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Hi, Did you make sure that the taper was the correct angle and the start and end diameters were correct for the thread form? If it is a split die you could try altering the diameter of the die and see if that helps. I would also contact PM Research to check the required diameters. Martin

Hi, That is a Multi Revolution, Balanced dial: For reading the difference from a reference surface. Martin

Hi, Yes, that is a long travel indictator as seen here :- https://www.ebay.co.uk/itm/Long-Travel-Dial-Gauge-DTi-Dial-Test-Indicator-0-2-x-0-001-From-Chronos-/372220536599 Martin

Hi, Lift the frame to take the blade out of the cut while the saw is running. Does the knocking stop? If it does it is most likely the blade is faulty at some point, check the teeth and the side of the blade especially where it has been joined together. You could also watch and listen when the...

Hi hfguy, Try lowering the cutter speed, chatter is usually down to rigidity and speed. See here :- https://www.kennametal.com/en/resources/tech-tips/milling/tech-tip-32.html I hope you solve the problem. Martin

Hi ICEPeter, The metal is mild steel and yes the surface is very rough but that was using a different tool and a rough cut just to reduce the diameter.;) If you look at the end where the new tool holder has cut a small amount off then you can just see that the finish is much smoother. Once...

Hi Niels, As requested, pics of the new tool in use. The holders for the square carbide will have the carbide in the far left and right corners to enable cutting up to a shoulder. The other version will be horizontally into a round bar for use a a boring bar, similar to those which normally...

Hi, Thanks to Niels Abildgaard supplying the carbide I have just completed my tangential tool holder. It works really well and leaves an excellent finish even with deep cuts. The next project is to make a pair of holders with 3mm square carbide for left and right cutting, again the carbide...

Hi, Use the yellow pages to see if there is a local engineering firm with an EDM machine and get them to burn it out. Martin

Hi Brian, Souns like just what I need, thanks for the info.:D Martin

Hi Folks, I am considering getting a Pyrometer to use for tempering steel but I am not sure if the infra-red types are the way to go.:confused: Could someone advise me please? Martin

Hi Norman, I agree, there is so much waste these days that really should be put to a good use.:( Good point about the markings on plastic I hadn't thought of that.:o Martin

Hi Goldstar, No my thoughts were not elsewhere.:) I know they are plastic but I wanted to know which plastic was best for a threaded hole.:confused: I didn't know which plastic to use in Loo of another material.:p Regards, Martin

Hi Guys, Thanks very much for the replies.:D It sounds as if Delrin would be good for what I need, I'll go for that. Toilet seats???:confused: Sorry but I don't get the reference. Martin

Hi Folks, Could I have some advice please on what would be the best plastic to use for a threaded hole? One that would give good self lubrication and make a tight fit. Alternatives would be a big help.:) Thanks, Martin

Hi Dman, Thanks very much that clarifies the connections.:D Arnak

Hi Guys, Thanks very much for the info. I'll look at VFD's and capacitors as the motor will not be used for a heavy load. Just out of interest, why is the motor plate listed with all those voltages? Arnak

Hi Folks, I have a 3 phase electric motor that I believe to be dual voltage and I wondered if it could be run on single phase 240v? The wiring is from the bottom of the pic :- Blue, Red, Brown on the input side Black, Red, Yellow on the motor side. The motor is MTB63B14-4 MK110015-S The...

Hi Folks, Oh, ***** , to late to make the shaft to suit I already made it and wondered why it didn't fit.:hDe: Well I suppose to look on the bright side I do now know haw to make a left hand thread....:mad: Arnak

Hi Folks, I think I inadvertently made a left hand internal thread.:wall: I had the lathe turning as normal in the anti-clockwise direction and the carriage set to run from left to right to cut from the inside out. The threading tool was cutting on the inside nearest the operator not upside...