Recent content by shawnpeter

It is possible with a hammer bit. Atlas Copco has been working on a directional hammer. Allis Chalmers did a lot of research on this. Javins made one of the first DDH's, capable of 15 deg/100'. linkedin.com/shawnpeter

Ok. If you know 10000 Acad users, why are you asking us? How much air is in your front passenger tire? I gave you the solution, many posts ago.

check out Dynomation from Motion Software. also, do a search for jason fletcher 5.0, he's got a spreadsheet on his website for calculating all kinds of stuff with engines. bear in mind that VE is not constant, and a lot of cheap simulation/design software bases their horsepower/torque...

they are independent (as stated, to the third). what are the materials, diameters & lengths, etc.

it is possible with peck drilling, but i'd look into edm sinker's getting it done. your best bet of trying to drill it and avoid having 10 scrap parts is to buy 10 scrap drills and use high speed, low-low-low feed.

perhaps the big end is the small end and the small end is the big end

not an ANSI standard, but either way: -under drawing resources, expand the "borders" folder, right click and define a new zone border -pick how many numbers/letters, etc -edit them for each sheet. it's not a standard because it's not a standard.

looks like it is off an old pump jack, but not a lufkin.

I'm scrambling to search for any notes, but I do know we have nitrided 8620 on tool joints with success. As far as getting rid of the black finish, wheelabrating the parts afterward (trial & error on which mesh to use) will clean them up nicely.

I need to prototype something and I can't find 8" barstock of delrin (polyoxymeth..). Is there something else anyone can recommend?

is there a "rough" percentage of how much torque is lost when using a swivel socket versus a standard socket?

if it's purely aesthetics just go to Autozone and buy some of that Dupont anodizing paint in a spray can. You can anodize your self, and there are plenty of websites that sell the chemicals, tanks, power supplies, etc.

Yeah I never have had a problem with PDF's. Check iTunesU (university) for a lot of engineering lectures. Also search for podcasts about engineering in iTunes.

and BTW, an iPhone will not help you "Improve Myself to Get Ahead in My Work"... If anything, it has seriously hindered my productivity from 3pm onward. I then made the dumb choice of forwarding my work cell to my iPhone so I'd have an excuse to keep it on me all day long. One of our salesmen...

- Matrin sprocket, pretty good app with formalae, etc. - mecalQ, calcs, etc. - ThomasNet, good news, links - Drawvis Free, cad app - Measures Lite, interesting app for sending people pics and dimensioning them - ResistorCC, color code resistor app - Engineering News, pretty obvious -Pi...