Questions tagged [tools]

58 questions
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What prevents using a toothed blade with a cutoff saw designed for abrasive discs?

I have an abrasive cutoff saw that I use to cut metal, it runs at 3800RPM. You cannot cut aluminum with these saws, so I bought a carbide blade rated for 3800RPM. I went to install it, but after looking in the manual I don't think it is such a good…
Voltage Spike
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3D Representation of Magnetic Field Lines

There are several tools available for monitoring electrical metrics (voltage, current, resistance, frequency). I have recently acquired all that I need for these studies. What tools are available for monitoring magnetic metrics (force, flux,…
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2 answers

Can we build a tool that measure curvature on an arc?

I know some biologist that are taking curvature measurements on photos with softwares to understand the variation on beak morphology. I'm wondering if there is a way to build a mechanical tool (or if one exist already) to measure the curvature of a…
M. Beausoleil
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3
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What's this tool?

This isn't mine, but I own one of these and I have no idea what it is. With the spike attached it looks like a marking gauge of some sort.
3
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Unit of "cN.m" used on torque wrench

I'm using a torque wrench whose unit is cN.m. I wonder what unit this is, and how to convert N.m (Newton meter) to cN.m.
user33290
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How to read micrometer?

I am just posting here to verify that I am properly using a tool that is new to me, a micrometer. Here is what the precision label specifies, basically that it can measure up to an inch and down to 1/1000" (a notch on the round scale). I would like…
amphibient
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What is the advantage of using a four-sided crimper vs. pliers?

I'm trying to crimp some pins onto 20 AWG wire. I can either use a tool like this: Or I can just use pliers, which are obviously cheaper and more readily available. Why should I use the more expensive tool?
Stephen Collings
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Making precise, intricate measurements

What's the best way to precisely measure intricate mechanical parts? For example, notice the tiny differences between the pitch in these two threads, and the tiny variations in external width of the cylinder: I've been using a micrometer and a…
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How do you use an angle gauge?

I've come across this:- from https://www.amazon.co.uk/dp/B08WXFDRBX/. It says it's is for woodworking, but the vernier is marked into 2' segments. That seems a little too accurate for wood, and of course the description could very well be wrong. I…
Paul Uszak
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designing a drill jig for manufacturing a finished product

what will be suitable drill jig for the given product? since the drill is not straight. so i'm not sure for the suitable design, kindly looking for kind help. thanks in advance! if it would have conventional product for drilling three holes, i would…
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Designing a progressive die to make a blank on a thick steel sheet

Suggest and Design a progressive die to make a blank with a 2 mm thick steel sheet as shown in Fig. The ultimate shear strength of the material is 480 MPa. Calculate press capacity assuming 75% efficiency. Like I know if we have to design a…
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Did I buy the wrong SBR rails? They don't seem to attach or align

I have bought some SBR12 rails and bearing blocks in an attempt to make a fancy flatenning jig for my router. I haven't been able to see 100% everything that other people have done on the YouTubes due to camera angles etc, but I went ahead and…
physicsboy
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How to make holes in granite without electrical or iron tools?

I see granite blocks in ancient Egyptian temples with perfect holes drilled into them. The historians say at that time (2500BC) they did not possess iron tools or the wheel and certainly no electricity. The most capable metal tool was made of…
Samid
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Adjustable screw positioning

I'm looking for the name of part which I'm pretty sure exists. It works similar to how the seat on a exercise weight machine works. It's a plastic band which has a bunch of connected figure 8s cut out. Which will allow you to adjust the position…
johnny 5
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Trying to find this exact type of T Ruler?

I am trying to find the exact tool which i assume is a modified t ruler to purchase but i cannot see any exactly like it. Any help would be appreciated: Picture attached: It is adjustable and has a fixed right angle piece on top so it is square…
Student
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