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Metalworking

These groups are the best place for discussions about basic metalworking processes such as machining, welding, casting, blacksmithing and other aspects of working with metals.

⏣ General Metalworking

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Running a welding BUSINESS from a garage???

by Ignoramus11878
NOTE: This is **NOT** about me! I have a friend, who is 50 years old, all around very handy guy, knows how to MIG weld, generally decent at fabrication, small engine repair etc. His English, I wou... read more »

⚡ Welding Forums

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Running a welding BUSINESS from a garage???

by Ignoramus11878
NOTE: This is **NOT** about me! I have a friend, who is 50 years old, all around very handy guy, knows how to MIG weld, generally decent at fabrication, small engine repair etc. His English, I wou... read more »

⏣ Metalworking Craft

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Is this aluminum?

by John Doe
https://www.flickr.com/photos/27532210@N04/ The wheel. You should be able to zoom in. Notice it has a chip in what otherwise looks like aluminum. Do they bake the outer surface somehow to make ... read more »

⚒ Blacksmithing - wrought iron and steel discussions

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countertop aluminum foundry

by Neon John
Hi guys, Long time lurker, very infrequent poster. Let me introduce myself. I'm John DeArmond, Chief Engineer for http://www.fluxeon.com, a company that manufactures low cost induction heaters... read more »

Metallurgy discussions

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Multigrade interal combustion engine Oil should use what kin...

by skychensusie
As the lubricants are updated, what kind of viscosity index improver should be used in it? Polyisobutylene or Olefin Co-Polymer(OCP) can be adapted to low temperature performance in multigrade comb... read more »

Engineering and Science

These forums contain more advanced engineering and science topics, including physics and chemistry.

⏚ Electrical Engineering

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Differential Amplifier is an input stage of every op-amp

by Patrick Chung
Generally, if input stage of an operational amplifier is realized as BJT tr ansistor differential amplifier, op-amp has smaller slew rate, smaller volt age offset and better CMRR. If it's realized ... read more »

⚙ Stationary Engines - UK

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RE RUSTON 9H AND R.H.CAR

by NEIL F
DEAR RAY I AM HELPING A GROUP RE-COMMISSION R.H 9H ENG. NO. 143855 ALSO ON END OF C/SHAFT S16O6 9H 124 ALSO P26257 CAN YOU PLEASE HELP WITH ANY INFO.AS WE HAVE NEXT TO NOTHING. ALSO I STILL H... read more »

⚗ Material Sciences

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How to cure diluted PDMS with solvent

by thestargaze
Hi, I am doing some work with adding on a thin layer of PDMS that is diluted with a solvent (DCM, THF, 1,4-Dioxane) on a silicon wafer by spin-coating or drop coating. My problem is that I have notic... read more »

⚙ Mechanical Engineering

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engine oil lubricant additive

by admin
Modern lubricant oil is constantly update. the old lubricant or additive can't be use in modern engine oil. Skychen lubricant additives are developed with the lubricant evolution. Our lubricant add... read more »

⚗ Polymers Forum

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Instron Bluehill2 software demo or Time limited version

by agoo
Hi all I am looking for a demo or time limited version of an Instron software to run under any version of windows for controlling our Instron 4400 to give it a try. Any help will be appreciated. Plea... read more »

Computer-Aided Design and Manufacturing

Discussions about CAD/CAM, CNC, 3D modelling and other computer technologies used in design and manufacturing.

General Robotics Forum

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Working with Continous Servo

by Curly
Hi All, I am very new to electronics and Robots. I have been trying to run a continous servo motor 4v to 6v. I have a battery power source of 9v. I have the following question. Since my power sour... read more »

⧑ Industrial Control Group

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Modelling a motor for pid control

by Oluwokay Victor Johns
Hi All, I'm new to the group, so please be kind :) I was reading Tim Wescott's article on PID without a PhD and it was very us eful although it raised more questions in my mind. I then went over ... read more »

⋐⋒⋐ Computer Numeric Control

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Holding a tenth all day on a high speed mill!

by vinny
First of all, if you have no laser for tool pickup...move on. Read about the arab crap instead. Setup...2 fanuc makinos, 10 yrs old. Both have new spindles, and one has new leadscrews. machines... read more »

Solidworks CAD Design software

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Can anyone help me to create the curve on surfboard

by atulvijay007
Can anyone help me to create the curve on surfboard ..image and file attached file https://drive.google.com/file/d/0B49dYa5XQfP0QXAtM3dxRTJJN2c/view?usp=sharing image https://drive.google.com/... read more »

AutoCAD discussions

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BluEntCAD Partners With An Award Winning Architecture Firm I...

by Richard Menon
BluEntCAD, offering 3d rendering services in Houston, Texas, Florida and New York, announces a strategic partnership with a New York City based award winning architecture firm to provide 3d rendering... read more »

PRO/Engineer (Creo) discussions

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Not able to open the editor for curve inPro/E

by bibhax
Hello All, I'm not able to open the editor after selecting the type of co-ordinate system in curve option. Are there any option need to active ?? read more »

Model Engineering

Application of engineering and manufacturing technologies to creating scale models and small machines and mechanisms. Various hobbies that require the use of machining, casting and other processes also used in manufacturing, are discussed here.

