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Type: Posts; User: Nmbmxer
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11-28-2019, 09:02 PM
Thread: 1/2-10 5 Start Lead Screw Tap
by Nmbmxer- Replies
- 37
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- 2,269
I think your choices are to single point it, or...
I think your choices are to single point it, or my preference if loading allows, cast one from Moglice.
Ive made 3/8 acme lead screw nuts from Delrin by using a ball end mill to make 3 grooves... -
11-28-2019, 08:26 PM
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You do it just like you have it shown. I put a...
You do it just like you have it shown. I put a 123 block under the tip vs letting it ride on the table. Zero on the left, swing to the other side and adjust until the indicator reads half the error....
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10-24-2019, 09:57 PM
Thread: Lathe spindle not very smooth.
by Nmbmxer- Replies
- 18
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- 1,640
Sometimes the construction of the gearbox makes a...
Sometimes the construction of the gearbox makes a lot of resistance, a geared head lathe can usually be put between gears and will roll over easily. If there are drive belts from the spindle down to...
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10-08-2019, 12:57 PM
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It looks like you are doing them one at a time on...
It looks like you are doing them one at a time on the 4th? I'd figure out how to get 2 parts on on the 4th you have.
Then if you still wanted too, build two air/oil carriages with drill motors... -
10-05-2019, 01:11 PM
Thread: Lathe jaw covers to make "soft jaws"
by Nmbmxer- Replies
- 21
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I use 16ga aluminum sheet, sheared to be ~1.5”...
I use 16ga aluminum sheet, sheared to be ~1.5” wide. I roll a piece in a U around the stock and cut it off with snips. I like to make them such that the jaws squish the u around the part so when you...
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10-03-2019, 10:46 AM
Thread: 1" pocket measures 9.7"
by Nmbmxer- Replies
- 89
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- 5,017
While I completely disagree with how you are...
While I completely disagree with how you are checking your accuracy, I would however suggest instead of moving from 0.000 to 1.000 and measuring the distance between the marks you instead move from...
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09-30-2019, 05:04 PM
Thread: Aloris CA-25 Tool Holder
by Nmbmxer- Replies
- 13
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- 1,042
I would think it’s for facing both sides of a...
I would think it’s for facing both sides of a small flange.
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09-29-2019, 08:16 PM
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The compound on my Whacheon has zero marked...
The compound on my Whacheon has zero marked parallel to the spindle and the graduations stop at 45. There is however a mark at ~60. That’s what I use for threading, I don’t know if it’s 60.5 or 60,...
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09-28-2019, 11:59 PM
Thread: What size drill for 1" reamer?
by Nmbmxer- Replies
- 34
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- 2,695
I’d also check what size your drills actually...
I’d also check what size your drills actually punch, if it cuts over you might not have anything left to ream.
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09-25-2019, 01:44 PM
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You can pick up angles or arcs with the 3D...
You can pick up angles or arcs with the 3D Taster, you just have to account for the offset made by the probe diameter. If you were using cad and your mill as a cmm you would pick up 3 locations on...
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09-25-2019, 01:08 PM
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I repaired a bunch of lab equipment in college...
I repaired a bunch of lab equipment in college that involved a lot of IC replacements. We had solder wick and the sucker gun / pens. I much preferred to carefully mask the board around the IC,...
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09-25-2019, 09:15 AM
Thread: Pins for boom truck crane - fit tolerance
by Nmbmxer- Replies
- 11
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- 1,363
I'm not sure what the big question is here. Look...
I'm not sure what the big question is here. Look up the bearing on the GGB website and bore the housing to the correct size. A 2" heavy wall Garmax bearing specifies a 2.500/2.501 housing for...
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09-16-2019, 05:16 PM
Thread: Switch barrel on Remington 700
by Nmbmxer- Replies
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I would have set the shoulders back and fit a...
I would have set the shoulders back and fit a locknut, aka the Remage.
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09-13-2019, 05:08 PM
Thread: Surface Grinder versus T&C Grinder
by Nmbmxer- Replies
- 15
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- 1,677
It really is like a lathe vs mill thing. T&C make...
It really is like a lathe vs mill thing. T&C make crappy surface grinders, they aren’t rigid and the downfeed is often less precise. If you want to make (hard) things flat or square, get a surface...
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09-13-2019, 03:27 PM
Thread: Surface Grinder versus T&C Grinder
by Nmbmxer- Replies
- 15
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- 1,677
I'd trade the surface grinder I have in my small...
I'd trade the surface grinder I have in my small shop for a T&C in a heartbeat. I don't surface grind often, mostly sharpen tools. Cylindrical grinding is a pain, especially if you want to grind a...
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09-12-2019, 01:52 PM
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I use a lot of DNMG-432 (55°) or a VNMG-332/331...
I use a lot of DNMG-432 (55°) or a VNMG-332/331 (35°), the 55° is a lot stronger.
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08-29-2019, 08:20 AM
Thread: BXA toolholder, why dog point screws?
by Nmbmxer- Replies
- 24
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I got a dozen oversized CXA holders from...
I got a dozen oversized CXA holders from aliexpress for my home shop and they have dog point set screws. If you put a 1" tool in the 1" slot there are two threads engaged on the set screws, you can't...
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08-26-2019, 09:53 AM
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Is each diameter being approached in the same...
Is each diameter being approached in the same direction?
I had an old Mazak that would turn slightly different sizes if there was a lead-in chamfer, ie approaching in X+ (up and over) vs a... -
08-14-2019, 11:11 AM
Thread: Leveling a lathe, can't get it perfect???
by Nmbmxer- Replies
- 34
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- 4,247
I have a Webb WL-435 (17x40), it had a twist in...
I have a Webb WL-435 (17x40), it had a twist in the base casting that gravity wouldn't pull out. I have it sitting on 3.5" tall steel blocks to get the controls up where I could reach them with out...
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08-12-2019, 10:10 PM
Thread: Enlarging Bores in Thick Hardened Washers
by Nmbmxer- Replies
- 55
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- 5,375
If you use the dry torque value it will...
If you use the dry torque value it will eventually break from being installed over proof if you lubricate it. You can’t lubricate threads that are not intended to be lubricated and use the same...
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08-08-2019, 05:06 PM
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You're missing the point. What keeps the...
You're missing the point. What keeps the government from becoming tyrannical? From ethnic cleansing? From stealing your money? From not representing your wishes in our representative government?...
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08-08-2019, 12:09 PM
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Either universal licensing or registration keeps...
Either universal licensing or registration keeps someone from going to the truck stop stealing a tractor? Once you plan to break a law, might as well break a few. Like getting stolen firearm or...
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08-08-2019, 08:51 AM
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Gun control is like socialism, the only reason it...
Gun control is like socialism, the only reason it fails is that you didn't do it right. Do more and try again...
Freedom is scary. And "mass shootings" are inconsequential to everything except... -
08-07-2019, 12:30 AM
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I never fool with the spindle center. They can be...
I never fool with the spindle center. They can be hard to knock out. I just chuck some scrap and turn a center using the compound. It has zero runout and I can use the chuck jaws to drive the lathe...
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08-02-2019, 10:57 AM
Thread: Enlarging Bores in Thick Hardened Washers
by Nmbmxer- Replies
- 55
- Views
- 5,375
I was going to write a long treatise on the...
I was going to write a long treatise on the ignorance of some of the posters regarding bolted connections, but I decided against it as it is obvious only a handful in the thread have ever designed...
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