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19th Jul 2016, 02:55 PM
Thread: Winch post angle
by joe greiner- Replies
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Probably just to make room for the boat. ...
Probably just to make room for the boat.
Cheers,
Joe -
7th Jun 2016, 03:21 PM
Thread: printing dfx file to real size
by joe greiner- Replies
- 7
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- 1,782
According to Google, dfx is an audio file format....
According to Google, dfx is an audio file format. CAD, however, is dxf. This is a text-based ASCII file, with commands compatible with CAD programs.
CAD programs typically don't care about the... -
28th Feb 2016, 02:43 PM
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India Ink
Several years ago, NASA found that India ink is best for polishing Al. Improves fuel consumption, I guess.
Cheers,
Joe -
5th Feb 2016, 04:35 PM
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Sticky: Include pictures if possible. Cheers,J Joe
Include pictures if possible.
Cheers,J
Joe -
30th May 2015, 03:19 PM
Thread: recharging a flat WD40 aerosol cans
by joe greiner- Replies
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- 10,640
Tube Storage
Wrap a rubber band around the can, doubled if necessary. Tuck the tube between the rubber and the can.
Joe -
26th Apr 2015, 02:55 PM
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Several years ago, NASA found the best polish for...
Several years ago, NASA found the best polish for aluminium (for airplanes to reduce wind resistance and improve fuel consumption) was India ink. I believe it's water based, so should clean up...
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19th Dec 2014, 03:32 PM
Thread: Finding some flat wire
by joe greiner- Replies
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- 4,420
Electrician's fish wire, about 3mm x 1mm, is used...
Electrician's fish wire, about 3mm x 1mm, is used to feed wiring in walls. Street sweeper bristles are about the same size.
Cheers,
Joe -
26th Feb 2013, 02:05 AM
Thread: What is this type of fastener?
by joe greiner- Replies
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Sometimes called "she-bolts." Also, Google...
Sometimes called "she-bolts."
Also, Google [charles leonard aluminum screw posts]; may be found at office supply shops.
Cheers,
Joe -
16th Jan 2013, 02:57 AM
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I have a vague recollection of doing something...
I have a vague recollection of doing something like this, using a drill press with a V-block and a distant support for the far end.
Drill the first hole near one end. Reverse the pipe. Place a... -
21st Nov 2012, 02:44 AM
Thread: posting video
by joe greiner- Replies
- 1
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- 4,277
Like Robbo did:...
Like Robbo did: http://www.woodworkforums.com/f8/safety-videos-161900/
Post on YouTube, then embed a link in your message.
Cheers,
Joe -
9th Nov 2012, 04:30 PM
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Press brake with 135-degree dies (plus springback...
Press brake with 135-degree dies (plus springback allowance - establish by test).
Also test for consistent location of work points along the raw material.
For AL, you could probably use DIY... -
3rd Nov 2012, 03:03 AM
Thread: How would you make this?
by joe greiner- Replies
- 5
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- 4,923
Lost Wax?
Maybe:
Clone the quasi-allthread in plaster of Paris for a waste core. Setting expansion of the p-o-P provides clearance. Mold the body thereon in wax. Proceed as in lost wax process.
Cheers,... -
16th Oct 2012, 09:40 PM
Thread: Removing a mis-aligned roll pin
by joe greiner- Replies
- 25
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- 13,300
Cool. Thanks. Cheers, Joe
Cool. Thanks.
Cheers,
Joe -
7th Oct 2012, 10:00 PM
Thread: Casting 'Pewter'
by joe greiner- Replies
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If the shape permits (hint: post a picture of...
If the shape permits (hint: post a picture of your pattern), I would use a two-part mold to include the top surface as confined. Set the top surface sloping upward toward a riser. After casting, cut...
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4th Aug 2012, 09:54 PM
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From a Tech Brief that I've misplaced (of...
From a Tech Brief that I've misplaced (of course), NASA found that India Ink was best for final polishing AL. Probably for the Hubble telescope mirror.
Also, what they said.
Cheers,
Joe -
2nd Aug 2012, 10:38 PM
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Many years ago, in his Mathematical Games section...
Many years ago, in his Mathematical Games section of Scientific American, Martin Gardner described a "hatchet planimeter," which was a simple hatchet with a tracing point at the far end of the...
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4th Jul 2012, 01:02 AM
Thread: Folding Ali Checker Plate
by joe greiner- Replies
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- 8,237
Simplest way to bend is to not bend.:D If the...
Simplest way to bend is to not bend.:D
If the corner are all 90 degrees, I'd use extruded AL angle as inside backers at the corners. Use pop rivets for connections. Beware the choice of rivet... -
9th Jun 2012, 09:12 PM
Thread: Hole Pattern assistance.
by joe greiner- Replies
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Set a straightedge tangent to the 60mm holes....
