• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.
  • Several Regions have held meetups already, but others are being planned or are evaluating the interest. The Calgary Area Meetup is set for Saturday July 12th at 10am. The signup thread is here! Arbutus has also explored interest in a Fraser Valley meetup but it seems members either missed his thread or had other plans. Let him know if you are interested in a meetup later in the year by posting here! Slowpoke is trying to pull together an Ottawa area meetup later this summer. No date has been selected yet, so let him know if you are interested here! We are not aware of any other meetups being planned this year. If you are interested in doing something in your area, let everyone know and make it happen! Meetups are a great way to make new machining friends and get hands on help in your area. Don’t be shy, sign up and come, or plan your own meetup!

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  1. C

    Cheng Ki Turret Mill

    Geez, missed this post when you put it up! Too many distractions right now (and then). Had a good discussion with Toews Power (Canadian distributor for American Rotary). I vaguely remember a rule of thumb to have motor/converter capacity of 2x the load - so 1 1/2 HP plus the feed and coolant...
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    Cheng Ki Turret Mill

    Here is the reply from one of my electronics/electrical resources (with a lot of VSD experience): "Motors should not be switched on and off with the power side of a VFD, only the control side. The reason is because when switching off, the arc on the switch contacts will backfeed high voltage...
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    Cheng Ki Turret Mill

    dragged it out to farm on a very low trailer frame so IF it comes in at right weight I can turn spreader bar upside down and use 2 shop cranes to pick it onto floor (only 9' under hooks). Wanted to weigh it but the keys to mobile crane were taken out of key drawer to make copies...but got lost...
  4. C

    Cheng Ki Turret Mill

    What is swaying me towards RPC is leaving the current wiring as is. There is one transformer that shares feed with the spindle motor and taps off control voltage and run power for the feed motor and coolant pump. I can easily rewire to accommodate a VFD on spindle circuit, but that means I...
  5. C

    Cheng Ki Turret Mill

    Have also been contemplating rotary phase converter. I had a 5HP for many years but had stopped using it so gave it away. No big tears as it was pretty crude and very unbalanced voltage on one leg.
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    Cheng Ki Turret Mill

    Found the original seller = Akhurst Machine (a chain in the West) and they still bring stuff in from Taiwan. Believe the design and most parts are still produced with dozens of different brand names - but best I can tell they all originated with Cheng Ki. Will hit my top auction budget price...
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    Cheng Ki Turret Mill

    I went to have a peak today and it is indeed R8. I have some R8 tooling around so will get me started. Toronto Builder: Forgot to mention your price range is smack on where I think/hoped it should be.
  8. C

    Cheng Ki Turret Mill

    Everything I have read puts it from Taiwan and if you go back 40 years, China's borders were still closed. All of that early tooling came from Taiwan (I have a lathe and a power feed drill press from same era - and both Taiwanese - the drill a nice tool the lathe...uh...so/so). My concern...
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    Cheng Ki Turret Mill

    Years ago my wife bought a dovetail mill/drill and Marvel 8 saw from a retiring/closing shop so I would have a bit of local history in my shop. Well, loading/working that mill let me know it is really not rigid enough for some operations. So, have been looking at a Cheng Ki 1.5HP turret...
  10. C

    Roboforming

    Similar concept applied with English wheel. tiny area being ormed at any one time, but huge overall change in the sheet. My fondest recollection of sheet metal forming goes back to our days racing speedway bikes and flat track. When we managed to smash up a fuel tank from the inevitable...
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