By continuing to use this site, you agree to our use of cookies. Find out more

Member postings for AStroud

Here is a list of all the postings AStroud has made in our forums. Click on a thread name to jump to the thread.

Thread: BCA jigborer motor
19/12/2020 15:50:48

Mine came with a 1ph motor fitted (3kw !!). It had been fitted by someone drilling mounting holes in the column about 5 1/2" down from the top mounting holes and I am guessing they must be tapped. Spacers are used to align with the pad. Otherwise I would have thought an adaptor plate would suffice.

Edited By AStroud on 19/12/2020 15:51:05

Thread: My workshop improvements
19/12/2020 10:40:44

here's mine, seeing others makes me realise I should update the lighting

workshop2.jpg

Edited By AStroud on 19/12/2020 10:47:40

Thread: Stuck oil filter
09/07/2020 13:41:30

Here's what I did to remove a stubborn filter.

Put 2 jubilee clips over the filter body with their worm drives aligned and tightened up.

Found a piece of pipe with id the same as the jubilee clip bands' od. In one end of the pipe cross drilled for a tommy bar. On the other end notched out a circular segment of length such that the clips' worm drives would fit into it. Put the pipe onto the filter with the notch around the worm drives and then used a tommy bar to unscrew the filter.

Thread: MEM Corliss progress
12/06/2020 09:05:19

Hi Mark

It is a Mk 111 about 35 years old, serial number is xxxxxE so in imperial. I managed to get it in good condition, looks like it is on its original belt and most importantly with some accessories including collets. I love it, only wish it was a bit bigger as we do with most of our machine tools.

Andrew

11/06/2020 13:55:53

Thanks for the comments.

yes, one of my cheats on the MRM drawings, the flywheel is from a billet. Stretched my S7 and BCA to accommodate it but I am happy how it has turned out. For the first time I finish bored for the crankshaft and have been rewarded for what looks like a wobble free flywheel.

Andrew

11/06/2020 09:12:16

First set out of the main assemblies of my Corliss, based on the MEM drawings

mem corliss4.jpg

Thread: Size of groove for O rings
05/08/2019 17:36:19

according to my James Walker design notes for O rings

for 0.125" cross section dia o ring

groove width = 0.159" - 0.164"

max piston groove dia = min cylinder dia minus 2 x (0.110" - 0.114" )

min piston groove dia = max cylinder dia minus 2 x (0.110" - 0.114" )

The design notes are available on the net and are well worth hunting down.

Andrew

Edited By AStroud on 05/08/2019 17:38:05

Thread: What mills have you had
21/07/2019 12:08:32

A BCA Mk 3 if it qualifies as a mill. I have it because of space limitations and it is a joy to use. Downside it is limited to small work but it suits my projects.

Andrew

Thread: BCA Jig Borer MK3
21/10/2018 16:10:03

Yes I do, but it is a reprint purchased from the lathes.co.uk website, quite pricey and a bit light in information but if you are a BCA enthusiast a must have I think.

Andrew

21/10/2018 14:41:23

The spring keeps the belt at the correct tension, there is a clear instruction in the instruction book about adjusting the tension arm to the correct fixed length so the spring is compressed to keep the belt at the correct tension.

Andrew

21/10/2018 12:32:11

Hi William

I have a BCA Mk 111 and have just removed the spring , these are the measurements

L = 2.75 ins

OD = 1.03 ins

wire dia = 0.103 ins

Pic:

bca mk 111 spring.jpg

 

Hope this helps, Andrew

Edited By Andrew Stroud on 21/10/2018 12:34:54

Thread: O ring Pistons cylinder Clearance?
25/09/2018 20:17:18

Hi Robert

I suggest you download a seal manufacturer's design guide where you will find advice on the design of housings for seals, including grooves for O rings. I have a guide from James Walker , would not be without it.

Andrew

Thread: Knurling
06/11/2012 20:12:33

Thanks for all the comments, some good advice, I hadn't thought about looking in Machinery's, I see there is a lot there.

I am applying pressure above and below the stock, my knurling tool does have a graduated adjusting screw so I can set the depth cut, but I think doing by feel and inspection is probably the best way. I will raid the scrap box and start practicing.

03/11/2012 12:27:53

I would like general advice please on how to knurl, having just purchased a caliper type tool with a diamond pattern for my S7. I understand the need to use slow speed and coolant but what I am not sure about is the number of passes to make.

One book talks about not cutting too deeply at the first pass and use a 10 thou cut, but if you want to make a deeper knurl am I correct in thinking the tool must be kept in contact with the work and not wound clear before increasing the cut ? Otherwise I cannot see how the tool engages exactly with the cut made in the first pass. Is it advisable to knurl with only 1 pass all the time ?

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

Support Our Partners
Warco
EngineDIY
ChesterUK
cowells
Eccentric July 5 2018
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