Need A Quote- Small Part Repeat work

[millman52]

Direct questions & quote to mullinsmachining@hotmail.com

Please quote (100) pieces, (will take overruns to use full bar of stock).

Please include seperate shipping quote to ZIP 25164.

Bid will close 10/30/2009

Material: Use any cold rolled mild steel 1018, 1045 etc.

Please quote lead time

[Johns tool room]

OD and shoulder tolerance? e mail e with the details at madmachinist@embarqmail.com

[jr2840]

Can i get od turn and od tolerence please, and can you take a about 50 on over run i dont have any material, i would like to make it out of 1045 for better finsh. What ever you want just tell me. thanks johnathon

[mattsam]

Quote sent via email
Thanks for the opportunity

Matthew

[netboss]

Please post these answers to the group so all can see!

Grade for 1.375-12 threads?
Chamfer for 1.375 dia (threads)? (is that really a chamfer in the drawing or just a representation of the threads?)
tolerance for 1.5000 dia? Can it be stock diameter and finish?
tolerance for 1.7000 (overall length)? Is it cumulative on the 0.740 and 0.960 dims?

Thanks,
Gary

[jr2840]

Looked at the drawing the over all lenght is -+.02 on 1.70 in. long, i think, if i'm looking at the drawing right.

[netboss]

Actually as a practical measure, it is indeterminate.

There is no standard tolerance stated on the drawing for 4 decimal place dims. The most common tolerances are +-0.005 on dims with 3 decimal places and +-0.001 on dims with 4 decimal places. But the real standard is that the tolerances are to be stated on the drawing. To be honest it looks to me like whoever drew this drawing had the Dims set to 4 decimal places and didn't think beyond that.

In that absence of other stated tolerances, cumulative dimensions have the cumulative tolerances of the sections making up the cumulative dimension.

In the case of this drawing, the 0.740 dim could go from 0.720 to 0.760. The 0.960 dim could go from 0.940 to 0.980. Thus with no call out on the tolerance of the 1.7000 dim it could go from 1.640 (0.720 + 0.940) to 1.740 (0.760 + 0.980).

If a quote were submitted with the drawing as is, the part could be from 1.640 to 1.740 and still be within tolerance.

Point is, if you are going to submit a drawing for quotes, be sure EVERY tolerance is noted. Otherwise you may end up with parts that are "legal" within your drawing, but unusable to you. And if the machinist has produced the parts within anything close to accepted industry standards per the drawing, you may be liable to buy the parts.

And stating all specs will get you the most accurate quote. As example, for this part if the 1.5000 dia can be stock dia and finish for 1.500 dia stock, the quote is going to be a lot less than if the machinist quotes based upon tuning down oversize stock to meet some un-needed tolerance and/or finish.

Regards,
Gary

Originally Posted by jr2840 Looked at the drawing the over all lenght is -+.02 on 1.70 in. long, i think, if i'm looking at the drawing right.

[calhoon]

Originally Posted by millman52 Direct questions & quote to mullinsmachining@hotmail.com Please quote (100) pieces, (will take overruns to use full bar of stock). Please include seperate shipping quote to ZIP 25164. Bid will close 10/30/2009 Material: Use any cold rolled mild steel 1018, 1045 etc. Please quote lead time

100 pieces mm-5035 $4.60ea lead time 10 working days.
Frieght to 25164 for 100 pieces $48.00 would ship in 2 35# boxes
Thanks for the opportunity.
Jim Calhoon
Support Products Inc.
307 Professional Park Ave.
Effingham, IL 62401
217.536.6171

[Dualkit]

Originally Posted by calhoon 100 pieces mm-5035 $4.60ea lead time 10 working days. Frieght to 25164 for 100 pieces $48.00 would ship in 2 35# boxes Thanks for the opportunity. Jim Calhoon Support Products Inc. 307 Professional Park Ave. Effingham, IL 62401 217.536.6171

Could everyone STOP posting bid prices. It creates a reverse auction and guarantees you won't win, you are hurting yourself and everyone else. As an example I bid slightly higher than you if I was into this reverse auction process I would lop 25 cents off and rebid. I won't do that, but the next guy is going to come in at $4.50 or lower, hopefully he will bid privately.

[desbromilow]

Please quote (100) pieces, (will take overruns to use full bar of stock).

Not quoting, just learning the jargon..

does the mention of overruns above mean the buyer will accept delivery of more than the requested 100 units if the process used to make the parts makes a higher number from a standard length of material?
If not, what does it mean?

Des

[Dualkit]

Originally Posted by desbromilow Please quote (100) pieces, (will take overruns to use full bar of stock). Not quoting, just learning the jargon.. does the mention of overruns above mean the buyer will accept delivery of more than the requested 100 units if the process used to make the parts makes a higher number from a standard length of material? If not, what does it mean? Des

Basically the buyer will accept the maximum amount of parts that can be make out of a full bar of stock, if it significantly reduces price. Raw material is much cheaper in full bar lengths in these parts. This type steel is commonly sold in 20 foot lengths, so the the average yield from a full bar would be around 130 parts.

[millman52]

Originally Posted by netboss Actually as a practical measure, it is indeterminate. There is no standard tolerance stated on the drawing for 4 decimal place dims. The most common tolerances are +-0.005 on dims with 3 decimal places and +-0.001 on dims with 4 decimal places. But the real standard is that the tolerances are to be stated on the drawing. To be honest it looks to me like whoever drew this drawing had the Dims set to 4 decimal places and didn't think beyond that. In that absence of other stated tolerances, cumulative dimensions have the cumulative tolerances of the sections making up the cumulative dimension. In the case of this drawing, the 0.740 dim could go from 0.720 to 0.760. The 0.960 dim could go from 0.940 to 0.980. Thus with no call out on the tolerance of the 1.7000 dim it could go from 1.640 (0.720 + 0.940) to 1.740 (0.760 + 0.980). If a quote were submitted with the drawing as is, the part could be from 1.640 to 1.740 and still be within tolerance. Point is, if you are going to submit a drawing for quotes, be sure EVERY tolerance is noted. Otherwise you may end up with parts that are "legal" within your drawing, but unusable to you. And if the machinist has produced the parts within anything close to accepted industry standards per the drawing, you may be liable to buy the parts. And stating all specs will get you the most accurate quote. As example, for this part if the 1.5000 dia can be stock dia and finish for 1.500 dia stock, the quote is going to be a lot less than if the machinist quotes based upon tuning down oversize stock to meet some un-needed tolerance and/or finish. Regards, Gary

The 1.5 major od will be within tolerance if cold rolled stock material is used.

The OAL length of 1.7" does have a large tolerance based on the +/-.020 allowed on the split. For clarification hold the OAL to .010

The threads need be standard 75% bolt thread & can go to sholder or be relieved the length of 1 1/2 threads

I have included .JPG image of a revised drawing.

I apologise for the confusion. I'll try to be more precise in the future.