CraigC
  • Member for 4 years, 4 months
  • Last seen more than 1 year ago
3 answers
2 votes
1k views
What components are needed to reverse the direction of a belt conveyor using one reversible motor, and how do they change the tension on the belt?
2 votes

There would be a few ways of doing it, but one the simplest i've seen is having a seperate drive roller and idlers somewhere on the underside of the conveyor. These idlers can be moved for tensioning ...

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1 answers
1 votes
66 views
Thermistor - Steinhart-Hart Coefficients
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2 votes

It depends to some extent. Normally you'd assume you should look at the datasheet, see what it's operating limits are and then use the centre point for your 3 points. If the thermistor is not entirely ...

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1 answers
2 votes
359 views
MSP430 - Semaphore - C language
1 votes

I can only see that you've programmed the switch to "if high - do one thing, if low - do something else". You need to include a counter for the switch (and debounce). then 4 if statements, one for ...

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2 answers
1 votes
55 views
Type of electronic lock for a garage door?
1 votes

You could consider using a motor/servo set-up. These would only use power when they're actually opening/closing the lock. For a small lock there's plenty of servo controlled units (from looking mostly ...

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1 answers
0 votes
428 views
how can I improve my chain-drive lifting system?
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1 votes

A very common method for shaft alignment is by using shims and a DTI (dial test indicator). Having a solid bed plate for the bearing housings is a must-have. Depending on the load, the aluminium ...

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3 answers
0 votes
42 views
Copper recycling process
1 votes

There are quite a few ways I've seen this happen. The lowest tech way (and least environmentally friendly) is burning the insulation off like they do in 3rd world countries, up to slicing/crushing the ...

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1 answers
1 votes
83 views
Implementing logic expression and the truth table of logic function
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Question D refers to the fact you can use NAND gates in different combinations to replicate different types of gates. IE to replicate a NOT gate, simply tie the 2 inputs of the NAND gate together, and ...

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2 answers
1 votes
86 views
How do I get data from my Hardware to server or so?
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Just as Mahendra says, in terms of hardware you'll need your sensors connected to something such as an arduino or raspberry pi and have an internet connection. If using a pi you have both wired/...

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1 answers
0 votes
104 views
Automated valve for testing module
0 votes

Interesting problem. The box is under vacuum, so thankfully that works in your favour when you're transporting it in atmosphere as the air will push down on any seals, helping to keep it closed. This ...

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4 answers
2 votes
451 views
How to Measure Air Flow in a Large Tunnel at Various Different Points?
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I can't give you a black and white answer to this without seeing it but a fair bet would be using ultrasonic sensors. These systems work by having pairs of ultrasonic transducers placed on the outside ...

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5 answers
2 votes
170 views
What is proper name of shaped shaft ends for ensuring their mutual position?
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I've always known this to be classed as a 'locating pin' or simply 'location' or even 'mating'. It also depends on the type of fit you are trying to achieve, whether it is an interferance, clearance ...

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4 answers
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220 views
How to quickly equalize pressure in a low pressure container?
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I'm assuming you mean the air pump is connected to the sealed bucket seperately from the tube you use to suck water into the bucket? if so, maybe just glueing a rubber disc infront of the tube sucking ...

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