6 votes
Accepted

Isn't a pin support supposed to prevent translation both horizontally and vertically?

It's simple: while B is a pinned support, C is a roller. You can see that in the figure, where B is drawn clearly bolted to the "ground" while C isn't. In fact, the contact between C and the "wall" ...
Wasabi's user avatar
  • 13.1k
4 votes

How to create an airtight connection between Stainless Steel and PTFE?

You're going to struggle to get a reliable gas tight fit with that design. For a start it would be better if the two connections were separate so they aren't fighting against each other in terms of ...
Chris Johns's user avatar
  • 15.2k
4 votes

What is the name used for this type of connectors?

Try the search term water proof or water resistance connectors for electric bikes. Here is similar Electric Bike Connector Here another similar connector used in Electric Bikes Here is similar ...
Mahendra Gunawardena's user avatar
3 votes

What does 12CC refer to when talking about voltage?

Italian "corrente continua" is Direct Current.
elchambro's user avatar
  • 131
3 votes

What would the name of this cable support be called?

What you need is a non-flexible "tension tie"that would not easily buckle while compressed. A stretchable cable, or a rope may not prevent the handles from rotation about the connection at ...
r13's user avatar
  • 8,174
3 votes

How to create an airtight connection between Stainless Steel and PTFE?

If you have to use the Teflon for some reason(s), you can bond the Teflon part to the SS by first etching the Teflon with a special etchant designed for Teflon and then you can use a high temp epoxy ...
William Hird's user avatar
3 votes
Accepted

Why are the support reactions of the two pin-connected members different?

The rod BC is a two force member. Therefore, the forces on either end must be along the axis of the member. i.e. since the rod is horizontal, the forces on either end can only be horizontal. The ...
Daniel K's user avatar
  • 2,646
2 votes
Accepted

Connection for beam very close to concrete wall

Full penetration weld would be ok. I am more concerned about that bolts between the beam and the concrete edge. It could be difficult to tight them and inspection would be problematic too. Also you ...
minas lemonis's user avatar
2 votes
Accepted

Can pinned support / pin joint transfer moments in 3D?

Yes it can, and in many designs it should be a pin support along one axis and fixed support along other. In many trusses and bridges that is the case. The design software when defining a joint have ...
kamran's user avatar
  • 22.2k
2 votes
Accepted

Is there a male and female valve that is closed until connected together?

There are many, many different commercially-available designs of fluid connectors that shut off automatically when disconnected and open up when connected. They are available in plastic and metal, ...
niels nielsen's user avatar
2 votes
Accepted

What are the charge/power connector of restaurant order pagers / buzzers called?

The following pins appear to be pogo pins or spring loaded pins Below are example of pogo pins The following appear to be swage mount connectors Here is an example Reference: Mill-max How to pair ...
Mahendra Gunawardena's user avatar
1 vote

What is the standard connector on reusable whip cream dispensers?

The gas connection on the whipped cream dispenser is M22*2. Actually had to reach out to a Chinese manufacturer for that because GreatWhip didn't ever get back to me. I am going to be trying to find ...
BrewerJack's user avatar
1 vote
Accepted

What are the LENOVO YOGA 3 USB-like inlet 20V 2A wiring/signal/voltage specs?

The image is poorly focused and laptop name is not specific to identify model, but it appears to be a Lenovo YOGA 3 Pro, 6 pin USB/charging port. The USB port is dual purpose. USB and charging (20V). ...
StainlessSteelRat's user avatar
1 vote

What is the name used for this type of connectors?

Twin port connection. Usually for voltages under 25Vdc. It also has a restrictor edge to ensure it can only connect one way... the correct circuit designed way.
Rhodie's user avatar
  • 974
1 vote

Connector for sliding plate to rotating rod

Use a nut or threaded boss fixed or welded to the plate.
Solar Mike's user avatar
  • 15.6k
1 vote

How to create an airtight connection between Stainless Steel and PTFE?

A few design improvement notes: PTFE is not Nylon. I'll assume from here on out you really mean PTFE here, but it's better known as Teflon. Nylon would be done entirely differently. You can't just ...
Mark's user avatar
  • 5,333
1 vote

How to create an airtight connection between Stainless Steel and PTFE?

If you can modify the stainless steel prongs with groves or indentations to accept either O-rings or Compression brass or plastic fittings you would not need any adhesive! Plastic compression ...
kamran's user avatar
  • 22.2k
1 vote

I have an unidentified press-fit nut that I need to reproduce, can anyone tell me how to find this?

There's really not enough information to be certain, but the images seem to match TR Fastenings' "Self Clinch Non-Locking Mini Squeezed Nut" N.B. It also looks to have been improperly installed, as ...
Jonathan R Swift's user avatar
1 vote

Connecting gypsum plaster pieces without space between them

Use some steel channel and have the pieces slide in and out, but you will see that this type of board will suffer damage... The steel or aluminium channel is available at many stores...
Solar Mike's user avatar
  • 15.6k

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