Posted: 6/3/2014 9:18:45 AM EDT
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I just started working at a machine shop and wanted to see what are a good brand.
At my old job they had brown and shape but I don't have the money to fork out for them at this time. |
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Quoted:
I just started working at a machine shop and wanted to see what are a good brand. At my old job they had brown and shape but I don't have the money to fork out for them at this time. Brown & Sharpe. Top of the line still available, along with Chinese imports. I have an old 24 inch vernier vertical layout gauge. As good as new after well over 50 years. I did sell off a 48 inch glass scale vernier gauge (ground gauge lines on both sides) for a huge profit. I still have a handful of B&S micrometers from 1 inch up to 6 inches. 0.0001. yep, 1/10,000th. There is also a 2 inch 10/1,000,000 (ten millionths). Even with all the springs and stuff it is a PITA to get repeatable readings. It has a system with a dial indicator setup on the 'fixed' anvil. General machining tolerances only need 1/1,000 tooling and the tolerances are usually held to well larger than that. Bearing fitting is one of the few things that can require tighter machining. In non-production environment it is not hard. In a production environment center-less grinding is the usual answer. The other solution is how bearing shells on crankshafts are done. A crankshaft is checked against the block it will be paired with using plastigauge on each bearing. The correct thickness shell is then picked bearing by bearing. For large tools Cincinnati Milacron used to be the big manufacturer for center-less grinding equipment, and it was always painfully expensive. Bridgeport for milling machines. Clausing for metal lathes. Old gently used small tools are often a bargain. If you want stationary tools get ready for a lot of work, or get Taiwanese stuff. It is often a PITA to use daily, but suitable for non-production use. |
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^ what in the ham sandwich is that about?
Are you working in inch or metric? Digital calipers, these are well worth the money. fast accurate and waterproof. Im not sure how they rank but I ended up with a few peacock travel indicators, a besttest test indicator, B&S micrometers (i was asking around to see if anyone had tools they wanted to sell, a guy had 1-4 set of outside mics and a 1-6" depth mic in english but we worked in a metric shop) I dont have any problems with mitutoyo a lot of it is made in USA, I have some SPI stuff too. Alot of places will front you the money and take it out of your check pre tax. ask your boss about it (it saves him money if you work faster) |
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Quoted:
Brown & Sharpe. Top of the line still available, along with Chinese imports. I have an old 24 inch vernier vertical layout gauge. As good as new after well over 50 years. I did sell off a 48 inch glass scale vernier gauge (ground gauge lines on both sides) for a huge profit. I still have a handful of B&S micrometers from 1 inch up to 6 inches. 0.0001. yep, 1/10,000th. There is also a 2 inch 10/1,000,000 (ten millionths). Even with all the springs and stuff it is a PITA to get repeatable readings. It has a system with a dial indicator setup on the 'fixed' anvil. General machining tolerances only need 1/1,000 tooling and the tolerances are usually held to well larger than that. Bearing fitting is one of the few things that can require tighter machining. In non-production environment it is not hard. In a production environment center-less grinding is the usual answer. The other solution is how bearing shells on crankshafts are done. A crankshaft is checked against the block it will be paired with using plastigauge on each bearing. The correct thickness shell is then picked bearing by bearing. For large tools Cincinnati Milacron used to be the big manufacturer for center-less grinding equipment, and it was always painfully expensive. Bridgeport for milling machines. Clausing for metal lathes. Old gently used small tools are often a bargain. If you want stationary tools get ready for a lot of work, or get Taiwanese stuff. It is often a PITA to use daily, but suitable for non-production use. Quoted:
Quoted:
I just started working at a machine shop and wanted to see what are a good brand. At my old job they had brown and shape but I don't have the money to fork out for them at this time. Brown & Sharpe. Top of the line still available, along with Chinese imports. I have an old 24 inch vernier vertical layout gauge. As good as new after well over 50 years. I did sell off a 48 inch glass scale vernier gauge (ground gauge lines on both sides) for a huge profit. I still have a handful of B&S micrometers from 1 inch up to 6 inches. 0.0001. yep, 1/10,000th. There is also a 2 inch 10/1,000,000 (ten millionths). Even with all the springs and stuff it is a PITA to get repeatable readings. It has a system with a dial indicator setup on the 'fixed' anvil. General machining tolerances only need 1/1,000 tooling and the tolerances are usually held to well larger than that. Bearing fitting is one of the few things that can require tighter machining. In non-production environment it is not hard. In a production environment center-less grinding is the usual answer. The other solution is how bearing shells on crankshafts are done. A crankshaft is checked against the block it will be paired with using plastigauge on each bearing. The correct thickness shell is then picked bearing by bearing. For large tools Cincinnati Milacron used to be the big manufacturer for center-less grinding equipment, and it was always painfully expensive. Bridgeport for milling machines. Clausing for metal lathes. Old gently used small tools are often a bargain. If you want stationary tools get ready for a lot of work, or get Taiwanese stuff. It is often a PITA to use daily, but suitable for non-production use. It kind of sounds like you've been out of this line of work for awhile. |
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I have an Atlas/Clausing lathe. 
Bison lathe chucks any good? Mine's just got the 6" 3 jaw chuck it came with. Had a need for an 8" the other day, tho. 3-jaws are never as accurate as a 4-jaw (or even six or eight) with individual adjustment for each jaw section (it does take longer at setup). A collet is best of all when set up correctly but can get pricey since each collete insert only has a small range (and the more accurate the collet the smaller the range on each one). They are more suited to production work on the same size raw stock or already machined portion in the jaws. 3-jaws are not bad if you are going to machine the entire length of the stock and cut off the portion in the jaws. 4-jaws is the minimum if you need to re-chuck the work for any reason. Even marking jaw position on the turning is not as accurate a a 4-jaw and dial indicator. And yes, I have been doing this a long time. I have set up many a 3-phase idler system in residential areas without 3-phase 120/240 V single phase). The 'static' phase converters, and many of the older rotary ones have never been all that effective. An actual single phase motor driving a 3-phase alternator works much better, even than using an idler system. The use of VFDs even at a single speed has eliminated most of that. |
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I've found many Brown and Sharpe micrometers at good prices on ebay. B&S don't seem to command the premium price that Starrett and Mitutoyo have. I have bought several B&S mics at an average of $25 each. Those are great prices, I'm going to have to hit up ebay |