• 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 Ontario GTA West area meetup is planned for Saturday April 26th at Greasemonkeys shop in Aylmer Ontario. If you are interested and haven’t signed up yet, click 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!

Search results

  1. JohnW

    Looking for a mini mill!

    It so happens I just had one of those given to me a few weeks ago. I re-furbished it just for fun (it only took a couple of hours), but would be willing to part with it as I am very unlikely to use it, and I already hoard way too much stuff. It has some accessories for milling and sawing, but...
  2. JohnW

    OZ25 collets

    I think the OZ25's are also known as "full grip" or "fullgrip" collets. I have a set of them and a few years ago managed to buy a couple of additional collets from Enco when they still existed.
  3. JohnW

    Wanted: Metal Lathe

    I have been a member at Protospace for quite a while. There are no charges for use of equipment and never has been. The only exception is the Trotec laser cutter where you are limited to a few hours a month of free usage. The Rabbit laser cutter is always free. There are some small charges for...
  4. JohnW

    My 12 x 36 Lathe is for Sale

    I thought it was OK in the classified section for personal transactions i.e. buying / selling / trading hobby items, not running a regular ongoing business. Am I wrong?
  5. JohnW

    iPhone as level

    That is effectively the same unit - it looks identical to mine. I bought mine a few years ago when House of Tools was being liquidated. 70% off or some such thing, I probably paid $40 or so for it. A bad deal so far, since I haven't really used it.
  6. JohnW

    My 12 x 36 Lathe is for Sale

    I've been working on rebuilding a lathe for the last couple of years, and I have finally finished it. I've posted a lot of my progress on a thread here, but I need to update it with some of the latest progress. It is now time to find a good home for my old machine. It is about 10 years old (I...
  7. JohnW

    iPhone as level

    My machinist's level will put the bubble off the scale when you place a sheet of regular paper under one end when it is on a level surface. That is about .003" in 6". I think it can reliably distinguish an out of level of better than .0005" in 6". Taking the arcsine of .0005/6 yields .005...
  8. JohnW

    My "New" Lathe

    OK, so on to low-voltage schematic part 2: I've added the brake switches and the Fwd/Rev switches to this diagram. The 24V signal goes through the NC (normally closed) contacts of both brake switches to feed the F/R switches. If either switch is open (the brake is pressed), the power is...
  9. JohnW

    My "New" Lathe

    Nope. The VFD does not use a neutral line. It strictly connects to the 3 hots in a 3-phase system, or the 2 hots in a spilt phase system. If you are referring to the two lines leading from one contact on the main relay to the VFD, that is somewhat explained in the text. Since it is a 3-phase...
  10. JohnW

    My "New" Lathe

    Now on to the low-voltage schematic. This is a lot more complicated, so I will present it in several stages. Here is the schematic for the VFD enable circuit, and the cooling fan circuit. The VFD is controlled by a 24V circuit that it provides the power for (VFD terminal 11). The VFD cannot...
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