The Workshop Progress Thread (2016)

[Mike LightfootParticipant @mikelightfoot72419]

Not much but it's a start front smoke box ring for my super simplex

[john carruthersParticipant @johncarruthers46255]

…and smaller lathes make tiny lathes, so on ad infinitum…

[OuBallieParticipant @ouballie]

Screwcutting for the first time!

Why oh why have I been funking doing it for so long!?

Only aluminium, but still a milestone for me.

Geoff – Now for some Acme threads.

[MWParticipant @mw27036]

Posted by john carruthers on 23/10/2016 08:58:19:

…and smaller lathes make tiny lathes, so on ad infinitum…

Very classy, this is coming along very nicely, keep up the good work!

Gets any smaller you'll need tweezers and a microscope to see what you're doing! 

Michael W

Edited By Michael Walters on 23/10/2016 12:51:48

[JasonBModerator @jasonb]

I cut and pickled a bit of 25×50 black bar on Tuesday evening, last night I marked it out.

Then drilled a few holes in it

Then just cut through the edges where the he holes were kept back from teh edge and all the bits just dropped out. Use a 1/4" stub drill at 0.250 spacing. No sign of it moving

[martin perman 1Participant @martinperman1]

Jason,

What are you making now.

Martin P

[John Stevenson 1Participant @johnstevenson1]

It's a crank for something.

[JasonBModerator @jasonb]

Yep crank for the R&H BPR that I have ben posting photos of earlier in the thread. The two bits at the end will have ctr drilled holes for the pin then eventually be cut off and turned as part of the main shaft.

[JasonBModerator @jasonb]

Some more progress on the Crankshaft

After roughing down the shaft to reduce the amount of unbalanced metal the crankpin was turned using the ctr holes in the

legs left at either end.

The legs were then sawn off and the main shaft turned

I worked out a few co-ordinates in Alibre to rough out the oval section of the webs

Just some hand work needed to blend things together, keyways have also been done.

Edited By JasonB on 30/10/2016 17:04:29

[Roderick JenkinsParticipant @roderickjenkins93242]

Living on the edge today. I've taken the plunge to convert my drill to 3 phase VFD, via some EBAY purchases. The 3 phase motor has 19mm shaft instead of the 16mm on the original motor, so the motor pulley needs boring out. This was the only way I could think of to hold it. Precarious or what? And it's an interrupted cut because of the key way.

Remarkably drama free . Pulley is CI.

Inverter was a S/H industrial cabinet mounting unit, pre-programmed and wired to the remote. I've installed it in a tin box from IKEA mounted above head height.

The remote unit replaces the original ON / Estop

Motor appears to run at 900rpm at 50HZ and the inverter goes from 0-60HZ. Top speed is slightly less than before ( 2066 rather than 2580) but I can put a 1/2" drill through steel with the pulleys left on the highest speed so torque is adequate at the lower speeds. I use the Pillar tool for small drills anyway. So, dead chuffed.

And, further to previous discussions: The inverter doesn't trip the RCD . However, with the drill powered up, I switched on the mill – lights out . Seems the earth leakage is adding up but I can live with that – I just have to remember not to switch them both on during Strictly.

Cheers,

Rod

[martin perman 1Participant @martinperman1]

Rod,

Make sure the cabinet is well ventilated as inverters create a lot of heat and when they get hot they pack up.

Martin P

[Roderick JenkinsParticipant @roderickjenkins93242]

Martin,

Thanks for the heads up. Half the unit is heat sink but I'll keep an eye on it.

Cheers,

Rod

[martin perman 1Participant @martinperman1]

We use Siemens inverters at work, they are in control boxes with fans pulling air through the box, if the fan packs up and is not noticed the inverters cook which then kills them.

Martin P

[Brian HParticipant @brianh50089]

My workshop contribution was to take delivery of a reversing switch for my Boxford AUD and an on/off switch for the coolant motor.

They have both now been fitted to a plate that was used to blank off some of the 3 phase electical equipment when the lathe was converted to single phase sometime before I bought the lathe.

I'll have a play with an AVO before connecting anything to the mains, just to see what switches what.

If I'm not too confident after that I'll call in a professional.

[Neil WyattModerator @neilwyatt]

Nice installation, Rod. Can you point me at that box? Is it a household safe?

[Roderick JenkinsParticipant @roderickjenkins93242]

Lixhult

[Roderick JenkinsParticipant @roderickjenkins93242]

Forgot to mention: I was looking for a piece of scrap to make a 19mm plug gauge. A dog end of bright drawn 3/4" mild steel was the usual 2 thou undersized – exactly 19.00mm

[Neil WyattModerator @neilwyatt]

I'll look for that next time I'm in Ikea. Do people really use those to keep handbags and toys in?

Easy to fit a small 240V fan in.

[John Stevenson 1Participant @johnstevenson1]

They do a bigger one at 350mm x 350mm for £19.

Ideal for a CNC control box, as Neil says fit a fan and a set of drivers and it'd all neat and out the way.

[Steve PaveyParticipant @stevepavey65865]

Following on from Rod's post I too bought a (Lenze) vfd from eBay to run my shaper:

My box was a secondhand enclosure from the local small-ads:

For cooling I used a 12v computer fan running off a power supply liberated from an old router:

The inverter was from eBay, very cheap but it came with the incorrect keypad, so I have no way of setting the parameters. It seems to run the shaper motor ok but time will tell. However, if I could find someone willing to lend me a Lenze emz8201bb keypad for a short while….

[mick70Participant @mick70]

got start made on making jig for putting slits in ml6 collets rather than slitting disc in grinder.

drawing is very rough idea and will change as i start.

[John HinkleyParticipant @johnhinkley26699]

It's taken a long time, but today I finally got around to screwing together my boring -facing head. It works as expected and I am indebted to Graham Meek for the inspiration to start, let alone finish this project.

In use, the feed wheels and the striker screws could obviously benefit from hardening. One day I'll take it apart and have them done. (Unfortunately, the terms of my house lease preclude the storage and /or use of bottled gas on the premises.)

Now, perhaps I can get on with the Worden grinder kit that arrived the other day………

John

[NJHParticipant @njh]

Nice looking job John – very much in the Graham Meek style!

I would be very interested to hear your progress with the Worden – I have been vaguely contemplating one myself for some time.

Regards

Norman

[John HinkleyParticipant @johnhinkley26699]

Thanks, Norman. Re: the Worden – I'll post progress in an album, though don't expect that progress to be very swift. I am intending to convert it to all-metric as I don't particularly want to have to purchase all the extra taps and dies to accommodate the (six) imperial threads used in addition to the metric ones already incorporated. I am re-drawing it all as I go, too. Additionally, I've made alterations to the traverse mechanism, although that also is in CAD form only at the moment. Watch this space, or one very similar ………

John

[mechman48Participant @mechman48]

JasonB

What's happened to all the pics, what I could see on Tues. no longer viewable… Just a box with a 'x' in it have you moved them… or is it my pc… I can view the 'Stuart light' & Ruston Hornsby videos but all your pics have gone elsewhere…?

George

[Author]

Posts