RFQ Small delrin part suitable for cnc machining

[rodjava]

Request for Quote

Opening date: July 3, 2009
Closing date: July 17, 2009

Material: Delrin Acetal Rod, White Color, 1" Diameter

Material supplier: Shop

Quantity Quote for: 250-500 including delivery to San Francisco, CA94134. Please quote for all requested quantities.

Delivery: 3 inspection pieces due 7 days (flexible) after acceptance. I will pay for overnight postage for all inspection pieces. Estimated initial order of 500 pieces due within 14 days (flexible) after acceptance.

Projected reorder: Estimate 100-500 per month.

Machining requirements: Parts to be free from burrs dirt and oil. Except for the ¼ -20 thread, tolerances are not critical.

The drawings that I initially provide should be used for reference only. The final part has been slightly modified and not indicated in these drawing. I will supply a complete and final design part to be used for duplication.

I will also need the services of your draftman to make a complete set of Autocad drawing for the final part.

Attachment 83740

Attachment 83741

Contact: Rodney Java

Email: rodneyjava at yahoo dot com

Address: Rodney Java
114 Arleta Ave
San Francisco, CA94134
415 350 5282

[rodjava]

The following attachemts did not transmit with orginal message.

Request for Quote

Opening date: July 3, 2009
Closing date: July 17, 2009

Material: Delrin Acetal Rod, White Color, 1" Diameter

Material supplier: Shop

Quantity Quote for: 250-500 including delivery to San Francisco, CA94134. Please quote for all requested quantities.

Delivery: 3 inspection pieces due 7 days (flexible) after acceptance. I will pay for overnight postage for all inspection pieces. Estimated initial order of 500 pieces due within 14 days (flexible) after acceptance.

Projected reorder: Estimate 100-500 per month.

Machining requirements: Parts to be free from burrs dirt and oil. Except for the ¼ -20 thread, tolerances are not critical.

Design notes: Please note that ¼ -20 threads is a blind bottom thread. (Not indicated on drawing)

The drawings that I initially provide should be used for reference only. The final part has been slightly modified and not indicated in these drawing. I will supply a complete and final design part to be used for duplication.

Contact: Rodney Java

Email: rodneyjava at yahoo dot com

Address: Rodney Java
114 Arleta Ave
San Francisco, CA94134
415 350 5282

1kc2_Part.dwg

[Pyrokuda]

Quote sent!

Have a great 4th!

Brad

Briscoe Machining LLC
757-615-6216
briscoe_machining@hotmail.com

[rodjava]

Brad,
I acknowledge your quote.
I will award the job at the end of the bidding deadline.

Rod

[Donkey Hotey]

Rodney, my compliments to you sir! That is the most professional RFQ I've ever seen posted here--very thorough. You should get exactly what you want from it.

Just a comment on the threads: I see a very small wall thickness where the threaded hole intersects the bore. My fear is that the plastic will deform at that thin wall portion, during machining. If the threading is done last, it could cause a bulge in the back wall. If the threading is done first, the remaining web could bulge or tear during the creation of the larger bore.

Maybe that's not an issue on your final design but it caught my eye. Good luck with the quote.

[rodjava]

Greg,
Thanks for the props.
Also, for the heads up on the wall thickness. Fortunately, we haven't run into this problem with the past 1000 pieces. It might just be the way the machine shop produced them.

Take care,

Rodney

[justice25]

Sent PM with quote

[rodjava]

This RQF has been awarded.
Thank you to every shop that responded.
I will keep all contact information for future RFQ's

I will not be in a position to disclose any of the details.

Keep American Alive with US made parts.

Rodney Java

[Matt@RFR]

Rodney, can you atleast give us a hint at the winning price per part/per quantity? I really thought I had a chance at this one...apparently not.

[rodjava]

Matt,

As you probably know by the specifications, this part was a prime candidate for the mold making process.

The awarded shop cleverly suggested a lower price per piece when initially machined and a similar price per piece when molded.

My investment in the mold would be very minimal knowing that my price per piece would be higher than a typical molded piece price.

I hope my explanation makes sense without divulging the actual unit price which should remain confidential.

Rodney Java
San Francisco

[Runner4404spd]

sadly this kind of rfq doesn't keep america alive. what you ended up doing is misleading alot of people into thinking they have a shot at this. sure you had it quoted and made in the usa, but you wasted a bunch of peoples time when in reality its mold job and should have been requested as such. suck up the mold costs and make your parts. this isn't the first time i've seen you quote this part, and if you had only a run of 200 or so then yes a cnc would be cheaper then shelling out for a mold. but the part is 3 ops, and that will require 3 fixtures. or at a minimum a rotary axis. alot of guys like myself went and had material quoted, spent time figuring out the setups, only to find out that you went with a mold shop, which is not what you originally asked for.

[rodjava]

Runner4404spd,
I respect what you have to say.

I have had 1000's of these parts machined from a previous RFQ in 2008-2009.

Todays economics forces US machine shops to explore alternative and creative machining and pricing schemes. Without it, I would be out of business because of the higher cost. I'm feeling the effects of this bad economy just like you.

I'm just glad that it was offered to me. Now two American companies are still in business, paying taxes and making a effort to turn things around.

Like I said. I respect what you have to say and admire you for speaking out.

I remain,

Rodney Java
San Francisco
An American, doing business with other American companies.