[Project 3] Dickson T1 Tool Holder

[JasonBModerator @jasonb]

Those insert cutters won't work as you need to get down into the bottom of the Vee, you need something that goes almost to a point if using an angled cutter.

A few suggested a shaper for these types of jobs, this popped up on my Youtube today which you may enjoy.

Edited By JasonB on 24/05/2020 19:29:13

[Lee Jones 6Participant @leejones6]

Actually the bottom of the 'v's are quite blunt:

That cutter with those inserts was just a quickly Googled example.

I'm sure you can pick-up sharper cutters.

[JasonBModerator @jasonb]

Lee that cutter will swing an inverted flat ended cone about 25mm across, So when used to cut the larger side of the Vee it will completely remove the smaller side, you need something that will cut like the red line, maybe 1mm at the bottom.

[Lee Jones 6Participant @leejones6]

Turn the work 45 degrees – put it on its side.

[John BaronParticipant @johnbaron31275]

Hi Lee, Guys,

A 90 degree HSS or Carbide countersink will easily cut those "V" slots. The reason I said to take it easy with the cut, is that the shaft size on some of the counter sink bits may only be 1/4" diameter. As are some of mine. I have a nice six flute one that would do the job at full depth because it is on a 20 mm shank and is only 25 mm diameter. I've got that one in a plastic handle and use it for deburring holes.

[Lee Jones 6Participant @leejones6]

Posted by JasonB on 22/05/2020 12:43:18:

Posted by Lee Jones 6 on 22/05/2020 08:21:14:

How does 0.1mm over 480mm sound?

As nobody else has answered from last night I get about 1/10th of that in X&Y eg 0.003mm in 140mm on a Chinese machine.

What do you measure with to gain that level of accuracy?

I tried to use a 10ths/inch indicator which measures 6 10ths/inch over 480mm.

Although it's hard with my setup as it's not 100% rigid. Might end up making something else.

[JasonBModerator @jasonb]

I swing a lever DTI in a collet chuck at 70mm radius only a 0.01mm one but easy to see that the needle only moves part of a division

[Lee Jones 6Participant @leejones6]

Ha, that's cheating. ​​​​​​

Do you have a picture of your setup/shaft (no, I will not rephrase )?

[JasonBModerator @jasonb]

[Michael GilliganParticipant @michaelgilligan61133]

Posted by JasonB on 24/05/2020 19:26:47:

.

A few suggested a shaper for these types of jobs, this popped up on my Youtube today which you may enjoy.

.

Missed that, yesterday, Jason

The opening ‘titles’ are sheer joy …

I shall watch it with due reverence, later.

MichaelG.

[Lee Jones 6Participant @leejones6]

Ah, so you have a bought holder.

Maybe that'll work better than my janky Heath Robinson setup.

[MeunierParticipant @meunier]

Following on from Jason's shaper video which I found most interesting was this automotive manufacturing video from 2008. Particularly liked the crankshaft forging part starting at 8:08 (can you guess yet what this lump will become ? )
DaveD

The interesting parts start at 2:00 in

Edited By Meunier on 26/09/2020 16:04:33

[MeunierParticipant @meunier]

Complete fail ! here is the missing link to the video mentioned…

DaveD

[Lee Jones 6Participant @leejones6]

Posted by Lee Jones 6 on 26/09/2020 08:28:02:

Ah, so you have a bought holder.

Maybe that'll work better than my janky Heath Robinson setup.

Received mine today from 'you know who'. It's soooo tiny!

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