Previous in Forum: WATER FILTERS   Next in Forum: 600 PSI air pressure test
Close
Close
Close
12 comments
Rate Comments: Nested
Associate

Join Date: Aug 2008
Posts: 33

Manuafcture rubber bits!

08/27/2008 3:43 PM

Can someone please tell me of any manufacture who is capable of making small elasticated rubber bits for my product? Although it isnt complicated, it needs to be made to specification.

The rubber bits need to be similar to the following diagram, but with rounded edges.

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru

Join Date: Apr 2008
Location: Chicago
Posts: 3990
Good Answers: 144
#1

Re: Manuafcture rubber bits!

08/27/2008 11:48 PM

Depending on the material, a company like thermoflex which uses cnc lathes to make very precise high end rubber floor mats... they could do a thousand plus in a multi cavity mold... but how many do you need?

Have you considered molding a few of your own?

__________________
High Tolerance is Beautiful
Register to Reply
Commentator

Join Date: Oct 2007
Posts: 98
Good Answers: 2
#2

Re: Manufacture rubber bits!

08/28/2008 1:08 AM

The dimensions in your drawing are not clear. I guess it is 20 x 4 x 30 mm lg and hollow inside. Again depending on the type and quality of rubber used, it should be easily possible to extrude long tubes of required cross section and then cut it to whatever length required. I have seen fine hollow silicon rubber tubes of about 1 mm OD used for medical application.

Register to Reply
Power-User

Join Date: Feb 2008
Location: Newmarket, near Toronto, Ontario, Canada
Posts: 126
Good Answers: 2
#7
In reply to #2

Re: Manufacture rubber bits!

08/28/2008 9:15 AM

Hi there,

it seems that the rounded edges need to be discussed further, as extrusion and cutting will create an issue for these.

Attached is a picture showing rads - are all edges rounded like my 3D CAD or just the inner and outers is the question. What is the surface roughness allowance and the overall tolerance is another question as it will also affect manufacturing processing.

Mirco

__________________
Mirco
Register to Reply
Associate

Join Date: Aug 2008
Posts: 33
#11
In reply to #7

Re: Manufacture rubber bits!

08/29/2008 12:52 PM

Thanks mircoconsultant for your comments(and your diagram) they are appreciated.

Again if circular are cheaper and easier to do then thats the way forward. When you say 'surface roughness allowance and the overall tolerance will affect the manufacturing', I presume you mean cost?

By the way what software package did you use to draw your diagram?

I notice you have give it a blue colour. Does manufacturing it in different colours add to the cost?

Register to Reply
Power-User

Join Date: Feb 2008
Location: Newmarket, near Toronto, Ontario, Canada
Posts: 126
Good Answers: 2
#12
In reply to #11

Re: Manufacture rubber bits!

09/02/2008 8:00 AM

Dear Humble,

We used Pro-E Wildfire 4.0 and the internal rendering engine. This was used to create the image.

The reason I asked about the roughness, etc. was to determine partially what final manufaturing method would apply to you. We were looking at this due to the fact that there are now rapid prototyping processes out there which allow rapid manufacturing to be used. Such is the case with some of the products we are familiar with such as Z-Corp(R) elastomer 3D printing. These machines can make small part runs of up to a few hundert parts cost effectively with virtually no delay. All you need is an .stl file (most all 3D CAD programs can output these files in one way or another). The .stl file is then uploaded into the printing software and your parts are made, depending on size, not one at a time, but perhaps the entire batch of lets say 50 pcs. Be cautious though, as the 3 D prototyping printing method is meant for just that primarily - prototypes. It really depends on your application, in some cases it may be possible to actually use these prototype parts for production of your assemblies.

Tolerance: as with RP (Rapid Prototyping) processes, the tolerance is someting that can not be defined clearly, although the 3D printing process gives reasonable finishes. Generally, the smaller the tolerance (or number of zeros perceived after the decimal point) the grater will be your price of manufacture, or perhaps the manufacturer will reject your design drawing or model and tell you that the part can not be manufactured. It is important that you know what the maximum allowable part size variation in your part is, in terms of your assembly.

A rubber tube may just be easier, although it is not much easier than hitting the 3D print button from the software, regardless of the complexity of the shape you are printing, and then getting your part from the machine.

The blue colour in our previous 3D model was used as we feel that it more effectively shows the rads. Colour may increase the cost of manufacture, especially if you hold your manufacturer to a specific colour spec rather than saying "blue please".

I hope this helps a little, www.canstampconsulting.com currently provides more links to Z-Corp(R), as well as some video footage links on RP processing.

MG.

__________________
Mirco
Register to Reply
Associate

Join Date: Aug 2008
Posts: 33
#10
In reply to #2

Re: Manufacture rubber bits!

08/29/2008 12:47 PM

Thanks Humble Ess for your response, although I thought the drawing should clarify everything.

If it is easier and costs less to manufacture circular tubing rather than my proposed rectangular tubes then I stall choose circular.

Register to Reply
Guru

Join Date: Jun 2007
Location: Florida
Posts: 940
Good Answers: 28
#3

Re: Manuafcture rubber bits!

08/28/2008 1:21 AM
__________________
Nothing exceeds like excess.
Register to Reply
Anonymous Poster
#4

Re: Manuafcture rubber bits!

08/28/2008 2:33 AM

try

www.trafilo.com or www.3plast.com

the two compaines make seals

regards

mahmoud

Register to Reply Off Topic (Score 5)
Anonymous Poster
#5

Re: Manuafcture rubber bits!

08/28/2008 7:40 AM

Send a drawing and quantity information to me at hburt@robin-industries.com. Molded rubber is what we do, and we do it well.

Register to Reply
Power-User
Hobbies - Fishing - New Member Popular Science - Evolution - New Member United States - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Jul 2007
Location: Cleveland, OH
Posts: 445
Good Answers: 10
#9
In reply to #5

Re: Manuafcture rubber bits!

08/28/2008 2:45 PM

This was my post. Forgot to login.

__________________
"Just a little off the top" - Marie Antoinette
Register to Reply
Power-User

Join Date: Feb 2008
Location: Newmarket, near Toronto, Ontario, Canada
Posts: 126
Good Answers: 2
#6

Re: Manuafcture rubber bits!

08/28/2008 9:02 AM

Hello,

You can send a request for further information to sales@canstampconsulting.com, there you will likely get help and perhaps some short run / Rapid prototyping ideas if you need that, is this personal product development or industrial?

Mirco.

__________________
Mirco
Register to Reply
Power-User

Join Date: Mar 2008
Location: Globaly - very close to the southern most point of Canada
Posts: 445
Good Answers: 12
#8

Re: Manuafcture rubber bits!

08/28/2008 9:23 AM

THERMOPOL INC

13 INTERSTATE DR, SOMERSWORTH, NH 03878-1210

http://www.THERMOPOLUSA.COM

__________________
-why bother doing it wrong when it will be anyway.......
Register to Reply
Register to Reply 12 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (2); gdevine (1); HarryBurt (1); Humble Ess (1); Jaguar (1); JE in Chicago (1); mircoconsultant (3); touchnturn (2)

Previous in Forum: WATER FILTERS   Next in Forum: 600 PSI air pressure test
You might be interested in: Drill Bits, Router Bits, Rubber Tubing

Advertisement