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  1. M

    CNC options?

    Hi kquiggle Decisions are not always made for the right reasons! I have used AutoCad 2012 for many years and I now have the full 2022 version which includes 3D. I also have Fusion 360 and TuroboCad neither of which I have used due to time constraints and the 3D learning curve. I design in 2D...
  2. M

    CNC options?

    I was always told that there are 3 key issues when choosing a mill (be it CNC or manual):- Rigidity, Rigidity, Rigidity! OK, that's a simplification and a lot depends on the application. Router type "mills" lack rigidity and are fine for thin "soft" thin materials but with model making you...
  3. M

    2D design

    Regarding AutoCad. I note that Dave is using AC 2000 and 95. I have AC 98 and 12. AC 12 cannot be re-installed onto a new disk/computer since Autocad no longer support the package and will not provide the install key. I know 98 does not require an install key and I assume 2000 does not. My...
  4. M

    CNC engraving text

    Hi Bazzer Good question - 70mm x 25mm overall which seemed to be the correct scale
  5. M

    CNC engraving text

    I used the same 60deg 0.3mm cutters to make some name plates for my Wyvern. I used 7000rpm which is the highest speed available. I used a depth increment of 0.1mm. This is low but the cutters are fragile! The total depth was 0.6mm in brass sheet 1.5mm thick glued to a AL support sheet...
  6. M

    Kiwi Mk II

    So you retire – in my case at 75 – and rekindle your interest in model engineering. Maybe resurrecting that model you started 10 years ago. It’s all very relaxing and time slips by! Then I have to make the crank shaft for the Kiwi. Seems simple but has taken ages with every operation having the...
  7. M

    Myford S7 Half Nut

    UPDATE - UPDATE Myford S7 Half Nut I can confirm that Myford.co.uk normally stock lead screw half nuts but they are out of stonk until sometime (unspecified) next year due to supply issues (!). The cost is around £60 including tax for the pair. Please note that you are likely to need to...
  8. M

    Myford S7 Half Nut

    Thanks Charles - thats excellent news. I have never been to the Midland show but with the cancellation of the London show (again) I might make the journey up the M1 to the show. Mike
  9. M

    Myford S7 Half Nut

    Charles I agree and was amazed that I couldn't locate it - as you say its the most likely item to wear. I do intend to make more phone calls and will keep you posted. Mike
  10. M

    Myford S7 Half Nut

    Hi Dan I have tried all the on-line outfits including RG Tools with no luck. Unfortunately I have no experience of 3D printing or casting so machining would be my default. I have cut ACME lead screw threads and made my own taps in the past but in this case I would purchase a tap - if I can't...
  11. M

    Myford S7 Half Nut

    After 40 years of owning several Myfords I have just managed to jam the cross slide (via the lead screw cover) against the gearbox. Fortunately I keep the V belt a little loose and the result was that the lathe stopped but the motor didn't stall. I can't see any obvious damage and the gears...
  12. M

    Gamage lathe

    Hi ricuponwye, I have been following the posts and at the start of my modelling I was in a similar position to you. From experience I would do the following:- Refurb the lathe if you can. I say that because I have the impression that you don't have access to other machine tools and although...
  13. M

    DRO recommendation for Mill

    I did the same and used Machine DRO kit. I have both glass scales on my mill and magnetic on my lathe. No issues with the glass scales on the mill and there is ample space to fix them. For the Myford lathe things are different. The bed could accommodate either the larger glass scale or...
  14. M

    DRO recommendation for Mill

    Lloyd Apart from the noisy cowling (which in my version is sheet metal) and the bearing issue I have been trouble free. Take the DRO plunge and rejoice in your "new machine" Get a "proper" DRO with XYZ display. If you need photos of my fix just ask I'll wait for an update.......... Mike
  15. M

    DRO recommendation for Mill

    Lloyd. Go for it! Yes I agree that it is possible to work with backlash - we all did it for many years but to me it is like using a 4 jaw chuck for round material. Yes it does work but what a pain. Go for the XYZ DRO and your life will be transformed. BTW and off subject. Have you needed...
  16. M

    Almost burned my shop down and didn't even know it

    Very interesting discussion. In the UK, residential properties have a single phase supply of 240V. The feed cable in the road is usually 3 phase and houses are connected to one of the phases as a way of balancing the load. Incidents of electrocution in the UK are rare. Electrical consumer...
  17. M

    Almost burned my shop down and didn't even know it

    Umm.... I think I would take issue with Engineeringtech re wire wrap. I agree that it was used for many years in electronic assemblies BUT the tools needed to be calibrated and regularly checked. This resulted in many repair shops soldering the joints. In my view push-in connectors are fine...
  18. M

    Almost burned my shop down and didn't even know it

    Metalmangler. In the UK many fires can be attributed to heaters. You don't give their rating but in my experience you should avoid running 3kW heaters for long periods on a 13A circuit with square pin UK sockets. Keep to 2kW. The issues with 3kW is basically one of inline resistance. Socket...
  19. M

    Wanted Stuart 10v drawing for machining.

    What no workshop!! Must be in the garage. On a more serious point, I have struggled with this site. I really would like a short and simple guide to using the main features but so far haven't found such a document. Of course this thread should be somewhere else.................. Mike
  20. M

    Looking for plans

    Jason I think you are correct. The article is in imperial and Julius's in metric. Agree - lots of brass. So far I haven't worked out how the seal to the rotating head is achieved - needs more investigation. I guess my overall problem is time! I am about half way through a Kiwi having spent...
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