Set a straightedge tangent to the 60mm holes. Measure to the far side of the 83mm holes. As long as you're measuring to like locations, measuring to such locations is more accurate, and more precise,...
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8th Jun 2012, 10:19 PM
Thread: Hole Pattern assistance.
by joe greiner- Replies
- 20
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If you have the part in hand, simply transfer...
If you have the part in hand, simply transfer drill into the workpiece. Estimate the central cutout beforehand; "clamp" with hot-melt glue. Warm in an oven to release afterwards.
Cheers,
Joe -
3rd Feb 2012, 11:09 PM
Thread: Best way to bend steel Mesh
by joe greiner- Replies
- 23
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- 16,889
Chain Oil
For an alternate method of storing chain saws, take a look at pic5 in message #4 here: http://www.woodworkforums.com/f8/chainsaw-use-revisited-47976/
I drain the oil, and attach cutoff plastic... -
3rd Jan 2012, 11:36 PM
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I used a wood dowel to measure the internal...
I used a wood dowel to measure the internal threads on my wood lathe, similar to MC900. No specifications I'm aware of. I shaped a very long taper, and wound it into the hollow spindle as far as it...
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30th Dec 2011, 11:48 PM
Thread: How was this made ?
by joe greiner- Replies
- 22
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- 9,263
Ray's not wrong (wheelinround). Drop forged -...
Ray's not wrong (wheelinround). Drop forged - same as the female end of socket extension bars. Examine one with a magnifying glass; I just did.:wink:
Broaches need to pass through the work.
... -
29th Dec 2011, 12:31 AM
Thread: 100mm Hole in Bandsaw Door
by joe greiner- Replies
- 52
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- 26,391
Before committing major surgery, I'd consider...
Before committing major surgery, I'd consider some less heroic efforts. As noted, total area is more important than shape.
1. Modify the latch so that it leaves the lower door ajar, but not loose... -
15th Nov 2011, 11:06 PM
Thread: search dramas
by joe greiner- Replies
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The search engine can't find three-letter matches...
The search engine can't find three-letter matches or less, because there are too many three-letter words. Try a more elaborate keyword, e.g. spelling out one of your terms.
Cheers,
Joe -
18th Oct 2011, 12:14 AM
Thread: Drilling square hole
by joe greiner- Replies
- 9
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- 6,305
More here:...
More here: http://www.woodworkforums.com/f170/drilling-square-hole-142303/
Same link as kraits BTW.
Cheers,
Joe -
15th Oct 2011, 10:45 PM
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I wish you could do a picture too. But if I grasp...
I wish you could do a picture too. But if I grasp it anyway, diagonal braces (in an X-pattern between the upper and lower outriggers) would increase the stiffness. One diagonal brace between the...
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10th Oct 2011, 11:22 PM
Thread: Memory teaser
by joe greiner- Replies
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The HP-41CV had 4 removable modules with packaged...
The HP-41CV had 4 removable modules with packaged programs or DIY storage, an auxiliary card reader ("cards" about 10mm x 50mm magnetic) for storing DIY programs, and a printer (thermal I think) with...
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10th Oct 2011, 10:49 PM
Thread: Memory teaser
by joe greiner- Replies
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Most of the above, except the longest slide rule...
Most of the above, except the longest slide rule I've used was 24". In olden times, maths classrooms had jumbo slide rules for instruction, mounted above the chalkboard (also a relic I suppose)....
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9th Oct 2011, 10:56 PM
Thread: Trailer add ons share them here
by joe greiner- Replies
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No picture, but a worthwhile modification to a...
No picture, but a worthwhile modification to a removable tailgate ramp. The hinge pins are usually the same length. Which means a 2-man task to re-install. Grind about 4mm off the end of one of the...
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7th Oct 2011, 12:04 AM
Thread: Bolex Camera Factory 1960's
by joe greiner- Replies
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- 8,735
The "pull-down" (so called) of 8mm film is half...
The "pull-down" (so called) of 8mm film is half the pitch of 16mm. So there are double the number of sprocket holes per inch (or meter). And woe betide the lab that slits 16mm footage thinking it was...
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1st Oct 2011, 09:07 PM
Thread: Dremel help
by joe greiner- Replies
- 7
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- 6,420
I'm not sure if this will help, because features...
I'm not sure if this will help, because features and availability seem to be in a state of flux.
The Dremel router base for overhead routing, #230 (not 231), engages the collar of the tool without... -
24th Sep 2011, 07:30 PM
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I would make a jig consisting of a sheet of...
I would make a jig consisting of a sheet of plywood, with two short strips of flat 10 x 3 attached Northeast of the hole location, to form stops. Clamp the jig to the drill press table, and make some...
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28th Aug 2011, 10:06 PM
Thread: sharp bend
by joe greiner- Replies
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The "sharp" bend you seek will be limited by the...
The "sharp" bend you seek will be limited by the minimum safe bending radius to prevent cracking, as Stuart indicates. This is generally on the order of several times the sheet thickness, and there's...
