By continuing to use this site, you agree to our use of cookies. Find out more
Forum sponsored by:
Forum sponsored by Allendale Jan 24th

cylinder boring

All Topics | Latest Posts

Search for:  in Thread Title in  
Philip Burley19/02/2020 17:54:04
avatar
164 forum posts
1 photos

cylinder boring.jpg

Philip Burley19/02/2020 17:56:31
avatar
164 forum posts
1 photos

a picture of my boring set up , with a monster keats type angle plate

Philip Burley19/02/2020 17:58:40
avatar
164 forum posts
1 photos

a pic of the set up to bore my red wing cylinder using a monster keats type angle plate

Baz19/02/2020 19:32:28
333 forum posts

Looks good to me, lovely Keats angle plate. Is the lathe a Bantam 1600?

Philip Burley19/02/2020 19:44:20
avatar
164 forum posts
1 photos

Its a Mk 1 Bantam . I bought the plate last week for £25 . nobody wanted it as it's too big and heavy for most lathes . I was going to use a between centres bar , but I couldnt see how to set it to get an exact to size bore with out a complicated adjustment bar . . and the Bantam doent have and bolt holes in the cross slide anyway . With a thick boring bar I think this should be OK , Takes ages though . 10 mins for one pass at my speeds !!

regards

the artfull-codger19/02/2020 19:47:44
avatar
249 forum posts

Looks like a genuine Keats Philip, made by exe engineering,I have the same model.they did a smaller one as well,I have a smaller one but not a Keats, it does the job but genuine keats are real quality.

Graham.

Mick B119/02/2020 20:54:21
1451 forum posts
77 photos

Here's a rather shaky video of what I did to the cylinder of my Murray's Hypocycloidal from the Polly Models kit.

Boring with fixed steady

It's a bit boring. Sorry...

Edited By Mick B1 on 19/02/2020 21:00:40

IanT19/02/2020 20:58:13
1447 forum posts
141 photos
Posted by the artfull-codger on 19/02/2020 19:47:44:

I have a smaller one but not a Keats, it does the job but genuine keats are real quality.

Graham.

I have an Asian "Keats" type plate that I purchased some time ago from one of the better known suppliers. It was to work on a small run of parts where I needed repeatable setting and used straight out the box. After the job, it got put away and (as it happened) I didn't use it again until late last year.

This time I needed to turn the bridge clamp over to increase it's holding diameter and was puzzled as to why I couldn't get the bolts back in. Turned out both bolts had been through drilled (and tapped) at about 5 degrees off upright and that the bridge casting had also been machined well off centre too.

Looking at it now, I can't understand why I didn't spot this on first use but I didn't. It's on the TUIT list. I will drill the clamp holes true and re-tap them a larger size, replacing the bolts. The bridge will also need to be squared up - a shaper job for this coming Summer when it's warmer. The base seems OK but I will also check that too.

So, morale of the story - check tools carefully on receipt and don't just assume they are right....mostly they are but not always...

Regards,

IanT

Steviegtr19/02/2020 22:29:58
avatar
840 forum posts
191 photos
Posted by Mick B1 on 19/02/2020 20:54:21:

Here's a rather shaky video of what I did to the cylinder of my Murray's Hypocycloidal from the Polly Models kit.

Boring with fixed steady

It's a bit boring. Sorry...

Edited By Mick B1 on 19/02/2020 21:00:40

Nice work Mick B1.

Steve.

Ian S C20/02/2020 10:59:10
avatar
7468 forum posts
230 photos

When I built an ALPHA type Stirling engine, I bored both cylinders at the same time, then I made the pistons and lapped them to the cylinders, I then divided the cylinders into two separated liners. In the end I had to lap the hot cylinder as it got a bit tight after 15 to 20 minutes running. The motor had water cooling but that didn't help much. It is now air cooled and will run as long as it has fuel. Note the ALPHA motor has equal size cylinders.

Ian S C

Ross Yoke ALPHA motordsc01351.jpg

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

Latest Forum Posts
Support Our Partners
Eccentric July 5 2018
cowells
Warco
Ausee.com.au
Allendale Electronics
ChesterUK
emcomachinetools
Eccentric Engineering
Subscription Offer

Latest "For Sale" Ads
Latest "Wanted" Ads
Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues

Social Media online

'Like' us on Facebook
Follow us on Facebook

Follow us on Twitter
 Twitter Logo

Pin us on Pinterest