What device or method is used on some types of jigsaws to dampen the vibrations cause by the moving rod or shaft?\n\nElastic mounting of the lower bearing\n\nAn eccentric counterweight\n\nAn offset wobble plate\n\nA control block
206759
my jigsaw has a framulator. Do your own homework.\nMIKE
188176
graduated cylinder... although you get a higher degree of accuracy with volumetric pipettes. :-)
148729
It's Hollowtech  (not hollowgram)\n\nIt is Shimano's name for the hollow forged cranks used with Octalink splined bottom brackets. These lightweight cranks are made by welding two forged aluminum channels together.\n\nHollowtech II \nThe two-piece crank /bottom bracket system introduced with the 2004 10-speed Dura-Ace line. These use external bearings that hang outboard from the bottom bracket shell.\n\nBall bearing is old-skool. Some other makers use a sealed bearing, rather than ball bearing or Hollowtech.
205074
I used to use "Saw Plus 32". I still use it but it is rather old.
586771
try here---\n         http://www.bearings.machinedesign.com/
387755
We did something like this in my physics lab with an Atwood machine.  It was a pully with weights hanging from it.  I can't exactly remember how it worked, but maybe this will inspire you.  We also did something with an air track and these two masses colliding and we'd see which one would go in which diretcion.  You need a nearly frictionless surface, like an air hockey table or ice slab.
284526
'chatter' is a high speed vibration that causes mayhem to the handling to a bike. it can be set off by the tyres or a bumpy track, it doesn't matter who you are chatter will attack any body. it can be dailled out of the suspension with careful adjustment. that guy above is just a prick who knows nowt
461714
Just search for 'moment of inertia'.  There are plenty of tables that show a square beam.  If it is offset, you can use the parallel axis theorem.
379805
If you mean Drill press table?\nOn the left side of the rear colume is a lever, turn counte-clockwiseto loosen, then on the right side is a crank c.w. to highten, c.c.w. to lower
350607
You got the CG just right.  Your method might work with enough concentration., but I would look at making the angular momentum come to zero:\nL = Iω = (2.7*.325²  + 1.3*.675²) * 26rpm*2π/60 = 2.389 kg m²/s\n\nTo stop the movement the angular impulse must equal the - of the angular momentum:\n\nT * t = L→ T = L/t = 2.389/5.8 = .4118 Nm (ccw)
178061
In engineering terms pendulums are called mass dampers, usually either active mass dampers or passive/tuned mass dampers.  Check out the Earthquake Engineering Research Institute to start.
673351
if you statically charge some sort of object, a glass rod works very well, by rubbing it on material in one direction only then hold it next to a stream of water the water should be repelled and bend away from it.
11774
If you have a seesaw let's say and you place a 100 Lb weight on one end and push down the other end to raise the weight one foot, your "machine" has done 100 ft-lb of work.  You should expect to get 100 ft-lb of work back out of the machine as the weight drops one foot to its original position.  However, if the bearings at the pivot are let's say badly rusted and you have to push down 200 lbs to rais the 100 lb weight the machine is inefficient and when the 100 lb weight drops again perhaps it exerts only 50 lb force at the other end.  If you divide output by input and multiply by 100%, you can calculate the machine's efficience.  In our examples:\n\n     output/inputx100% = efficiency\n\n     100/100x100% = 100%  (frictionless machine)\n\n     100/200x100% =  50%  (rusty work in)\n\n      50/100x100% =  50%  (rusty work out)
210259
You can buy this...\n\nhttp://www.cabelas.com/cabelas/en/templates/product/standard-item.jsp?_DARGS=/cabelas/en/common/catalog/item-link.jsp_A&_DAV=MainCatcat20712&id=0012783224318a&navCount=2&podId=0012783&parentId=cat20803&navAction=push&catalogCode=IG&rid=&parentType=index&indexId=cat20803&hasJS=true\n\nor just the hammer.  That's what I did and the pull is about 2lbs and smooth.
29796
well, do it on something random. i did it on Lego against Megablocks :which one has worse effects when it burns, how well it holds when having bricks dropped on it... try random stuff\n\none idea is "Do batteries gain weight after being used up?"
197799
First Question:\n\nBallscrews offer better precision in CNC machines which makes production faster and less downtime.\n\nSecond Question:\n\nLM Guide such as ultra-high rigidity and load capacity, are suitable for installation in machine tools such as lathes, grinding machines and compact CNC machining centres, where space is often an issue. LM Guide’s compact dimensions allow for additional construction around the unit. This provides greater stiffness, improving rigidity of the machine, while ensuring the designated machine area remains the same.\n\nThird Question:\n\nThe first benefit offered by all forms of CNC machine tools is improved automation. The operator intervention related to producing workpieces can be reduced or eliminated. Many CNC machines can run unattended during their entire machining cycle, freeing the operator to do other tasks. This gives the CNC user several side benefits including reduced operator fatigue, fewer mistakes caused by human error, and consistent and predictable machining time for each workpiece. Since the machine will be running under program control, the skill level required of the CNC operator (related to basic machining practice) is also reduced as compared to a machinist producing workpieces with conventional machine tools.\n\nThe second major benefit of CNC technology is consistent and accurate workpieces. Today's CNC machines boast almost unbelievable accuracy and repeatability specifications. This means that once a program is verified, two, ten, or one thousand identical workpieces can be easily produced with precision and consistency.\n\nA third benefit offered by most forms of CNC machine tools is flexibility. Since these machines are run from programs, running a different workpiece is almost as easy as loading a different program. Once a program has been verified and executed for one production run, it can be easily recalled the next time the workpiece is to be run. This leads to yet another benefit, fast change-overs. Since these machines are very easy to setup and run, and since programs can be easily loaded, they allow very short setup time. This is imperative with today's Just-In-Time product requirements.
163383
a lathe with a quick release chuck would be the best option, especially if their are multiple items however if this isnt practicle for you then its either an external de-burring tool or a file im afraid