Proper mounting maximizes the undisturbed frequency range of the accelerometer response. When we need to mount an accelerometer to a screw or bolt, we replace the fastener with a hex head bolt that has had the top face of the bolt head machined so that it is flat (ideal = 0.0003 inch TIR) and...
Just to add to the comments, we also have tried using the AGILE process for hardware development. We found that 4-6 week sprint lengths allowed enough time to accomplish some significant work. The problem we encountered is that if a team member had their sprint interrupted with an unplanned...
Hi,
I am new to the point cloud data from white light scans. I was given a link to Polyworks Viewer 3D. I think there is a free version that can be used for visualizing the point cloud.
I would be curious to know how others are using this data. For us, we are using the data to check the shape...
There is a standardized method for testing for chemical compatibility using test coupons. See the attachment. Also, sharp corners should be avoided as they cause stress concentrations that lead to cracking. The mold maker should be able to go back and add slight radii to the sharp corners that...
Check out Loctite's magnet bonding guide LT3564. I have had success with the Loctite 380 as long as the assembler is careful in applying the correct amount.http://files.engineering.com/getfile.aspx?folder=f4acb7a4-c5f9-4652-8d01-d74da7fc32b8&file=lt3564_MagnetBonding.pdf
I am able to extract an indented BOM from our PLM software for placement into Excel 2003. The tab-delimited BOM file has the indents shown via a column of values. I would like to indent certain columns in Excel based on the value in the indent level column that has been imported.
Example:
A...
There is a free Word 2003 "lessons learned" template offered by Microsoft at:
http://office.microsoft.com/en-us/templates/TC011417221033.aspx
Sometimes when I am starting from scratch on a document, I look for an equivalent primer in order to get the thinking process started.
I want to thank everyone for the helpful suggestions. [medal] I ended up purchasing a Canon Powershot A720 IS.
So far, we have been very happy with the ability of the camera to quickly and easily take close-up shots in macro mode.
I also read a tip recently where a blogger suggested using a...
Hi all,
I am looking to buy a digital camera for our group's use in the workplace. One of the primary functions will likely be in the form of macro (close-up) shots of small areas and parts. This is generally helpful in documenting part failures such as breakages due to shock testing, gear...
Mechmaj,
You can also turn to other sources beside Excel for curve-fitting. For some online tools, check out:
http://www.zunzun.com/
http://www.savetman.com/curvefit/index.html
http://www.softintegration.com/chhtml/lang/lib/libch/numeric/CGI_Curvefit.html
http://www.xuru.org/rt/TOC.asp
I have...
We call out the true position relative to the minor diameter. That way a standard gage pin can be used to represent the hole position. Just add "Minor Diameter" below the G,D & T feature control frame.
At the risk of restarting zuccus" addiction, here is another TIM knock-off in the form of a online, free game.
http://www.teagames.com/games/blueprint/play.php
Has anyone ever tried "The Incredible Machine" (TIM)? The objective is to create a machine out of a series of devices that performs a specific task. There are free demos to try, just google the name.
I have used a shareware program called Geargen in the past (see http://www.bookcase.com/library/software/msdos.desktop.cad.html)
to draw the involute. I believe Geargen can output the shape as a wireframe in dxf format, which can be imported into most 3D modelers and then extruded to create a 3D...
Also check ISTA:
http://www.ista.org/Testing/Tests.htm
They will provide testing guidelines so you can verify your unit, and the packaging's integrity.
We have had good success with Ni-Cu-Ni plating over NdFeB magnets. We then bond the magnet to 6063-T5 aluminum with Loctite 326 prepped with Loctite 7649 primer. If the surfaces are properly cleaned, and adhesive correctly applied, the joint will withstand a lot of stress. We have thoroughly...
The best case would be to find a supplier who can supply us the stamped out part made from silicon steel. But if we can find a source for the material, we can refer our stamping suppliers to them. BTW, it is possible that these parts will end up as part of an assembly that is built in the Far...