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24th Aug 2011, 10:41 PM
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I doubt that they're rust holes at all. It's very...
I doubt that they're rust holes at all. It's very unusual for rust to form so precisely. More likely, they were drilled to make it an exact weight. Before proceeding with "repairs," weigh it to...
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20th Aug 2011, 09:04 PM
Thread: Bar Strength
by joe greiner- Replies
- 11
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- 6,934
Please check your measurements and/or unit...
Please check your measurements and/or unit conversions. Your brief is more appropriate for an overhead crane.
Cheers,
Joe -
28th Jul 2011, 12:22 AM
Thread: Which Tool for cutting sheet metal
by joe greiner- Replies
- 16
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- 18,543
Nibbler
Nibbler for tight curves. Like some of these near bottom of page: McMaster-Carr
Cheers,
Joe -
26th Jul 2011, 11:32 PM
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It might have been a previous upgrade of software...
It might have been a previous upgrade of software (VBulletin), now upgraded further. The AAW forum has that feature, and I find it underwhelming - needs a second click for full window.
Cheers,
Joe -
12th Jul 2011, 10:02 PM
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The corners are the expensive parts, and a small...
The corners are the expensive parts, and a small window has only slightly less material. Even worse if you need operating sash (double/single hung, jalousie, etc.).
As far as being unable to make... -
10th Jul 2011, 09:14 PM
Thread: loctite?
by joe greiner- Replies
- 7
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- 7,029
Try moving to a sacrificial scrap when you shut...
Try moving to a sacrificial scrap when you shut down the router, to let the sanding disk serve as a brake. The resistance will tend to tighten the disk instead of allowing rotational momentum to...
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9th Jul 2011, 10:20 PM
Thread: loctite?
by joe greiner- Replies
- 7
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- 7,029
If there's enough room on the thread, consider a...
If there's enough room on the thread, consider a jam nut; full height if possible. If the disc hub is round, you'll probably need to grind two flats for wrench purchase. And if there's insufficient...
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25th Jun 2011, 10:53 PM
Thread: Hydraulic Pipe Bender
by joe greiner- Replies
- 10
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- 12,966
Pack it with sand before bending; plug with corks...
Pack it with sand before bending; plug with corks if necessary. Shake out afterwards.
Cheers,
Joe -
9th May 2011, 09:29 PM
Thread: Molding Lead Sinkers
by joe greiner- Replies
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Around here, lead is considered hazardous waste....
Around here, lead is considered hazardous waste. Tire dealers usually replace old balance weights on new tires, because the clips don't work well a second time. They're usually happy to give the old...
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13th Apr 2011, 11:30 PM
Thread: How's this for something unique
by joe greiner- Replies
- 4
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- 4,132
Looks like a solution in search of a problem. ...
Looks like a solution in search of a problem.
But some of the neighbor videos are cool.
Cheers,
Joe -
10th Apr 2011, 11:31 PM
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A lady co-worker (a non-engineer) once asked me,...
A lady co-worker (a non-engineer) once asked me, "How do they [whatever it was]?" I reckoned it would take about half an hour to explain, and that after a few seconds her eyes would glaze over. So I...
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6th Apr 2011, 10:20 PM
Thread: Drilling stainless steel
by joe greiner- Replies
- 10
- Views
- 7,729
cobalt
Use cobalt drill bits. Google is your friend.
Cheers,
Joe -
26th Mar 2011, 11:50 PM
Thread: Signatures???
by joe greiner- Replies
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Signatures, avatars, and other profile...
Signatures, avatars, and other profile information affect all of your posts when changed - past, present and future. Makes for some really weird references in old posts.:D:rolleyes::oo:
Cheers,... -
8th Mar 2011, 12:41 AM
Thread: hey i am new joint today,
by joe greiner- Replies
- 14
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- 8,866
The bend (deflection angle) is properly measured...
The bend (deflection angle) is properly measured between the tangents. Looks like about 85 degrees.
[Drawn freehand in MSPaint. Unreliable]
Cheers,
Joe -
6th Mar 2011, 12:00 AM
Thread: hey i am new joint today,
by joe greiner- Replies
- 14
- Views
- 8,866
If the legs are short enough, use an adjustable...
If the legs are short enough, use an adjustable bevel (like this: Squares & Bevels - about half way down the page) to set the angle, and a protractor to measure.
If the legs are too long for... -
2nd Jan 2011, 11:53 PM
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Google [ice tongs] for some pictures. If you add...
Google [ice tongs] for some pictures. If you add a short chain between the handles, a regular crane hook can engage the chain for lifting. There are similar contraptions for lifting sheet steel...
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14th Dec 2010, 10:30 PM
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For long grips especially, correct tension is...
For long grips especially, correct tension is achieved by stretching the bolt. The spring washer thus is the weak link, or softer. And thanks for the link to the NASA studies, which I'd lost track...