sorted. Gerry Hi Gerry, You might get away with a concrete sectional 'shed' and stay away from talk of insulation and heating. |
Thread: Plasma cutter at lidl |
14/02/2022 15:42:26 |
According to someone on the Mig forum the Parkside stuff is colour coded much like Bosch drills for example. green is domestic and Parkside black finish is industrial. The previous version was 30A with UK 13A plug the EU got the 40A with a 16A plug, which may or may not be what we call a blue 3 pin commando plug. |
Thread: Re-casting LG2/Colphos 90 into plate form |
11/02/2022 16:50:59 |
Posted by Stueeee on 11/02/2022 16:08:03:
The foundries I've used unless requested otherwise use a sand called Petrobond which takes very fine detail. Here's a wooden pattern I made and the casting that resulted. I did paint the pattern, but the actual finish was as you see here. The resultant casting: The Capital letters have the squared edge from the pattern and the script letters are rounded as per the pattern. If you CNC'd the letters on your pattern with a consistent draft you would get something cleaner and crisper than this. Edited By Stueeee on 11/02/2022 16:09:06 I once met the lad who started Prop Shop, he made lost wax bronze props that came came out of the mould much like that . His secret was the stuff he first dipped the wax blank into, gave a very fine finish and looked like white toothpaste when wet. |
Thread: Home made lathe, only hand & power tools used. |
09/02/2022 20:58:04 |
I've got a bit of bed wear, now I know I can fix it with a bit of angle iron |
Thread: Beyond a mancave |
07/02/2022 17:46:57 |
It was Ok till he flaunted the Hemi Cuda. |
Thread: FOR THE EXPERTS ! |
07/02/2022 14:05:52 |
Posted by noel shelley on 06/02/2022 23:58:45:
Questioning of others involved in the rebuild suggest that the block faces MAY have been skimmed. Things like liner protusion, valve and injector height Etc were not understood by some of thoses involved in said rebuild. Where can I purchase a new magic wand - I may need it ! Noel. If this was the case then the inlet manifold should have also been done as the heads lower and move closer together. On car engines depending on the type of manifold this normally gives you oil leaks from the lifter valley, or a lean cylinder. It's possible the engine could have sucked in coolant. but then the colour of the 'water' in no1 would have told that story. + the lack of rust. There is nothing to exclude a chunk of valve dropping as well as the obvious bent conrod or pushrod. Is no1 low or zero compression? Did the coolant get blown out of the rad / catch tank first? Is there water in the oil?
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Thread: Standards for pipe union fittings? |
06/02/2022 18:57:59 |
Posted by Roger Best on 05/02/2022 20:44:54:
Hi folks . I have obtained a mix of nuts and cones, and I don't know what I have. This sort of question has come up before but it didn't help me in the short term, although I hope to be able to find the reference when I can get to the club and look at the old magazines. Thanks for the help. Rog Hi Rog, This is a simple the steam fitting is sized to fit the pipe. The cone fits pipe and the right nut is the one that fits the cone properly. Just like in full size house plumbing you never see a nut size mentioned but a 22mm fitting falls off a 15mm pipe. |
Thread: Needs a good home |
06/02/2022 14:34:50 |
Posted by br on 06/02/2022 14:30:57:
The two different trunk thingies bore sizes are interesting ? Does this follow full size practice ? Thanks bill Edited By br on 06/02/2022 14:31:59 Compound |
Thread: Non-warping Wood for Base? |
06/02/2022 14:33:11 |
That big would need an engineered hardwood floorboard such as the B&Q ones with a matching beading around the edges to hide the pine innards. |
Thread: Help buying multifunction Compound 2 Axis 4 Ways Working milling table |
03/02/2022 16:29:09 |
Posted by Wayne Rowley on 03/02/2022 13:55:46:
Hi all, Wayne,
Give ArcEuro a ring |
03/02/2022 16:25:49 |
Howard, Wayne wants it for drilling Looing to buy a milling table, but I need a good one, as when moved into position, for drilling several holes over and over in 40mm x 8m bar, and other metals for my wrought iron firm. |
Thread: Possible Myford 7 safety issue |
02/02/2022 15:32:56 |
Posted by not done it yet on 02/02/2022 14:52:47:
Unless this machine was switched only at the plug socket, to which it was likely connected, there will be a switch between the mains and the motor - so likely the machine is connected to an earth in there and therefore protected. The only part not earthed would be the motor (due to that insulated carrier) so only the motor will not be earthed. Not a safe situation, even if the rest of the machine is earthed. Relying on RCDs, etc is not a good way to avoid a 240V electrocution is not too good where an initial shock could cause contact with revolving machinery. I need to try harder. If, whatever is suppling the lathe with power is unplugged from the mains it will remove the earth point . My lathe gets unplugged to run the compressor. This much like the waterpipe in our houses leaves a large lump of partially bare metal unearthed which is why plumbing is earthed. |
02/02/2022 14:51:53 |
Posted by ega on 02/02/2022 10:44:17:
I'm an electrical ignoramus but it occurs to me that the reason for the additional earth was the rubber resilient mount of the motor preventing the standard earth from earthing the whole machine? I have the Newton Tesla package on my S7 and wonder what effect this has on the issue you have identified. If you have the package with the moulded plugs then there's no effect at all. If you then modify the installation with lights and or a DRO with separate plugs then you bring extra live feeds that may supply risk of shock if the Newton unit is unplugged and the extra feed cables have been damaged and touch the lathe.. |
02/02/2022 14:19:57 |
Posted by Dave Halford on 02/02/2022 13:34:43:
Posted by ega on 02/02/2022 10:44:17:
I'm an electrical ignoramus but it occurs to me that the reason for the additional earth was the rubber resilient mount of the motor preventing the standard earth from earthing the whole machine? I have the Newton Tesla package on my S7 and wonder what effect this has on the issue you have identified. What does the supplied installation document say? Apologies for the pointless question, the other Newton thread says there isn't any. |
02/02/2022 13:34:43 |
Posted by ega on 02/02/2022 10:44:17:
I'm an electrical ignoramus but it occurs to me that the reason for the additional earth was the rubber resilient mount of the motor preventing the standard earth from earthing the whole machine? I have the Newton Tesla package on my S7 and wonder what effect this has on the issue you have identified. What does the supplied installation document say? |
Thread: Boxford VSL 500 Drive Pulley |
31/01/2022 17:52:37 |
Posted by Roy Birch on 31/01/2022 17:11:23:
Yes you are correct, that is also one of the reasons I feel making a new hub from a block of cast iron. Using this, though it may be too small dia would be a lot less work, it's the same idea as a Bull gear repair. Rapid metals do 125mm ena1 3" long for £19+vat cast iron is much dearer Edited By Dave Halford on 31/01/2022 18:04:10 |
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