- Joined
- Dec 26, 2015
- Messages
- 2,079
Thanks.
It isn't stupid at all. In fact, a genuine RF-45 is even rated for drilling up to 1.5" diameter in mild steel. This is with a 1-1.5 HP motor.
My test puts RPM's at about 100, which is in the vicinity of where we believe the 833TV to be weak. It is a perfectly reasonable test. I have drilled dozens of 11/16" holes on my PM25-MV in low range into 316 and Grade 5 titanium 1.5" deep. This is with a pilot hole big enough to clear the larger drill chisel/web. No issues at all, asking a knee mill to do a little more isn't so much of a leap. This was before I had a lathe in the home shop, obviously now it is much faster to drill the same hole on a 2HP PM1236.
OK, maybe I shouldn't have said 'stupid'. I'm just of the opinion that if I'm having to drill holes that large (I don't), then I'd own a much beefier machine to keep stresses on the machine lower. But to each their own.
And comparing a low-speed geared drill press to a 833TV? Really? Seems apples to oranges to me, but whatever.
Before you make a decision, don't discount the larger more advanced benchtop mills with their factory supplied base. READ the attached before you decide on a PM-935. If you'd like more information, let me know.
Looks like you read the first draft, which I've now updated with fresh and accurate data with respect to the PM-833TV. Here is the link to the new document if you're considering that specific model. Click here.Thanks, that’s a good read, and informative.