⚙ Model Engineering in the UK

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Exam question assistance please

Could someone tell me the correct answer to this test question please. Sorry about the poor picture quality. Question i...
70 comments posted 18yrs
posted by phill
70 comments posted 18yrs posted by phill

Machining Nylon

Hello Guys, What is the best way to get a smooth finish on nylon bar. I'm machinin down to 32mm diameter, but need a po...
13 comments posted 18yrs
posted by DR_G.300akp
13 comments posted 18yrs posted by DR_G.300akp

questions about Clark CL500M lathe/miller

Hi I have recently brought a Clark CL500M combined lathe and miller (yes I realise it has some limitations, but its onl...
2 comments posted 18yrs
posted by mike
2 comments posted 18yrs posted by mike

De-magnetising

I have managed to slightly magnetise a rather expensive digital caliper, despite the metal parts being stainless steel,...
12 comments posted 18yrs
posted by clifford.coggin
12 comments posted 18yrs posted by clifford.coggin

BCA ER20 spindle

I'm thinking of making a new spindle for my BCA milling machine, to accept ER20 collets. Would anyone be interested in...
2 comments posted 18yrs
posted by zenadsl6186
2 comments posted 18yrs posted by zenadsl6186

Headstock centre for Harrison 140

Is it possible to buy headstock centers for a Harrison 140?
1 comments posted 18yrs
posted by imagedude1
1 comments posted 18yrs posted by imagedude1

What is the proper name for...

...the clamping arrangement that myford use to lock the tailstock barrel. Sort of split cotter thing. TIA Bob
2 comments posted 18yrs
posted by nospam
2 comments posted 18yrs posted by nospam

Runout on ER25Collet??

Guys, As mentioned in a previous thread, I decided to have a go at th Chronos Shobha ER25 Collet Chuck and Vertex colle...
18 comments posted 18yrs
posted by DR_G.2zucon
18 comments posted 18yrs posted by DR_G.2zucon

Part built Rob Roy for sale

I selling my dads part built 3 1/2" Rob Roy. Full set of castings, boiler built, chassis started. Can email photos. We...
1 comments posted 18yrs
posted by l.s.griffiths
1 comments posted 18yrs posted by l.s.griffiths

5c collett 5/8 16 mm

Hello, I do have a set of 16 imperial 5C colletts, now I want to get hold of a few metric. 5/8 is 15,9 mm is it ok to u...
1 comments posted 18yrs
posted by knut.ped
1 comments posted 18yrs posted by knut.ped

Any opinions on HBM chucks....?

Hi all. Anyone have any opinions, good or bad, on HBM brand chucks ? Was thinking of buying one from RDGTools for my My...
4 comments posted 18yrs
posted by youra.turceninoff
4 comments posted 18yrs posted by youra.turceninoff

tiny brush springs

Morning all, Does anyone know of a supplier of the small (berilium-copper?) springs used to push little DC electric mot...
3 comments posted 18yrs
posted by david.sanderson
3 comments posted 18yrs posted by david.sanderson

Small slitting saws

Do they make small, about 10mm dia, slitting saws, or is there something else like that with a different name? Any idea...
4 comments posted 18yrs
posted by zenadsl6186
4 comments posted 18yrs posted by zenadsl6186

Workshop floor - Wood or concrete

I am looking to build a workshop, but I am uncertain if I will build a concrete base, with 3 courses of bricks then a w...
35 comments posted 18yrs
posted by mark_remove_
35 comments posted 18yrs posted by mark_remove_