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Mathematical Emergency
  • Member for 6 years, 9 months
  • Last seen more than a month ago
6 votes
2 answers
818 views

How can I finish a round hole so it has 90 degree corners (flat bottom)?

5 votes
1 answer
146 views

What's the smallest pin-like hole I can machine into a piece of tungsten using a metal lathe and common carbide tools?

4 votes
1 answer
517 views

What is the accuracy of direct metal laser sintering (DMLS)?

4 votes
1 answer
195 views

How small can you get a stream of molten steel to be at low pressure?

4 votes
7 answers
6k views

How can I cheaply drill a 0.1 mm hole in a small piece of tungsten?

4 votes
2 answers
421 views

What diameter hole will a twist drill bit of a given size actually make in a piece of metal?

2 votes
1 answer
2k views

What is the highest-temp castable refractory cement available?

2 votes
2 answers
157 views

Identifying affordable alternatives for low-frequency high-current DC-DC solid state relays

2 votes
1 answer
273 views

What's the most cost-effective cutter bit material that can be used to machine aluminum oxide?

0 votes
0 answers
10 views

For a given a molten metal (say copper), how do you determine the best material for a 3D printer flatbed? What about circuit board?

-1 votes
1 answer
148 views

What chuck arbor do I need for a Jacob's JT #33 chuck and G0768 grizzly lathe?