Search found 185 matches

by choprboy
Thu Apr 19, 2018 11:44 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: WTB: 5C collets and blocks or divider ndexing plates
Replies: 3
Views: 95

Re: WTB: 5C collets and blocks or divider ndexing plates

Yeah, the first couple things are relatively straight forward. I already have a 5C spin indexer, but only a handful of random collets. Several of the things I need to do are a fair bit large though... 24 splines in a ~2" bore of a ~5" flange and 6 notches for a ~3" castellated nut. Easy to divide in...
by choprboy
Thu Apr 19, 2018 2:33 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: WTB: 5C collets and blocks or divider ndexing plates
Replies: 3
Views: 95

WTB: 5C collets and blocks or divider ndexing plates

Looking for a standard set of 5C collets and hex block (dodecagon would be great), no preference on brand. Or some indexing plates I could use to make a custom index fixture. I want to cut some splined shafts and collars, but not exactly sure how I'm going to do it yet. Probably single-point broach ...
by choprboy
Thu Apr 12, 2018 2:48 pm
Forum: Favorite Places to Shop In Your Area
Topic: HGR industrial surplus. Euclid Ohio
Replies: 18
Views: 7076

Re: HGR industrial surplus. Euclid Ohio

I recently tried to buy from HGR after oggling for a few weeks... but I had to cancel the order. They wanted $250 to ship a 100lb chuck across the country. Is this normal? I get a standard crap UPS shipping rates and it only cost about $150 to ship 140lbs in the other direction. You just have to be ...
by choprboy
Wed Apr 11, 2018 11:59 pm
Forum: General Discussion
Topic: Threading inserts
Replies: 2
Views: 262

Re: Threading inserts

I suppose the laydown type are "state-of-the-art" as they profile both the bottom and top of the thread simultaneously. But, unfortunately, that also means they are many part numbers, each specific to certain thread pitches. A single V type (HSS, triangular, triangle-on-its-side) can do a larger ran...
by choprboy
Thu Apr 05, 2018 12:13 am
Forum: Milling Machines
Topic: Need help with a rockwell 21-100
Replies: 4
Views: 298

Re: Need help with a rockwell 21-100

Easy. Disconnect the motor wires from the power switch if necessary (varies between units, most have been pre or post wired to various reversible drum switches mounted to the column). Loosen the over-arm clamp bolts. Slide the head and over-arm out of the column. Be sure to get the shaft key/secure ...
by choprboy
Tue Apr 03, 2018 3:40 pm
Forum: General Discussion
Topic: How do I use a shaper?
Replies: 14
Views: 742

Re: How do I use a shaper?

I would think no... and not for the most immediately thought reason. First, with a 7" shaper you would have to take at least 3 passes across a 16" surface (assuming you can not machine it in a shorter dimension). That's not too bad as you can adjust both the length and position of the stroke, along ...
by choprboy
Sun Feb 25, 2018 2:32 pm
Forum: Lathes
Topic: Need a way to turn a 30 tpi screw.
Replies: 89
Views: 2852

Re: Need a way to turn a 30 tpi screw.

Does your lathe have change-able gearing (for metric/different sizes) between the spindle and the threading box? Can you recalculate for a different input ratio? So, for instance, your threading box is driven by a 30tooth gear on the spindle and a 60tooth gear on the threading input. The threading c...
by choprboy
Tue Feb 20, 2018 10:43 pm
Forum: General Discussion
Topic: Does Motor Oil Corrode Brass?
Replies: 22
Views: 933

Re: Does Motor Oil Corrode Brass?

The answer is probably not, but maybe, and it completely depends on which particular "motor oil" you are using. The same can be said for "GL-5" oils... in that you can't really tell anything by the label. The corrosion can come from a number of sources, but as warmstrong1955 says, it happens mostly ...
by choprboy
Sun Feb 18, 2018 6:39 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: scrap metal prices
Replies: 7
Views: 515

Re: scrap metal prices

Yes, the Op said buying, not selling, at the scrap yard. At the scrap yard here it's about $0.35/lb for steel, $0.45/lb structural steel (tube/beams), $0.45-$0.65/lb stainless, I don't remember what aluminum was. Industrial metal supply has cutoffs in steel for $0.25-$0.45/lb, aluminum cutoffs $1/lb...
by choprboy
Wed Feb 14, 2018 12:20 am
Forum: General Discussion
Topic: A nice way to store reamers??
Replies: 11
Views: 744

Re: A nice way to store reamers??

I think you are just looking for telescoping endmill/drill cases? Apparently McMaster has some, but it looks like its mostly bulk from a manufacturer other than that (bottom of page): https://www.mcmaster.com/#drill-bit-boxes/=ghmu2q On the other hand, why not just use a plain plastic or cardboard s...
by choprboy
Thu Feb 08, 2018 9:53 pm
Forum: Lathes
Topic: Drum switch to motor (HELP)
Replies: 9
Views: 517

Re: Dum switch to motor (HELP)

Need a better picture, the flash is obscuring the nameplate "reverse leads xxx & T8 for CCW".
by choprboy
Fri Feb 02, 2018 12:48 am
Forum: Lathes
Topic: BXA toolholder
Replies: 12
Views: 808

Re: BXA toolholder

You can take a guess from the toolpost exterior dimensions, but you really need to measure the dovetail with pins. Unfortunately... while AXA/BXA/etc. are sort-of-standardized by lathe size (tool height), it seems like every manufacturer uses a bit different dovetail dimensions for the same size cla...