Cross drill attachment – Super 7

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Hi Folks

I just finished making this attachment for my lathe. I cant take credit for the idea as I saw this by a chap called Steve Jordan?

Anyway, It looked like a neat versatile unit so I thought I would have a go myself. It worked out pretty cheap too as the unit was only 50 quid, the box was 4 quid and a set of cheap collets 25 quid.

Its obviously got its limitations but I think for small detail work it will be a valuable addition to the workshop.

Some pics and a youtube vid showing the result of a quick couple of tests

Carl

 

 

 

 

Edited By Die Hardenedbedway on 20/06/2020 18:34:17

Edited By Die Hardenedbedway on 20/06/2020 18:34:43

Edited By Neil Wyatt on 21/06/2020 12:06:48

[Die HardenedbedwayParticipant @diehardenedbedway41166]

[Grizzly bearParticipant @grizzlybear]

Very nice, that's a neat job. Does the drill motor run on 12v dc?

Lovely looking lathe.

Can you remove that chuck key before someone sees it.(I didn't see it ).

Bear..

[Nick Clarke 3Participant @nickclarke3]

I saw the chuck key – it went that way and is stuck in the doorframe

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Posted by Grizzly bear on 20/06/2020 19:11:09:

Very nice, that's a neat job. Does the drill motor run on 12v dc?

Lovely looking lathe.

Can you remove that chuck key before someone sees it.(I didn't see it ).

Bear..

Mains, though I dont know what the output is when it comes out

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Dont worry about the chuck key. The lathe cant turn with the dividing head attached

[Martin KyteParticipant @martinkyte99762]

I'm quite happy with the chuck key where it is. the chuck isn't going anywhere with the dividing head in place. John Wilding used to recommend tying a weight on the end of a bit of string attached to a chuck key to keep the backlash out of the dividing arrangement but then I guess it was a tongue in cheek remark of Bear's.

Handy attachment, how fast does it go?

regards Martin

[Die HardenedbedwayParticipant @diehardenedbedway41166]

@ Martin

3000-12000r/min

 

I presume the motor is designed for the wood routing cnc machines that people make ? At max chat it spins like billio and at low rpm it appears to have reasonable torque !

As for the chuck key. I get pulled up for it all over the place

 

 

 

 

Edited By Die Hardenedbedway on 21/06/2020 06:17:55

Edited By Die Hardenedbedway on 21/06/2020 06:18:48

Edited By Die Hardenedbedway on 21/06/2020 06:20:19

Edited By JasonB on 21/06/2020 10:23:05

[John HaineParticipant @johnhaine32865]

I'm not sure I would like the idea of that rotating fan on the opposite end of the motor to the chuck right in from of my tum!

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Posted by John Haine on 21/06/2020 07:20:08:

I'm not sure I would like the idea of that rotating fan on the opposite end of the motor to the chuck right in from of my tum!

Ive got a flat-ish tum so no interference

[John HaineParticipant @johnhaine32865]

Me too, but still. one could lean across to have a closer look…

But a neat little unit, rather like the QuickStep mill.

Edited By John Haine on 21/06/2020 09:26:39

[John HaineParticipant @johnhaine32865]

What are the bearings like on the motor? Are they likely to be reasonably robust to sideways milling forces?

[David CauntParticipant @davidcaunt67674]

Carl,

Is the kit you are referring to: 

I have been researching how to do this. It looks great

Will it fit and drill parallel to the head stock?

Edited By JasonB on 21/06/2020 20:26:43

[BufferParticipant @buffer]

Carl

I have just looked at Steve Jordans videos and I can't see one where he has done this. I did see some where he is using a power drill connected to a collet chuck but not what you have done. Is there any chance of putting a link to the correct video.

Thanks
Rich

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Posted by John Haine on 21/06/2020 09:52:23:

What are the bearings like on the motor? Are they likely to be reasonably robust to sideways milling forces?

Hi John, I have no idea is the honest answer. It appears to be well made and designed and manufactured for CNC milling ( Most likely MRD and plastics ? ) I think for ali and brasses, small detail work it will be more than adequate. I suspect it will protest more at bigger cuts on steel and SS however. But for the price, defo worth doing IMO.

