Thanks for the ideas, and the latex tubing used in sling shots is also a good idea. I will need to review those links to see what is available.
Here is a product similar to what I am looking for from UMX Inc. Lanyard Supply:
* LY-WR-401EC 1/8”(D) x 14”(L) Elastic Round Cord (approx 4 ½”...
Thanks for all the responses, and the comment about the notch sensitivity of a solid elastomeric core was a good point. So why is tearing typically not a problem with rubber bands under normal use (light-duty)?
The linear bungee / shock cord typcially found in stores have hardware (hooks...
I was thinking of a toroid (doughnut) shape, such as an o-ring, as it would be lower in cost, and perhaps readily available off-the-shelf. An open-ended linear cord (circular cross-section) is also an option, but may have higher associated costs.
I am looking to use an elastic cord in an...
I have an application where I am in need of an elastic cord. Similar products on the market are the Goody elastic cords (http://www.goodycomfort.com/main.taf?p=1,4) used which are used as hair bands, and are only available in a few sizes. I have considered using an o-ring as various standard...
I am looking for a 3-D CAD model of a generic 28-400 SP Neck Finish Closure (Cap). I have notice similar requests in other threads which are now closed"
Bottle Thread: http://www.eng-tips.com/viewthread.cfm?qid=171032
Bottle Cap Thread: http://www.eng-tips.com/viewthread.cfm?qid=220854
As...
Chris,
Can you provide a contact at Borealis? I have not yet received a reply to my request from them, nor have I received a reply from LyondellBasell. SABIC (GE Plastics) has let go of some of their staff recently. I do not know if these other companies have been effected by lay-offs as well...
It seems the best source for this information is in the machinery's handbook (Spring materials: pages 309-312).
For flat strip form, the following high-carbon spring steels are suggested:
* Cold-Rolled Spring Steel, Blue-Tempered or Annealed, AISI/SAE 1074, 1064, and 1070 (Hardness: 42 to 46...
Thanks for the reply. A similar application are battery mounting clips (http://www.keyelco.com/products/prod41a.asp?SubCategoryID=8), which are nickle-plated spring steel.
Although it does not specify the extact spring steel material, this resource provides some options...
What is the material typically used in creating leaf springs for consumer parts? Is it 17-7 PH stainless steel, 316 S.S., or some other steel material?
Specifically, I have seen leaf springs used on portable garage door openers that mount under the visor in a car, and the sheet metal is approx...
The question was in regards to a removable cantilever snap fit (~ few hundred cycles). According to a document titled "The nonlinear viscoelastic behavior of polypropylene", the yield strain of PP is estimated as 13%.
MatWeb lists the average elongation at yield (PP) = 9.65%...
I have a questions about the material property of PP . I found this article regarding cantilever snap fits. My FEA software is not suited for plastics with non-linear stress-strain curves. I have a similar design manual from BASF Plastics and was looking for additional information about...
I would like to know the pros and cons when comparing two-shot (two-color), co-injection, and in-mold decorating to each other. What is the general cost and availability if manufactured in the United States?
I have designed overmolded parts (plastic with elastomeric overmold) in the past. This...
Refer to this links
Reading Points from Excel: http://www.mcadcentral.com/solidworks/forum/forum_posts.asp?TID=1510&KW=xyz
Cloud Point Import: http://forum.solidworks.com/forum/messageview.cfm?catid=20&threadid=15466&highlight_key=y&keyword1=scanto3d%20txt
I think SolidWorks would be a good choice. Pro/Engineer is also great when designing sheet metal parts. I use both and generally prefer SolidWorks, but you cannot go wrong using Pro-E to design sheet metal parts.
Try to talk your SolidWorks VAR into giving you a free 90-day license. That should...
