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Making a weird connector

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Roger Hart07/05/2015 11:42:22
157 forum posts
31 photos

I bought a Peiffer vacuum pump. The electrical connector is definitely non-standard and anything Peiffer is v expensive. The connector has 8 x 1mm pins - easy enough to make/get female shells for these. The question is would it be possible to mould a low temperature plastic around the fitted shells to make a removable connector? Issues are - reasonable strength and not sticking permanently to the pump. Voltages are modest. Connector is 15.1mm ID about 15mm deep with straight slots but not sanely spaced - nor are the pins, so not an easy drilling job.

Andrew Johnston07/05/2015 12:00:02
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7061 forum posts
719 photos

It would help to post a picture; there are some pretty weird and wonderful industrial connectors out there. Not many companies (with the exception of automotive) use custom connectors.

Alternatively it shouldn't be that difficult to 3D print something that would work.

Andrew

pgk pgk07/05/2015 12:20:09
2661 forum posts
294 photos

2-part epoxy putty like milliput...?

john carruthers07/05/2015 12:43:10
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617 forum posts
180 photos

I would think it is a standard connector too, if you know a friendly electrical engineer it would save a fortune on 'small order' charges.
If you do end up making one try Polymorph plastic, mouldable at 63C, sets like nylon.

Vic07/05/2015 13:21:41
3453 forum posts
23 photos

Two part Polyurethane might do it as well.

Les Jones 107/05/2015 14:19:03
2292 forum posts
159 photos

I agree with Andrew. If a picture was posted it will be seen by a large number of people and one (Or more.) may recognise it and suggest a supplier.

Les.

john carruthers07/05/2015 16:26:11
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617 forum posts
180 photos

Not an 8 pin din is it? they come in various configurations.
**LINK**

Roger Hart07/05/2015 16:45:00
157 forum posts
31 photos

Here is a picture. Item is a turbomolecular pump which I don't want to mess up....

If there is a standard plug around I would be very grateful.

p1030512.jpg

The Merry Miller07/05/2015 17:04:27
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484 forum posts
97 photos

Roger,

Have a look at the range of 62GB connectors from Amphenol.

I used to use this series on military equipment in the '70s '80s and '90s.

Farnell do some of the range but there are also others who may do!

Len.P

Andrew Johnston07/05/2015 17:04:40
avatar
7061 forum posts
719 photos

Hmmmm, it looks like a variant of the circular MIL-DTL-38999 connectors. Unfortunately they come in hundreds, if not thousands, of variations according to pin count, pin layout, locking mechanism, material, EMC filters, keyway and so on, ad infinitum! Some of the larger electronics distributors (Farnell/Mouser/Digikey) stock some such connectors, but you're more likely to have to go to a specialist distributor. However, it would be worth having a browse on a manufacturer website, like Amphenol, to compare sizes and so on.

Andrew

Les Jones 107/05/2015 17:22:10
2292 forum posts
159 photos

Hi Roger,
Have a look at the connector on page 100 of this data sheet I found this connector on Farnell's website. Their order code is 2344399 It is expensive - £15.99 + VAT.

Les.

Roger Hart08/05/2015 06:38:42
157 forum posts
31 photos

Thank you all for the help and thanks especially to Les - I reckon you nailed it. After a close look with an eyeglass I found a part number on the connector but I would never have found it without your help.

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