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Very nice, and drilling the hole in the corner is a valuable feature. For those nice tight glue joints you made, you do not need much clamping force so "spreading the angle" should not be a problem, and you have the metal square behind to check. Good work, thank you.
Be sure to use original JB Weld, not the "quick" variety.
Add in-line outlets to 110v appliance power cord.
Design criteria for Stirling cycle engine
Table saw sled for precise angled cuts
Really good shop storage option; I like the lip at the top which keeps the boxes stacked.
Find exact center and drill concentric holes in metal rods
How to sharpen your woodworking tools with sandpaper
HA! good joke.
Asphalt shingle replacement, stop those roof leaks!
Vacuum Cannon drives ping pong ball at supersonic speed
i made it. (jk.)
Ok thank you for these precisions!!
Oh, I wondered... my misinterpretation. Maybe we should go metric and say your motor is between 2kw and 6kw. I think you need a major scale-up here, that is like 10 times the power I tested. I doubt the brake blocks I used would work in your case. It would be best if you did not just clamp down on the motor shaft only, you should have something like a brake drum. Remember the key equation: Power = torque x RPM.
My workbench is much more messy now compared with four years ago.
I misspoke, the engine I want to check is between 3 and 8 hp. I should probably replace wood with a more resistant materiel to friction and heat ?
Maybe not too much, in my tests, the AC motor tested 0.15 HP, the DC motor 0.35 HP. Your engine I assume is 3/8 HP, or 0.375 HP. Pretty close. The main thing to be aware of (and be careful of) is that when you clamp down on the Prony brake it will heat up fast; and even faster for higher HP engines. You may want to make modest changes to the design, just use the equations I listed. Good luck with it.
Bench top dynomometer
What should I do to renforce this set up to test 3-8 HP engine ?
Your bearing press jig is the key; I'm going to have to rig up something for tapping straight. I'm using the same cutter as yours. I made a decent threaded box with my prototype #1 jig, but it only has a 1" x 6" long lead screw. I would like to use a long section of 1" 8tpi all thread as you did, but can not find it locally - it needs to be perfectly straight, as yours seems to be. Where did you get that all thread rod? ThanksBill
Thanks for your comments and valuable suggestions. Yes, I am now rotating the LCD more often, which does help. My "new" problem with the S9900 is that Nikon packed so many buttons and dials that my fat fingers often hit the wrong keys. But I'm learning...Bill
Thanks Daniel - Patching only goes so far, as you know. This year I broke down and had a new roof put on! I live in Olympia. Bill
PS it may be a later model S9900 but you can take photos with it using a smartphone as a remote control for the camera, which can also help in difficult light situations.
Hello Bill. On my Coolpix S9900 you can rotate the LCD. I find that this can be useful if the light is obscuring the the LCD. I have found this to be useful.
Many DSLRs can be used as "point & shoots" and I would hazard a guess that the majority of them in amateur hands are used that way.
It is not only "true DLSRs" that have viewfinders. My Canon SX50 has a viewfinder that I have found useful from time to time although I use the LCD most of the time. The SX50 is also a lot my compact then most "true DLSRs" and I prefer to use one camera rather than lug a bag full of lenses etc round with me when I travel.
These are really some great tips. I work as a roofing contractors in Tacoma, but I was not aware of this technique of finding roof leaks. I went through this article and I found this technique very amazing. It is really helping me a lot. Thank you for sharing such great points.
Drilling and tapping hardwoods
Thanks BtheBike. Yes, should help in both Winter and Summer. The only downside, of course, is that it will block your view out those sliding doors!
Doing this right now , Late summer but HOT . Only 1/2 done with sliding doors and this stuff is cutting the heat out but at least 5 degrees F. Hope to see the same temp stability when winter cold kicks in . I actually get frost inside the doors.
Energy saving window insulation
Simple Shop Storage Bins
Activated carbon odor killer filter for RV's and boats
Solar powered model engines to teach principles of renewable energy.
Small cheap check valves for tubing
Nice work, including your guitar music.So you cut 8 tpi threads with your jig; have you tried other lead screws for cutting other tpi? And did you post photos of your tapping press addition? I'm ordering the 60 degree cutter tonight, so I'm on my way to a threading jig for my lathe.Thanks much.
Nice project, thanks. Your method is better (in some ways) than using a machinist's V head square, which is small for large items.But I initially stopped at the first method, with carpenter's square and speed square. I think I understand the method, do you just measure out 1/2 way, draw a line, and repeat?
Thanks - I should have figured that out, obviously did not.
Retrofit Mortise and Tenon Joints
This is one very good way to sharpen your chisels/plane blades etc, but you forgot to mention one very important thing, safety and common sense. I have used this method for ages, except instead of using MDF for the final polish, I use a leather strop. When using this method the blades become extremely sharp. So, please, don't test the sharpness with your finger as it WILL cut. Great instructable. Nice one!
Determine how magnetic field varies with distance
yea and I built an engine that is perpetual lol ;)
yea to power a tiny led
Make a Camera View-sight for Bird Photography
Why do you need to polish the tip?
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