Replacement Knobs, Feet and Fittings for Test Equipment

[MarkF]

Raspberry Pi 3B+ case with V-rail mounting for 3D printers.




I used #4 x 1/2" wood screws.

[MarkF]

Replacement adapter shell for a Fluke Networks CableIQ™ Qualification Tester:

The model was developed in collaboration with blog member @pnr to replace
a shell with broken tabs.  Development of the CAD model can be seen here.

 

 

 

[dazz1]

Hi
Attached are the files needed to 3D print a replacement foot for a 19" Wiltron enclosure.

Printed with a Prusa Mk3si in PETG.  0.4mm nozzle.

Note that the foot is printed on an angle for increased strength.

[madao]

Tektronix 500 serie  rubber foot replacement.

For unit as like  556, 567, 545B, 547
Old is getting to be corrosive bzw brittle.

[jeff.truck]

Tektronix 7000 Series Plug-In Edge Guide.

Sorry if I have the incorrect name for the actual part.  If you have a 7000 series plug in the part usage should become very apparent.  I've purchased a number of plug-ins for which this piece was damaged.  Sometimes a small chip, sometimes a very ugly crack.   I've found that the best results in printing are when the two halves are printed side-by-side and I use some super glue to weld the two pieces together.   

https://www.printables.com/model/1639060-tektronix-7000-series-plugin-edge-guide

I've modified the original design (V2) to match those four holes at the top that I believe serve as channels for some coaxial connectors.  Alas I have no plug-ins that utilize this feature.

[BlownUpCapacitor]

Replacement Switch Contact Holder

The switches in the push button Tek DMMs for TM plug-ins always break. The most common failure mode is the switch stopper at the end breaking off and the switch comes out too far. So I designed and 3D printed a replacement.

Just change the .txt to .stl and it should work.

WARNING: You may notice that the insulators do not alternate on my design, that is so that it is easier to 3D print. However, the original design did this alternating thing to better insulate the spring contacts from each other. Mine omits this, and so would make it less suitable for high voltages. But for low voltage stuff it should be fine.

 SwitchContactHolder.txt (67.86 kB - downloaded 14 times.)

[FordRanger1998]

Might anyone have a spare carry handle for my HP/Agilent 54825A / 548xx Oscilloscope, they would be willing to sell. Thanks in advance.

[scopeman]

I posted these originally in the Projects section for the long in the tooth TDS3K scopes but this might be a better place for the STEP files for 3D printing. The OEM boards should fit in the 3D prints incase you have cracked or broken one or just print the top side if you want to just fill the slot.

All parts were printed out of Bambu Lab PETG HF on the X1C for my prototypes but PCTG might be a better option. ABS is also a possibility. All of the models print as is, but you may need to tweak for your printer. It took a fair amount of iteration to get it just right. The snap on top part for the soldering fixture prints top side down and does need supports. The part for the programmer clamp prints top side down with supports under the fake IC notch. None of the other parts need support.

The related PCB files and set of instructions on use can be found here: (No Tek EEPROM data will be found here, you have to find that yourself!)
https://www.eevblog.com/forum/projects/tektronix-tds3000-oscilloscope-modules-tds3uam/msg6231585/#msg6231585

Since the project involves both electronics, 3D printing and replacement parts it is kind of hard to define where they should go. I thought that the two locations would make sure that people can find them. In any event the files are small and won't take up much space on the EEVBlog server.

Thanks Dave for all you do and allowing us to have create this great community and save old test gear from the landfill!

Scopeman

P.S. I have some more TDS3K stuff I am working on. More in front of the boob tube with Alibre Design and a pair of calipers and a scope in pieces .

Question for the group:

Is there any interest in creating a 3D model of the TDS3BAT housing?

It may not be exactly the same as the latches might be tricky. I only have access to the original TDS3BAT NiCAD one, not the TDS3BATB (that was recalled) or the later TDS3BATC. Is there anyone that has interest in creating a LiON charger for such a venture (maybe using 18650's) as I am not sure that I have the necessary skill for such a task?

In addition, if anyone has made a 3D model of the female connector that is in the TDS3BAT or has suggestions for the female connector (flag terminal?) that would be a great help.

 I think properly mechanically locating the connector is going to be one of the biggest challenges now that I think about it. 

It seems that even dead TDS3BAT just to get the housing bring $$ on evilBay. Which is crazy for now going on 20+ year old scopes.

[d-el]

I'm looking for a 3D model of the ventilation grille for the Kikusui PLZ334W electronic load. I came across it somewhere, but I can't find it.

[TERRA Operative]

I made some 34172B Calibration Short / 34171B Input Terminal Block housings to suit 19mm, and also a 22mm version (not offered by Keysight that I saw) so you can make your own shorts and plugin harnesses on the cheap.

They are designed to be used with Staubli type SA400, part no. 22.1050 banana plugs, and an M4 threaded insert with OD of 6mm and length of 8mm that gets superglued or epoxied into place in the lid.

I had them resin printed in grey at JLCPCB (no affiliation) and they came out great.

[scopeman]

Here is another simple 3D Print for the Tek TDS3K series. This is the probe box that may be missing from your instrument that fits in the rear battery compartment.
I used PETG HF 0.4mm extruder. The part is 288mm long so you might have to print it diagonally as I did or find a friend that has a large enough bed.

The zip contains a STEP and a 3mf file.

Enjoy!

Sam
W3OHM
Scopeman

[d-el]

Are you wanting to replace a broken one?
Draw a new model from scratch?

Unfortunately, I don't have a grill; they sent me a device with a part already missing.

[d-el]

  1)  Take a better photo with a ruler for scaling.  (As perpendicular as possible)

Adding a photo.

[d-el]

And I will need the overall depth.

Overall depth 15mm.

[d-el]

Looks like it. I'll do a quick print and check.

UPD
While looking for a photo of the inside, I found this:
I understand there's a slot for inserting a dust filter.
https://www.ebay.com/itm/336430303115

[bdbbdb]

Here are two contributions:

- Back feet for the SR620, which attach to the body with a single 6-32 3/16" screw each
- Power button for the 5370B. Friction fits to the stem of the switch (in my case a NE18 2U EE 6AMP, DigiKey p/n CKN10845-ND, which should be close to the original).

Fusion3D source files included if you want to modify them at all. Enjoy.

[MarkF]

Replacement grille for the Kikusui PLZ334W Electronic Load.

Development of the CAD model can be seen here.

 

 

[TheDefpom]

Replacement switch cap for HP/Agilent/Keysight 3458A

https://www.thingiverse.com/thing:7341129

[WFK]

Hi Gandalf_Sr!
Lost mine original adapter. A new one costs more than the U1173B! So is there a STL download provided in thingiverse or a similar platform for your replacement of the U1179A or can you please provide a link?
Thanks a lot in advance.

[jjp8775]

I am looking for the sensitivity knob for a HP 3580A  spectrum analyzer. 612-327-3490  joe

[matthieu.e]

Hi,

Here is the potentiometer knob file for the Sorensen power supply I made to repait mine.