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Just a newbie myself but it looks like to me the steppers are way to small to expect any good movement.

Actually you are looking at the wrong forumn for help with holes in glass. Check some of the aquarium formuns; Simplydiscus.com is good place to start in the Do It Yourself section. Drilling large...

Should be able to judge how hard it is (alum or inconel, etc) by a trial cut with a hacksaw!

Know everyone wants to help fellow metal workers but really should let temp128 say what he is making!!! Don't put words in his mouth like thermite.

Aluminum powder can also make some heavy duty...

I am a retired chemical engineer which is good and bad. Learned a lot but can't remember most of it!!! But don't think it is possible to get aluminum powder from grinding, milling etc., concern is...

For your consideration: I too am a newbie! Depends on your background but suggest you tackel the part you are less comfortable with first. I am very good mechanically and in the past would have done...

Reading all these answers is starting to make me feel old!! But in the words of a 61 yr old retiree; Why is there any question and what kind of upbringing did these people have that are saying "keep...

After expediting order for many years their reply reminds me of the old saying the check is in the mail. Old plant remedy is to ask for the shipping number and name of the ship transporting the...

Anyone have any experience, links, etc to using a AC/DC welder for an arc furnace; two carbon electrodes inside a crucible???

I would probably still be hand polishing high points on the mold!!!

My local Lowes Home Improvement has one in their router bit section.

Would a drill stop work?

http://gallery.bcentral.com/GID4308581P3401121-DRILL-BITS/Drill-Stops.aspx

Faceless,

To help others understand your level of knowledge, etc might help to know your experience level? Feel from your comments, webpage etc that you are VERY young, soph high school???

Should have been more clear, was talking about contact through email. They ask on their home page to not call, but email.

Have you contacted the Inkexpress people? Since they sell the machine seems like they could answer your question.

Not famaliar with this spindle, do you have a link?

Don't the bearings on a turbine require pressurized oil feed??

Need to clarify your problem. I'm just a newbie but know a lot of the problems getting answers here is how the question is phrased. You have mentioned axis and spindle in your problem; two entirely...

Just a newbie myself but the 4.6 amps rule out most DIY drivers.

Drill sizes: 9/32 13/64

Have the same question myself, don't consider Gecko a DIY driver?

Saw them at my local Lowes!

Tks guys,

That was just the information needed!!!

Just got some used capacitors from ebay, 33,000 uF. How can I test them to make sure they are good, they are out side my fluke range??

Konstantin,

Did you ever get an answer on enable. I have also been trying to get the same answer and still don't understand.

aggie

I had heard that you could use a burning candle, held under the mold it will leave a carbon coating.

Website for Houston Metal Shop Club:

http://www.homemetalshopclub.org/index.html

Great bunch of guys into machine work, CNC, casting, etc.

Appreciate everyones help. Problem with a Babington burner is it requires a pump and the fabrication of a sphere, etc. The one I had seen just had an elevated tank (3-4 ft) with copper tubing going...

Add my little bit of knowledge. In years past my compamy bought some stand series motors from Canada which were 50 cycle, ran good, just at a different speed from name plate.

Isn't this the same principle as a standard automoble rotary Air Conditioning compressor with less pistons? Not knocking the concept, it works very well. Auto AC by itself is not feasible for air...