Hi Guys,
Just getting my new G4B together.
The previous owner was using the faceplate backwards as an arbor nut, with a bored-out center-hole blade.
To get the blade in the right place for that arrangement, it seems like he
shifted the whole arbor sideways in the bearing/arbor assembly.
Based on the pictures I've seen, there's normally a pretty small distance between the casting and the faceplate receiver.
On this new saw I have, this distance is well over an inch.
I'd like to use this saw with a 3-hole blade as originally intended.
How do I go about shifting the arbor back to its original position?
I'm guessing I have to pull the pulley out and adjust the spanner nuts
to shift the whole thing over. Anything I'm missing here?
The pulley is also seized on pretty badly.
Thanks in advance! What a great resource this forum is...
Cheers,
Martin
Adjusting arbor/blade clearance
Moderator: crzypete
-
keithguitars
- Posts: 4
- Joined: Tue Feb 15, 2011 3:22 pm
- Location: Upstate NY
- Contact:
-
keithguitars
- Posts: 4
- Joined: Tue Feb 15, 2011 3:22 pm
- Location: Upstate NY
- Contact:
Update
OK - went through the OWWM article and answered my own questions.
Had to shift the bearing set over about 3/4", but it's all together again and working great!
BTW, I ended up using a VFD (Teco brand) to run this on my single-phase power. It works great and allows variable speed, which I've already used to cut some thin aluminum stock for a switch mounting plate.
The VFD also allows an external switch, so you can turn the machine on and off with just a single switch - just as easy as a 1ph motor, but with extra fun thanks to the vari-speed.
At $140, the VFD is cheap and quite handy.
It also permits control over acceleration and deceleration on machine start and stop, and lots of other little details.
CHeers!
Martin
Had to shift the bearing set over about 3/4", but it's all together again and working great!
BTW, I ended up using a VFD (Teco brand) to run this on my single-phase power. It works great and allows variable speed, which I've already used to cut some thin aluminum stock for a switch mounting plate.
The VFD also allows an external switch, so you can turn the machine on and off with just a single switch - just as easy as a 1ph motor, but with extra fun thanks to the vari-speed.
At $140, the VFD is cheap and quite handy.
It also permits control over acceleration and deceleration on machine start and stop, and lots of other little details.
CHeers!
Martin
-
woodworker
- Posts: 8
- Joined: Sun Nov 18, 2007 10:42 pm
- Location: Central Kansas
- Contact:
Vfd
Keith,
I have a couple of Hammonds and I have always switched out the 3 phase motors for single phase motors (no big deal), but have heard others using a VFD system. Could you educate me about them--what it is, why use them, advantages, etc,?
Thanks in advance
I have a couple of Hammonds and I have always switched out the 3 phase motors for single phase motors (no big deal), but have heard others using a VFD system. Could you educate me about them--what it is, why use them, advantages, etc,?
Thanks in advance
-
keithguitars
- Posts: 4
- Joined: Tue Feb 15, 2011 3:22 pm
- Location: Upstate NY
- Contact:
Hi,
I know crzypete has different feelings on this, but I went ahead with the VFD anyway.
The primary use is the built-in phase conversion, with a much higher efficiency than the older static converters.
Beyond that, the biggest immediate benefit is that most VFDs will allow you to vary the frequency of the output power, which means variable spindle speed. If you're using your saw to cut thin aluminum or plastic, this can be quite useful - turning down the speed will be very helpful with cutting acrylic, for example, since it will minimize melting.
Getting into the little details, you can also control things like start-up speed (ramp-up to target speed) and shutdown deceleration, with the VFD actually controlling the motor until it is back to stationary.
Finally, it's comparable to or cheaper than a new 1ph motor (I paid $140 shipped for mine, a Teco FM50, bought at dealerselectric.com, which I highly recommend).
The original motor stays in place and the machine stays basically stock.
I mounted mine in place of the little vent panel on the left side of the column, and ran a remote on/off switch up to the standard location.
Works great and still turns on and off like a simple machine.
It's definitely worth considering as an option if you're trying to use a 3ph machine with a 1ph supply. I'm quite pleased with the results so far.
Cheers!
Martin
I know crzypete has different feelings on this, but I went ahead with the VFD anyway.
The primary use is the built-in phase conversion, with a much higher efficiency than the older static converters.
Beyond that, the biggest immediate benefit is that most VFDs will allow you to vary the frequency of the output power, which means variable spindle speed. If you're using your saw to cut thin aluminum or plastic, this can be quite useful - turning down the speed will be very helpful with cutting acrylic, for example, since it will minimize melting.
Getting into the little details, you can also control things like start-up speed (ramp-up to target speed) and shutdown deceleration, with the VFD actually controlling the motor until it is back to stationary.
Finally, it's comparable to or cheaper than a new 1ph motor (I paid $140 shipped for mine, a Teco FM50, bought at dealerselectric.com, which I highly recommend).
The original motor stays in place and the machine stays basically stock.
I mounted mine in place of the little vent panel on the left side of the column, and ran a remote on/off switch up to the standard location.
Works great and still turns on and off like a simple machine.
It's definitely worth considering as an option if you're trying to use a 3ph machine with a 1ph supply. I'm quite pleased with the results so far.
Cheers!
Martin
Hi Keith,
My vote against VFD's could be swayed. My experience is limited, I have one to control the variable speed of the conveyer on my timesaver. I have not fully delved into the great versatility of the programming so I guess I would love to see pictures of your set-up and hear answers to a couple of questions.
1- start up speed- My timesavers conveyer does not come up to speed instantly, this would drive me crazy on a hammond where I can walk up to it, turn it on, make a cut and turn it off again in an instant. If I waited too long for it to come to speed, I would be annoyed.
2 switch, I don't want to play on those keyboard keys in order to start and stop. I am very curious to see how you wired this.
That's it, my main objections.
Pete
My vote against VFD's could be swayed. My experience is limited, I have one to control the variable speed of the conveyer on my timesaver. I have not fully delved into the great versatility of the programming so I guess I would love to see pictures of your set-up and hear answers to a couple of questions.
1- start up speed- My timesavers conveyer does not come up to speed instantly, this would drive me crazy on a hammond where I can walk up to it, turn it on, make a cut and turn it off again in an instant. If I waited too long for it to come to speed, I would be annoyed.
2 switch, I don't want to play on those keyboard keys in order to start and stop. I am very curious to see how you wired this.
That's it, my main objections.
Pete