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  • 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!

Sourcing Replacement Parts

I just removed the motor pulley from my (very similar mill-drill). The pulley really did not want to come off. I heated the pulley with a propane torch to probably around 100C. It still needed a puller, but it slit off quite easily at that point. So my pulley had a very slight interference fit.

Why am I doing that? I'm looking at replacing the single phase 2Hp motor with a 3HP 3-phase motor and VFD that I have.

I am going to end up doing very much like what is being suggested that the TheLocalDunk do. The current motor and pulley have a 24mm shaft with a 6mm keyway. My "new" motor is a 7/8" shaft with a 3/16" keyway. I'm going to machine out the pulley a bit, then make an aluminum insert with a 3/16" keyway slot (that I will probably shrink fit with heat) into the now larger pulley hole, then re-install it. The set screws will the be drilled and threaded through the insert and provide the equivalent of locating pins.

It seems a 0.0010 to 0.0005" interference fit for the modified pulley on the motor shaft will be my target dimension. A little bit of heat will be required to install or remove it, but it won't wobble, and shouldn't come loose like that.
 
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