Re: machinist price gouging

russg /
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Machine/welding shops don't want to mess with itty bitty one off jobs, unless the customer is willing to pay. It was common for us to over quote/bid just in case of the job being a real bitch (You know, Murphy. Shit happens). Snap a tap off in a hole and your $100 job, including profit, just ended up costing the shop $200. Drills and taps are much harder to remove than any stud.

However, drilling and tapping is not hard. You just need to be careful. Make sure the tap is in line with the hole. That may seem like a real Duh, but most of the taps I have seen that have broken are because the tap got into a bind due to misalignment. They're hard, but quite brittle.

When you are tapping and the tap is advancing you need to stop and back out the tap 360 degrees to break the chip. Do this about every 2-3 turns and back out completely to clean the flutes of the tap of any chips. Keep doing this until you reach the bottom. It may seem to be more time consuming, but it's necessary if you want to prevent tap breakage.

Also, no cutting fluid is necessary for cast iron. An air hose is nice, but cast iron chips are nasty black. Picture grinding up pencil lead and then blowing it all over the place.

For Aluminum you really need fluid for Aluminum. Alumicut comes to mind.

Steel, general cutting fluid. Motor oil will work, but it's not ideal and can be rather funky if using a power drill or press. But, then again, most cutting fluids are pretty nasty. The place with "The wealthy Hardware Man" will have it.

Sorry about rambling on. I was a machinist/welder in my previous life and figured a few tips might be helpful.

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Subject Written By Posted
  machinist price gougingTopic by: Ja'Far Rogers Ja'Far Rogers 05/30/08 04:03PM
  Re: machinist price gougingRe: Bort Hoff Bort Hoff 05/30/08 04:05PM
  Re: machinist price gougingRe: Ja'Far Rogers Ja'Far Rogers 05/30/08 04:08PM
  Re: machinist price gougingRe: Moped Jay Moped Jay 05/30/08 07:48PM
  Re: machinist price gougingRe: Chris Rice Chris Rice 05/30/08 04:10PM
  Re: machinist price gougingRe: Crackstar X Crackstar X 05/30/08 04:13PM
  machinist price gougingRe: brystheguy brystheguy 05/30/08 04:10PM
  Re: machinist price gougingRe: Zachary Evans, Destroyer of Worlds Zachary Evans, Destroyer of Worlds 05/30/08 04:13PM
  Re: machinist price gougingRe: Zachary Evans, Destroyer of Worlds Zachary Evans, Destroyer of Worlds 05/30/08 04:14PM
  Re: machinist price gougingRe: Ja'Far Rogers Ja'Far Rogers 05/30/08 04:30PM
  Re: machinist price gougingRe: andrewhed andrewhed 05/30/08 04:55PM
  Price gougingRe: Elwood P. Dowd Elwood P. Dowd 05/30/08 05:14PM
  Re: Price gougingRe: Moped Jay Moped Jay 05/30/08 07:43PM
  Re: Price gougingRe: Elwood P. Dowd Elwood P. Dowd 05/30/08 08:46PM
  Re: Price gougingRe: Moped Jay Moped Jay 05/30/08 11:43PM
  Re: Price gougingRe: JunkyardDog JunkyardDog 05/30/08 08:07PM
  Re: Price gougingRe: Aaron(Zeo) Aaron(Zeo) 05/30/08 05:26PM
  Re: machinist price gougingRe: buckswilde buckswilde 05/30/08 05:30PM
  Re: machinist price gougingRe: Zeke Zeke 05/30/08 10:18PM
  Re: machinist price gougingRe: russg russg 05/30/08 11:11PM
  Re: machinist price gougingRe: Brandon Brandon 05/31/08 12:54AM
  Re: machinist price gougingRe: Edward Richardson Edward Richardson 05/31/08 02:37AM
  Re: machinist price gougingRe: Greg Greg 05/31/08 02:42AM
  Re: machinist price gougingRe: russg russg 05/31/08 09:22AM
  Re: machinist price gougingRe: Ja'Far Rogers Ja'Far Rogers 05/31/08 11:36AM
  Re: machinist price gougingRe: Scott Maslowski Scott Maslowski 05/31/08 12:26PM
  Re: machinist price gougingRe: cindy cindy 05/31/08 01:26PM
  Re: machinist price gougingRe: Greg Greg 05/31/08 02:00PM
  Re: machinist price gougingRe: maciek maciek 05/31/08 04:11PM
  Re: machinist price gougingRe: keller_stephen keller_stephen 05/31/08 04:48PM
  Re: machinist price gougingRe: Ratty! Ratty! 05/31/08 05:08PM
  Re: machinist price gougingRe: Ja'Far Rogers Ja'Far Rogers 05/31/08 05:47PM
  Re: machinist price gougingRe: Leo Heyman Leo Heyman 05/31/08 09:34PM
  Re: machinist price gougingRe: J. Constantinos J. Constantinos 06/02/08 11:33AM

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