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Posted by David Caunt on 21/06/2020 20:22:43:

Will it fit and drill parallel to the head stock?

Edited By JasonB on 21/06/2020 20:26:43

Yes

[not done it yetParticipant @notdoneityet]

I note Jason/Neil is/are doing his/their best to erase any reference to the ‘offending’ items.

Just one question: As the motor can operate at 100V DC, are the conductors, feeding the motor, covered with two layers of insulation? If not the motor will definitely not be approved – safety-wise – for use in the UK. I suspect it has no CE approval for that reason (and likely among others, as well).

Also it does not appear to be provided with any earthing protection. A veritable death trap IMO.

Edited By not done it yet on 22/06/2020 16:35:07

[Die HardenedbedwayParticipant @diehardenedbedway41166]

'I note Jason/Neil is/are doing his/their best to erase any reference to the ‘offending’ items'

?? are they the bosses ?

An electrician friend of mine says the voltage is classed as ELV ( extra low voltage ) and is non lethal. He said It would give you a zap but other than that its ok. I showed him some images of inside my box and how its wired. The mains going in is earthed but he mentioned belt and braces would be to earth the motor too which is what I will do.

[not done it yetParticipant @notdoneityet]

You are correct. Up to 120 volts DC – provided it is ripple free. I am surprised at that as DC, if it is nasty enough to give you a jolt, is likely to cause muscle contraction, preventing one from letting go of anything that is grasped. Would you guarantee that voltage is fully smoothed?

Edited By not done it yet on 22/06/2020 19:08:24

[Neil WyattModerator @neilwyatt]

Posted by Die Hardenedbedway on 22/06/2020 18:17:14:

'I note Jason/Neil is/are doing his/their best to erase any reference to the ‘offending’ items'

?? are they the bosses ?

Hi, I'm afraid we are…

We've had to make a change to the Code of Conduct http://www.model-engineer.co.uk/forums/postings.asp?th=166070

Thanks for being patient with us…

Neil

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Well, ive only been here two minutes and looks like Im already causing trouble !

Im just a guy with a lathe in a shed at the bottom of the garden trying new things. Not looking to make monetised 'how to' videos

Understood though.

[not done it yetParticipant @notdoneityet]

Nah, it’s not you causing the trouble. It is the free-loading advertisers and suppliers that are the problem.

Do you know of a completely honest reviewer? I only know of one and she was not provided with any more free gifts, for her to review, after she pointed out the warts as well as the better points (if there really were any – apart from the dirt-cheap price🙂 ).

[Die HardenedbedwayParticipant @diehardenedbedway41166]

Im not fully aware of the prob as have only been here for two ticks but if Its the same here as with other forums then yes its, a prob.

Honest reviewer haha , not a chance. In my job/ world I work in Im often asked to send people stuff for 'review' . I always refuse as I would rather have my products ( nothing to do with engineering ) gain good feedback on their own merits.

All good. I know the rules here now

[not done it yetParticipant @notdoneityet]

Honest reviewer haha , not a chance.

Honest, there was one! I’ll send you a link to the video. Items had ‘close enough’ angles for most but would not stand upright when checked with a square and easily dinged (from her being easily able to fettle the rough edges).

I reckon that likely as many as half (perhaps more?) of their reviewers are a). Not particularly precision machinists (a bit like me, ha ha!), b) Give a lot of these items away, or c). Never, use them after reviewing them ‘eulogistically’ because they are not really good enough for purpose.

I won’t buy anything from them that I couldn’t afford to throw away if it was faulty. I’ve still got the offending morse taper that wasn’t quite anywhere near right (rattled in the machine taper). Buy cheap, buy twice.🙂

PM arriving soon.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by not done it yet on 23/06/2020 05:36:54:

[…]

I won’t buy anything from them that I couldn’t afford to throw away if it was faulty. I’ve still got the offending morse taper that wasn’t quite anywhere near right (rattled in the machine taper).

.

So … as you haven’t thrown it away: Did you find a good use for it ?

MichaelG.

[Author]

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