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10

In industry, an equipment manufacturer hardly ever sells directly to the end user. They supply distributors in bulk at a negotiated price for each shipment of however many units the distributor orders. The price-per-unit varies accordingly, so there's no point in listing it the way you would for retail products. If you only need a single unit of a product, ...


6

The final drive is the planetary gear set and hydraulic motor that move the track. Not digging over it means not operating the arm over that area as it stresses the components unnecessarily - so to avoid this it means positioning the machine correctly before starting work or changing its position during work.


5

I don't know what such a thing is called, but you can easily construct one by putting this relay circuit in-line with the power to the supply: This construct is called a electrically latching relay. When the relay is energized, pins 1 and 3 are connected, which keeps the incoming AC power applied to the relay coil. This keeps the relay on and SW-HOT on as ...


3

If your budget is correct at US $2000, you have very limited choice. You'll either have to opt for a 1000+ mm long caliper, or an antique one, probably used by da Vinci himself. The most expensive Mitutoyo vernier caliper they sell of the standard 150 mm length is less than UK £200. The accuracy is quoted at +/- 0.05 mm. I'm not sure if you can go better ...


3

This report (large PDF warning) on base plate design says that the AISC Steel Design Guide I instructs the use of plate washers fillet welded to the top of the base plate, with the inner diameter of the washer being much closer to the rod diameter, to ensure initial engagement of the rod. Specifically, I found that information in Sections 2.3.2 (pp.8-10), 3....


2

you can use a solenoid mechanism. these are commonly used to actuate door locks in cars with electric locks, meaning that 1) they run on 12VDC (convenient to work with) and 2) a junk yard would be a good place to search for an example you could test. bear in mind that there are two basic types of electric door lock actuators; one uses a solenoid assembly and ...


2

Typically it sounds like you need a positive displacement flow meter as you have a viscous fluid in the process and they are not very suitable to turbine style flow meters. Positive displacement flow meters come in a wide range of fluid viscosity, but there is a series of questions that needs to be answered before you choose the right one. The best thing ...


1

The most versatile brazing setup is oxy/fuel. Here the main hardware is a mixer head with interchangeable nozzle and hoses/regulators for oxygen and fuel. You can use either disposable gas bottles or larger industrial type rental bottles, which is best really depends on how much gas you are likely to use. This sort of setup gives a high flame temperature ...


1

In the UK this is called an NVR (no-volt release) switch they are compulsory in the EU for most static machine tools but not domestic appliances. Typically these are machines with exposed moving parts such as saws, drills, grinders, lathes ect They have an 'on' button (marked I and green) and 'off' button (marked O and red). The on button needs to be ...


1

30ns is too fast for PIC microcontrollers that I know of. For example, the PIC16F77 requires a period of one instruction cycle plus 40ns, so at maximum clock frequency the period must be at least 200+40ns. I would use a 4-bit counter IC (eg 74169, synchronous 4-bit binary up/down counter) which would divide by 16. It's output would be fed into the PIC's ...


1

You don't want to physically interrupt USB data lines. These have controlled impedances, are bi-directional, and differential. These issues makes "switching" the lines difficult. In addition, DC resistance is used as signalling to the host when a device is attached, and what kind of device it is. It is unclear what "turning on and off" the data lines of ...


1

The first picture looks like a top-loading electric kiln: A foundry might use one to bake refractory molds prior to casting. Not sure what the second picture is.


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