Working On A New "Timber Frame" Design and Build.

[LorenBMS]

The tie plates with the epoxy shims

[LorenBMS]

Electrical components are beginning to arrive.

One of the motors. Really nice hardware!

The G-Penny spindle arrived. It was packaged really well and was quick shipping. Fits like a glove on the spindle mount I cut.

[LorenBMS]

An excellent friend of mine donated the electrical enclosure to the project!! I will have plenty of space in this monster.

[LorenBMS]

The devil is always in the details. I have the motors and drives installed for X & Y. Trays to support the drag chain and the chains installed. Waiting on an Oldham coupler to arrive for the Z so I can install the motor for it. Have proximity sensors installed and cables for them and the motors pulled through the drag chain. Slowing getting through the details for the electrical build.

[routalot]

The engine turned finish is quite spectacular.

[LorenBMS]

The engine turned finish is quite spectacular.

Thanks! I am glad I spent the extra time doing them to add a little polish to the machine.

Drill and tap arrived for the 1/2-20 thread in the air cylinder rod mount, so I got the mount made and installed the air cylinder and the mount block.

[luke peter]

Your progress has been awesome Loren, really great fabrication and so many good design decisions. If you don't mind sharing, what does the pneumatic loop look like for your z relief? are you using an accumulator to hold pressure and trading off the relatively small volume change during cylinder stroke, or is it going to be venting on the down stroke?

Looking forward to seeing it moving

[LorenBMS]

Thanks Luke! I am looking forward to seeing it move too. For the air cylinder counter balance I will regulate shop air to probably a 5 gallon tank, and then to the retract side of the air cylinder. It will be 15-25 psi. I haven't run the final numbers yet. Then exhaust the extend side of the air cylinder to atmosphere. That should make for a pretty nice air spring.

[LorenBMS]

Working on getting the electrical layout done. I think I have the last few hardware pieces arriving this week.

The photo is a draft of the panel layout. I have 220v single phase entering on the lower left to terminal blocks from a main power disconnect switch.

Controlling power to the large 72V power supply and VFD via relays being switched by the E-Stop switch. This way I can drop power from the spindle and motors, but the 5V and 24V logic power supplies will still be powered if the E-stop is hit.

Fuses to the 72V PS, VFD, and power to the motors. Also a breaker at the main power panel for the shop.

I will have more wire raceway in place, just not shown in the photo.

Thoughts? What am I missing?

[peteeng]

Hi Loren - I think it needs more yellow Peter

[LorenBMS]

Oh yes! The yellow wires, how could I forget those? Back to the store for another Sharpie...lol

[LorenBMS]

Working on getting the electrical panel built and wired.

[LorenBMS]

Still working on getting the electrical installed.

[LorenBMS]

Getting closer on the electrical build. The VFD now connected to the spindle and power in the panel. I still need to wire logic control to the VFD. E-Stop is installed and circuit completed. I did decide to install a second E-stop switch, so it is on order, but wire is run for it so will be a quick install. Labeled all the business ends of control wires and tied down all those wires. I have cable glands installed in the enclosure and ready to start landing all the control wiring for the motors and prox switches in the enclosure on the motion controller and power supplies.

[peteeng]

Looking Grand Loren - But where's the yellow? Peter

[LorenBMS]

Yellow for what?

[peteeng]

Just joking Yellow makes it go faster. Peter

[LorenBMS]

Well yes, it does, and yellow crimp terminals are like electrical turbochargers. Way fast than yellow wire.

[LorenBMS]

Making headway! Axes all homing, all calibrated, gantry squared, motor tuned for now. (running them a little soft with the machine still up on the rolling casters and not on the solid feet. I have a lot more gray hair and my patience for electrical stuff is worn thin!

[peteeng]

Hey Loren - That's fantastic. Your lucky you have grey hair I have no hair! At least on my head Peter