Machining tips
Machining tips
(OP)
Here is some good info for anyone that is either new to the profession, or need a refresher. :)
http://www.omwcorp.com/partdesign.html
http://www.omwcorp.com/partdesign.html
Chris
SolidWorks 07 4.0/PDMWorks 07
AutoCAD 06
ctopher's home (updated 04-21-07)





RE: Machining tips
Great web page....
Cheers,
Anna Wood
SW 2007 SP4.0, WinXP
Dell Precision 380, Pentium D940, 4 Gigs RAM, FX3450
http://designsmarter.typepad.com/solidmuse
http://www.phxswug.com
RE: Machining tips
Regards,
RE: Machining tips
I am sure there will be the normal it is not a designers job to make the machinists job easy comments however.
RE: Machining tips
Thanks for posting ctopher. Have a star
thixoguy
RE: Machining tips
I'm happy it works for everyone. It's great to have and to go back for reference often. A lot of good info in one place.
Chris
SolidWorks 07 4.0/PDMWorks 07
AutoCAD 06
ctopher's home (updated 04-21-07)
RE: Machining tips
The only item that I take exception with is making the the inclusion of contact info on the drawing mandatory. This would be better included in the PO or related instructions. It would not be cost effective to incorporate a drawing change due to a personel change or a project handoff.
RE: Machining tips
A great reminder for us all. A star for you.
Bradley
SolidWorks Premim 2007 x64 SP4.0
PDM Works, Dell XPS Intel(R) Pentium(R) D CPU
3.00 GHz, 5 GB RAM, Virtual memory 12577 MB, nVidia 3400
RE: Machining tips
Ahhh... but it is the designers job to assure that the b/p reliably calls out the required features, that the b/p is unambiguous, and that the thing on the b/p is able to be manufactured.
RE: Machining tips
RE: Machining tips
Potentially very useful for prototypes (it's made me think about adding it as standard to our prototype stamp) but meaningless on production as staff change et. Also for production the machine shop should probably contact the purchaser on the PO or manufacturing engineer (especially in larger companies) not the designer/engineer directly etc.
I especially liked the section this matches my limited experience in this area.
Ajack, normally I'd be the one saying that but I like what NickE put. When it is possible to make the machinists job easier without sacrificing part definition etc then we should, however part function and supporting inspection take priority. Plus, a lot of peoples attempts at 'making life easier for the machinists' don't, they just make life harder for inspection/ensuring function of the part! At the end of the day though we need to make sure the part can be made cost effectively.
KENAT, probably the least qualified checker you'll ever meet...
RE: Machining tips
I 100% agree with both.
Thanks for catching that!
Chris
SolidWorks 07 4.0/PDMWorks 07
AutoCAD 06
ctopher's home (updated 04-21-07)
RE: Machining tips
I put a link to it and this thread in the mechanical area as I know it gets more traffic, hope you don't mind.
http://www
KENAT, probably the least qualified checker you'll ever meet...
RE: Machining tips
Chris
SolidWorks 07 4.0/PDMWorks 07
AutoCAD 06
ctopher's home (updated 04-21-07)
RE: Machining tips
What I did think is that pretty much if you fairly closely follow industry drawing standards then you meet a lot of the points in the link.
KENAT, probably the least qualified checker you'll ever meet...
RE: Machining tips
I think this one is strongly context-dependent. If the context is product design, I agree. In the one-off, custom machinery world where entire project schedules are measured in weeks, the quicker a question on a print is addressed the better. When I issue a drawing for fabrication, it may go through three sets of hands inside my company before either the in-house or an outside shop gets it. As the machine designer, I am really the only one qualified to answer most questions. If the shop calls the PO issuer in the Purchasing department, who calls the guy in my Parts Aquisition department, who looks in his paperwork to figure out who made the drawing and finally gets to me, it can cause several days delay on getting my part completed. We never issue a drawing without contact information.
RE: Machining tips
However, the important thing is that it's not a one size fits all rule.
KENAT, probably the least qualified checker you'll ever meet...
RE: Machining tips
Heckler![[americanflag] americanflag](https://www.tipmaster.com/images/americanflag.gif)
Sr. Mechanical Engineer
SWx 2007 SP 4.0 & Pro/E 2001
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This post contains no political overtones or undertones for that matter and in no way represents the poster's political agenda.
RE: Machining tips
Our standard title block has section for signoffs (design by/drawn by/engineer/check/appvd). I always put my telephone number under my name.
Wes C.
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No trees were killed in the sending of this message, but a large number of electrons were terribly inconvenienced.
RE: Machining tips
Thanks its very usefull.
RE: Machining tips
Thanks!
Chris
SolidWorks 07 4.0/PDMWorks 07
AutoCAD 06
ctopher's home (updated 04-21-07)
RE: Machining tips
Reason is my company is consultants and some clients do not have any mechanical engineering personnel in house, so a call to them from a fabricator would get lost.
This business model is more common now, and the note to include contact information is a good one.
RE: Machining tips
If 5 years after you did a job for a customer, were paid and had no outstanding contract coverage, you got phone calls from a machine shop asking you questions about that drawing would you still be so sure it was a good idea.
This is my point.
KENAT, probably the least qualified checker you'll ever meet...
RE: Machining tips
This phone number is valid till XXX day and for XX person(s) to call. No Lawyers, No solicitors, No loitering, No pets, No shirt, No shoes, No service.