I have 10 yards of sand/salt mix delivered at a time, I put down a large white tarp (colour probably isn't too important) before it's dumped. I have the driver dump it on the tarp, then fold the tarp over the pile. The tarp is large enough that I have two layers of tarp covering the pile. I...
With exposed fastener roof, a single layer of insulation is basically a noise reducer and the vapour barrier helps with condensation.
Note his response, "not good". R19 with exposed fasteners and no thermal break works out to R10 (R = 1/U).
If you are only going to occasionally heat/cool...
The other thing to consider with the Chinese lights is that they are unlikely to be uL/CSA certified. I'm continually amazed at what Amazon is able to get away with, with respect to supplying unlisted electrical equipment. While the ad claims it is uL certified, they do not list a number...
In the video below there's a bit about the VFD used for the 15hp spindle on the robot, as well as Phase Perfect 20hp digital phase converter... all run off a 100 amp circuit
currently working on figuring out to integrate a PLC or command the VFD directly from the robot I/O. For now I...
Glad someone found the video interesting! I'll try to post back here what I'm able to achieve. Saw is under a few feet of snow right now so I'll have to wait until spring.
The braking is all done within about 3 seconds. Go to 4:20, 70hz (approx 2100 motor rpm). When you hear the switch click (4:26), the wheel goes from 330rpm to about 30 rpm in about 3 seconds, the wheel only turns another 3.5 more times before stopping. I'm not quite sure why the braking...
Is it? Seems rather weak. 20 seconds to stop that wheel seems long. Not arguing, just curious. I admit to have limited experience, but I'm able to stop my 5' wheels in seconds. I figured most VFDs should be able to brake a load rather quick.
If you're bored, here's a video that shows the...
Hi,
Here's mine. 2 axis CNC machine for cutting stone. I converted it to CNC. VFD's are used for the main spindle motor, and both axis motors.
When I got the machine it was in a shop with 3 phase power. The Y axis was manual and used a simple timer that pulsed the motor on for 1 second...
I'm leaning towards the aluminum. The shipping cost on the cast iron fabricator set is $185.00 USD to me here in Ottawa Canada (BTW the website currently calculates the wrong shipping fees for the cast iron stuff to Canada, website says $485 in shipping!). That's puts the set to close to...
To the people who purchased the cast iron sets, any regret that you didn't get the aluminum instead? I'm thinking the weight might make them a bit cumbersome to use vs the aluminum.
Thanks.
I haven't looked at the user manual for the FM50, but if the tag says:
INPUT :AC 1 or 3PH 200-240V 50/60Hz 19/11A
It means when using single phase input the amp draw is 19A. If using 3 phase it is 11A.
Most user manuals for VFD's that I've read usually have a chart that has the fuse size...