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Price lowered to $18,000 OBO, and we can throw in a small-but-decent Baileigh Cyclone dust collector to go with it:https://www.baileigh.com/cyclone-dust-collector-dc-600c

FOR SALE - 2014 PRSAlpha 96-60-16 with double-height Z-axis and 4.5 HP HSD spindle.

Includes:
2018 Windows 10 computer for control
Proximity Switches & Z-Zero plate
Depth Touch Probe
Vacuum...

Just another bump, our price is down to $7,500 now OBO. We need this to move so make me an offer LOL! https://sfbay.craigslist.org/eby/tls/d/emeryville-shopbot-prt-standard-g-with/6845460044.html

Just a bump that this awesome Shopbot is still for sale and we're willing to go down to $10K. Here's the new ad:...

Shopbot PRT 96" x 48" x 6" Standard with many upgrades:

2008 4G 'Gecko' controller update from Shopbot with up to 4 IPS / 240 IPM feed rates for cutting (8 IPS / 480 IPM for jog)
Proximity...

Oh wow, just saw this. That's our old setup. As Brady says, it's OK for 3D, and not so hot for everything else.

Since we switched to a spindle we've also switched to a different setup that works...

Looking to upgrade by vac table by using four Lighthouse motors together ala Gary's 'black box'.

Thanks to Gary's posts, I'm really interested in the Lighthouse motors for this. However, I'm think...

3D sculpting software is fun, but you do run into the fact that it's best suited for certain kinds of models.

While the learning curve is a little steep at times, I like Blender for sculpting....

We've been using Amana Tool's polishing flute aluminum cutters, and they work great.

We do roughing passes down to an onion skin 0.005 offset, then a cleanup pass with no offset and full depth. We...

We did something similar, but on the front of our spindle instead of to the side (PRT gantry and no drill head, so...).

We used a 6" round duct however, with a 6" flex hose back to the cyclone....

We cut aluminum all the time since we got our spindle. With the right tooling, we don't even use lubricant or air, we just cut dry and it works great. We've been taking shallow passes of .125" at 1.5...

We've already got a Spindle wired up 3-phase and such. Problem is we're maxed out. I could run an Alpha with two 20-amp 110 plugs, but then we'd still probably be putting in a subpanel to do so.
...

Already got the 4G upgrade & the one-piece PRT-style Y-gantry on the machine.

Good to know that upgrading the motors without upgrading the frame isn't going to give us great results due to the...

Hey everyone! Our machine is five now, and while still in fine shape and working hard, we're looking at maybe making it faster & better this year.

Now, does it even make sense to swap a old PRT 4G...

Didn't notice much of a difference. It's the power supply they put into the PRS, and it was in the later model PRT4G's. Ours was an older PRT, with the older 44v power supply.

The swap wasn't...

Swapped in the newer-style 64v power supply, and we're jogging again at faster speeds. Yay!

We've pushed the old one hard, and it's been hot here, so I'm not surprised that it might have been...

Kenneth, I'm certain it's running smooth and clear, we just redid it.

Looking at adding RAM or maybe getting a whole new computer to put on there instead.

Anything else to look into? We're (of...

Hey everyone. Been having a strange issue with our Jog Speed.

After we upgraded to a 4G controller, we were running our PRT at about 8 Inches per second on the jog, and having a grand time doing...

Hey everyone! Here's a PDF of our talk from the Shopbot Jamboree. Thanks for listening to us, we're honored to be here and try to give back a little to the community that's helped us out a ton.
...

We've been pretty happy with them so far, but like Bob, we haven't done too much with them. They do produce a very clean line, however we've found the more pointed ones to be a touch fragile and have...

Hey everyone. So we're now at three years (god it's hard to believe that!) of semi-regular use on our PRT96.

We've replaced the pinons, and now are wondering about replacing the X rails too....

We had a lot of trouble with our 4G upgrade because of the USB 1.0. Lots of stalling, even sometimes when jogging at pre-4G speeds. Once we updated to a USB 2.0 computer the problems went away, never...

Tyler, look on the Google Model Warehouse, there are some Sketchup models posted their by Shopbot of the different current PRS models. While not a soild model, it's a nice reference to work from....

We just finished making a batch of cabinets using nothing but 1/4" solid carbide compression spirals from Amanda tool. We took two passes, each 3/8" deep, at 3 IPS and it works pretty well on our PRT...

Randall's right. You can also think of it as if you're watching a creek. Things that float by, or things you drop into the creek, are going to take different paths depending on where they enter the...