TR10 x 2 Trapezoidal Metric right hand tap

[David CambridgeParticipant @davidcambridge45658]

Hi All

I’m trying to find a first cut TR10 x 2 Trapezoidal Metric right hand tap.

I’ve found some on eBay, but I have to wait over a month or so for it to arrive.

I’ve found some that are horrifically expensive in the UK (£ hundreds).

I’ve found one in the UK for a reasonable price and delivery time, but they seem to have run off with my money, and won’t answer phone calls or email. (They are not one of the usual suppliers that we mention on this forum.)

If anyone has any ideas were I can buy them in the UK I’d be grateful!

Thanks

David

[David CambridgeParticipant @davidcambridge45658]

TR10 x 2 Trapezoidal Metric right hand tap

[OldironParticipant @oldiron]

Hi David. Sorry cannot help with the tap but it may help others if you post the name of the supplier that has done a runner. regards

[David CambridgeParticipant @davidcambridge45658]

Hi Oldiron

For now I will give them the benefit of the doubt – just in case there is a valid reason as you never know. Maybe in a few months time when it's beyond doubt that I've been scammed I will reveal all!

David

[JasonBModerator @jasonb]

Is £80 from Tracy tools too expensive?

Edited By JasonB on 14/08/2017 13:03:55

[David CambridgeParticipant @davidcambridge45658]

Thanks Jason

Yes, I have spotted the Tracy tools tap but I can’t justify the cost to myself – especially If I snap it!

The Chinese eBay variants are about £10 – which is great. The one that didn't turn up was about £30, which is expensive but OK (delivery failure not withstanding!)

David

[SteveIParticipant @stevei]

David,

Is it possible to get the work piece into the lathe chuck and screw cut it? There are trapezoidal (and ACME) inserts available and a standard internal screw cutting tool with e.g. Ø6mm for 0"06" size inserts or Ø8mm for "08" size insert would just be ok I think on min bore size. Of course it depends how deep the job is but you would at least be able to use that internal screw cutting tool for other jobs. Alternatively there are solid carbide tools that are less adaptable (1 thread type only per bar) for a little less than tracy tools price. Other option is grind up your own cutting tool.

I am very interested in the specifics of your job and your choice of solution as I have similar jobs on the to do list and am leaning towards screw cutting and investing in the tooling based on inserts and reusing the bars for that rather than making or buying taps or grinding up my own tools.

Steve

[David CambridgeParticipant @davidcambridge45658]

Thanks Steve

The goal of the job is to make a system for moving my camera for some time lapse, but as you will see from the thread I've just started (Fate telling me not to do something) I think I'm going to give up!

David

[Michael GilliganParticipant @michaelgilligan61133]

David,

Have you looked at "Marchant Dice" ?

They have an online shop and a wide selection of products

**LINK**

https://www.worldofcnc.com/collections/trapezoidal

[they also have an ebay store which sometimes has useful-size offcuts]

Last time I bought some leadscrew from them it arrived very well packaged.

MichaelG.

[David CambridgeParticipant @davidcambridge45658]

Thanks Michael

[Neil WyattModerator @neilwyatt]

In a light duty application like moving a camera, what advantage does an acme/square/buttress thread offer over ordinary precision studding? My 3D printer happily prints layers 4-thou thick with ordinary M5 studding and nuts.

Neil

[David CambridgeParticipant @davidcambridge45658]

I should perhaps explain. The real purpose of the project is to find an excuse to mess around with lead screws. In other words, vastly over engineered because I fancy doing it I probably don’t need to say anymore than that to justify it!

David

Edited By David Cambridge on 17/08/2017 19:42:15

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