Welcome to Online Community for Engineers and Metalworking Enthusiasts

Some of our best rated resources

Have a question or want to start a discussion? Post it! No Registration Necessary

PolyTechForum.com website provides free, on-the-go reading and posting access to 32 Usenet discussion groups, completely anonymously and without requiring registration.

Metalworking

Angle shelving uprights - too much point load?

posted on 09-17-2021

I picked up a sturdy shelving unit (2' x 4' for now) from a local industrial liquidator; it uses perforated angle for the uprights, and will live in a residential garage. While the unit is far m... read more »

Al-GMAW summery is correct?

posted on 09-14-2021

Hello all Using industrial 3-phase welding machine with Constant Voltage and Pulse, with pure Ar shielding gas and 1.2mm (47thou) 5183 wire (Al-Mg-Mn). On Al 5083 and 6062 Finding 10m/min and... read more »

anvil

posted on 03-21-2021

Hi have started to fix a anvil , can't find any marking but a 15 raised on it . can't find out what kind of anvil it is. read more »

What are the Common Processing Methods for Sheet Metal Processing?

posted on 08-19-2021

As a Sheet Metal CNC Bending Processing Supplier, share it with you. The process of using various equipment to change the shape of sheet metal is called sheet metal processing, and the main processes... read more »

Fanuc CNC (F & G) I/O signals

posted on 03-19-2021

Hello everyone Hope all are fine doing well, I am trying to search F and G signals mannu al or list for Fanuc controller but I can't find it on the internet what ca n I find is one information ... read more »

Engineering and Science

OT Nuclear U-Boats; how do they condense the steam?

posted on 09-16-2021

After following the Vigil TV series (with all its reported errors) and also the prog on HMS Trenchard, when a Brit U-boat is powered by nuclear fuels, how do they condense the steam? With sea wat... read more »

Villiers 425H

posted on 09-01-2021

G'day All. There is some very handy information here which I will use latter. At this stage I am trying to identify my Villiers engine so I can buy the correct parts for it. The Model on the compl... read more »

CFM Rating

posted on 08-21-2020

Does anyone know how to locate the CFM rating of Maytag Dryer model MED8630HW? read more »

What is polyethylene foam?

posted on 12-18-2019

Polyethylene foam is a durable, lightweight, resilient, closed-cell materia l. It is often used for packaging fragile goods due to its excellent vibrat ion dampening and insulation properties. It a... read more »

Computer-Aided Design and Manufacturing

Configuration Error with Solidworks 2007 SP0.0

posted on 04-23-2021

My Solidworks 2007 SP0.0 has suddenly started to throw up the message 'Please wait while Windows configures Solidworks 2007 SP0.0'. It then searches for the Installation disk #1, which I have long s... read more »

Spel 80M for SRC200 robot controller

posted on 12-26-2020

Does anyone here has a copy of Spel 80m software? Thank you read more »

Help to get started on project (Case trimmer)

posted on 05-20-2020

Hi All I'm new here, but not new to CAD, just very (VERY) rusty I want to create a 3D drawing of a Case Trimmer, Case Length Gauge & Shell Holder I can draw this in 2D without too much effort, b... read more »

Drive Shaft Structural Characteristics

posted on 06-21-2021

Here are the structural characteristics of drive shafts shared by Drive Shaft Suppliers, please feel free to contact us if you need The drive shaft is a high speed, less supported rotating body, so i... read more »

I tried to Export the assembly from ProE Intralink workspace to Disk. But I got a message showing "An error occured on Import/Export." Do anyone help me to resolve this ?

posted on 07-28-2017

Even I check the all dependencies everything looks good. All the sub components are exported with out any error. But Every time when i tried to export the assembly file , I get this message. read more »

Model Engineering

F-8E Crusader French Special 1/48 instructions for Hasegawa

posted on 02-09-2020

My son gave me one but without the instructions... Can someone help? Thanks. read more »

Estes A8 engines thrust curve change?

posted on 02-02-2021

Does anyone know if Estes changed the thrust curve of the A8 engines? A tech doc from the 70's shows only a spike for boost. Today's website shows a spike followed by a flatter sustaining thrust... read more »

Double E

posted on 04-20-2021

I am a 76 year old ex-Brooklyn resident who rode ?the double E? ?? a thousand times in my youth. 1 branch of the NYC transit system is called the IND (Independent) line. The express trains were t... read more »

Here's an interesting map ...

posted on 09-13-2021

Bristol railways about 1880, from Dr.Day's Bridge Junction to North Somerset Junction. Move the blue slider at the top to see what is there now! rohttps://maps.nls.uk/geo/explore/print/#zoom=16&la... read more »

Proctor Antic Bipe

posted on 06-02-2020

I recently completed a Proctor Antic Bipe. What a beautiful kit to build and fly. Photos here: http://mhmyers.com/antic/antic.html -- m-m www.mhmyers.com read more »

Help on screw size

posted on 08-07-2021

Trying to identify a machine screw. Certainly not metric ... can anybody help identify the thread ... OD is 0.156 so assume its a 5/32 Pitch is 36 That is a fine pitch Only thing I can find ... read more »

Jacob Sparre Andersen has passed away

posted on 12-17-2018

I have been asked to announce to this group that Jacob Sparre Andersen has passed away from stomach cancer on Sunday 16th of December 2018. Jacob was admitted to hospital only a month ago, and des... read more »

LEGO 3D Milling Machine

posted on 03-31-2013

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 »

International Engineering (BETA)

Defektes Stromkabel lokalisieren

posted on 09-18-2021

In der Stadt ist gestern eine 10 kV-Leitung ausgefallen. (Die Stadt wird aktuell ersatzweise durch eine andere Leitung versorgt.) Mehrere Stunden sind die Leute vom Netzbetreiber mit Tablets durch ... read more »

[MANIFESTO] it.hobby.modellismo

posted on 09-03-2021

In fondo a questo articolo, inviato automaticamente ogni mese, troverai il manifesto di questo newsgroup (it.hobby.modellismo). . Tieni presente che esistono anche questi newsgroup it.test ... read more »

Suche Empfehlung fuer kleine Drehbank

posted on 05-05-2021

Hallo, Kennt jemand diese Maschinen, sind sie emfehlenswert? Und wenn ja, welches Modell sollte man nehmen? Die Unimat SL und Unimat 3 werden [xpost drh und drmm, fup2 drh] Martin read more »

Jaka stal na projekt DIY

posted on 03-18-2021

https://www.specshop.pl/product-pol-25258-Survival-Kettle-Kuchenka-survivalowa-Samotny-Wilk-Bushcraft-DUO.html -- P. Jankisz read more »

[Conseils d'utilisation] fr.rec.modelisme

posted on 09-02-2021

Archive-Name: fr/chartes/rec.modelisme ======================================= read more »

[Charte] fr.sci.electrotechnique

posted on 09-02-2021

Archive-Name: fr/chartes/sci.electrotechnique Bonjour, 28 novembre 1999. =============== CHARTE DU FORUM ============&# read more »

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.