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: Need a lot of help from you good people|
That depends if you need the weight on the wheels for traction or not
There's what looks like old perished rubber cabling mixed with PVC, no idea what all the OTT twisted together wire is for. The engine may have been part way through a rebuild. There's a lot of reliance on airgaps for insulation.
I would take a motor off and look for the motor plate for the voltage, give the comm a shine with wet and dry and then try bench running it. There are so many Heath Robinson bodges on view and a full short across a 100A battery might be more exciting than you bargain for.
|Thread: My Faircut Lathe|
This one is mine - much smaller serial number, did you know it's reversible by moving the brush carrier.
Edited By Dave Halford on 18/08/2019 21:01:22
Motor looks familiar 1/4hp American Century Electric Co. with brushes, WW1 vintage?
Edited By Dave Halford on 18/08/2019 20:35:42
|Thread: Can Anyone Help Me to Identify This Very Old Boiler Please?|
If this was built to be used as an Autoclave and the manhole is where items were placed to be sterilised why would the door be secured by a nut requiring a spanner to be used instead of a large handwheel or spider? It just doesn't look designed to be opened on a weekly basis.
It shouldn't be to hard to work out the intended pressure range with the lever dimensions and weight of each ball. You can see notches along the bar to position them, though if the total thickness is only 1" the steel is quite thin so would 2 balls ever have been intended to be used?
Edited By Dave Halford on 17/08/2019 09:44:11
|Thread: Kennedy Hacksaw bearing replacement|
it's easier to file or grind clearance on the top slider and the blade carrier, for some reason the wear is not even (like car piston bore wear you need to avoid the step with 'step dodger rings' if you just fit plain new rings the step smashes them) and simply adjusting the slider makes the carrier stick if you dont.
|Thread: Meter Probe|
Still got mine and they still push the probes off
|Thread: Mystery Tooling|
Is there a tool post grinder to go with it?
|Thread: Centec 2A riser block|
You may have to make it
|Thread: Blown Fuse|
It is entirely possible for a fuse to fail due to mechanical reasons when no electrical fault is present.
I have had a spark fly past the motor pulley on my rear drive Rockwell 10" bench lathe during a stall, the tip was also chipped. Motor? Nope, that is a sealed externally cooled one. Turned out to be an errant out of view QCTH jamming the vari drive pulley and also producing the spark.
This in the OP The tool was a brand new,shiny tip for ali. sounds like a carbide tip, which 99% of the time will chip or flake if the drive stalls.
|Thread: Is Buying a used live steam loco cheaper than building one?|
A new commercial built 5" running is 15K
|Thread: Searching for an Off-The-Shelf, Light-Duty, Rack & Pinion|
Is this roof hinged on one side if so 2 gas struts would do it.
|Thread: Is there a type of Sellotape/"sticky-backed-plastic" that forms a PERMANENT bond|
Solartex used to work well as a hinge. iron on
|Thread: 3 phase - radio puzzle|
The spec should be written on the cable sheath.
My compressor has a screened power lead with a clear sheath so you can see the braided shield.
|Thread: Western Steam|
Think about it.
The price of copper etc fluctuates wildly. Try asking a plumber for a quote for a new heating system for 12 months time - you wont get one
|Thread: Buying a Lathe, as always the age old questions...|
Take a known round bar to do this anything more than 5 thou wobble is an issue.
The cross slide can be adjusted so test at each end of travel and in the middle, if its OK in the middle and tight at one or both ends the cross slide dovetails are worn and may need a scrape.
Any fool can paint a lathe and call it restored, normally done by dealers so look at the rest of his workshop.
The yanks like to make guns (more is better) Myfords are too small
|Thread: Dangerous 2" Scale BB1 Boiler|
Makes you wonder if boiler and certificate got married sometime since 1975, I've seen boilers that bad on ebay, they can be a handy source of cheap castings or gears when the builder realises they do not have the boiler skills required.
|Thread: Milling Problems|
Assuming the plate isn't too hard, and it might well be given the heat you mention. Try a file and see if it marks the casting, if it doesn't then there's the problem. Inspect the cutter tips for damage. Good cast iron can be worked with HSS or a single point carbide cutter with lowish power.
The face mill might be too big for both the power available and rigidity of the Rodney, if the plate files try a smaller end mill.
|Thread: A little rant about Emojis and their kin|
well, at least they have people with facial hair and jaundice covered.
|Thread: Angle grinders - Dangerous or not|
Always start 7" and 9" grinders away from the job, especially with cutting discs fitted, the kick can break the disc especially if it's already in a started slot.
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