⚙ Model Engineering in the UK

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faffing, fitting, and fettling

by Peter Fairbrother
faff: activity without immediately beneficial effect on the object being faffed about - though during the faffing the faffer might (or might not) learn something which he can later use to more ef... read more »

Model Railroad Forum

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Big railroad HO layout

by a425couple
We had a fun day today and went for the yearly show when the public is clearly invited to view the display. Take a look: http://www.scwrra.org/layout/intro.html http://www.scwrra.org/layout/int... read more »

Scale modeling discussions

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IJN Oyodo in 1/700 scale for sale

by Alexander Blokhin
http://www.ebay.com/itm/201242813979?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649 read more »

Model railroading in the UK

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Auction

by Davey
http://www.twgaze.co.uk/auction/lots/?id=883&lot=5272&pp=999999#block Start at Lot 5188 or thereabouts. -- Davey. read more »

✈ RC aircraft models

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Where are tracks?

by clesovsky
I live in Southern California in the USA. Where are the nearest tracks? read more »

Model rockets forum

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rec.models.rockets FAQ Part 02 - Names and Addresses

by rmrfaq
Archive-name: model-rockets/addresses Rec-models-rockets-archive-name: rockets-faq/part02 Posting-Frequency: weekly Last-modified: 2002 May 14 URL: http://www.ninfinger.org/~sven/rockets/rmrfaq.t... read more »

⚃ Lego Mindstorms Discussions

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LEGO 3D Milling Machine

by passerby
Saw this in another group, could not resist re-posting here: http://youtu.be/oF0pMILT7_Y NXT-based. Given that it's Easter today, can't resist the temptation to compare it to the Eggbot - similar des... read more »

⚃ Using Lego and compatible building blocks

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Generating LDD building instructions?

by Paul F├â┬Ârster
Hi, a question to all the many people here on this high-traffic group using LDD for construction: How do you do proper building instructions? I mean, the built-in HTML building guide generator ... read more »

International Engineering (BETA)

We provide access to several professional and hobby engineering newsgroups in languages other than English. Due to heavy use of technical and scientific terms, these discussions are relatively easy to translate to the language of your choice. Please note: support of groups in languages other than English is still in BETA. Some features, such as post and reply, are not currently working in the international forums.

⏚ Electrical Engineering (German)

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FYA: Aepfel und Birnen

by Ralf . K u s m i e r z
X-No-Archive: Yes begin Thread Moin! (Ich habe ihn schon gefaltet. Hundertprozentig.) Ralf -- read more »

⚙ General Engineering Forum (German)

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S: Heizleiter wie Heckscheibe?

by Reinhard Weltzer
Hallo zusammen, Zum Beispiel so, wie eine el. beheizte Heckscheibe. Das ist m.W. aufgedruckt. ITO scheidet aus: In manchen Bereichen muss das Glas unbeschichtet bleiben. Die Heizung muss um die... read more »

⏚ Electrical Engineering (French)

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[Charte] fr.sci.electrotechnique

by L'equipe fr-chartes
Archive-Name: fr/chartes/sci.electrotechnique Bonjour, 28 novembre 1999. =============== CHARTE DU FORUM =============== NOM DU GROUPE : fr.sci.electrotechnique OBJET : leur place dans ... read more »

RC and scale modeling (German)

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Her mit Euren Modellbau-Links!

by Gregor Szaktilla
Hallo allerseits! ergiebig ist, wie mikrocontroller.net? Wenn ja, dann bitte her mit dem Link! Dankscheee vorweg Gregor read more »

RC and scale modeling (French)

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[Conseils d'utilisation] fr.rec.modelisme

by J.F PION
Archive-Name: fr/chartes/rec.modelisme ======================================================================= = Conseils d'utilisation du forum fr.rec.modelisme = ==========... read more »

RC and scale modeling (Italian)

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Pistone incollato.

by SOMMERGIBILE
L'ultima volta che ho usato il Supertigre mi sono dimenticato di fare il lavaggio. Ho provato a lasciare il tutto a bagno nel solvente alla nitro ma niente da fare. Come posso risolvere? read more »

RC and scale modeling (Polish)

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Lotus 78

by Jack
https://www.youtube.com/watch?v=bqjTRLK5mYs ttps://www.youtube.com/watch?v=AQpn8CytIEc read more »

Engineering Science (Polish)

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D┼║wig

by Robert Wa─é─ůkowski
http://www.dumpert.nl/mediabase/6630438/4852d99e/mislukt_huwelijksaanzoek_in_ijsselstein.html Robert read more »