Recent content by scoop

Hi Everyone This sort of process has been used for a long while in gemstone faceting using stuff called dop wax to hold uncut stones onto the holders called,funnily enough,dops.More information might be gleaned from such sites on the web. regards steve c

Hello all The recent activity on this thread has got me interested in these plans again after a long time in the drawer,little did I think that just asking for a simple dimension would generate so much enthusiasm for a cure.Having no ability or access to cad systems or the like means that to...

Mr Bogs Never did hear from this bloke about the dimension,to be honest I had forgotten all about this plan.As is has been said, it should not be too difficult to calculate the size but that does really negate the point of buying the plan in the first place as if he had just sent a blank piece...

pretty sure I have used .4335-26 on some old rolls royce engine castings from the 50's and 60's.The RR Avon springs to mind.They were used as an interference fit for steel studs in light alloy castings such as magnesium gearboxes. happy days Regards Steve C

when I measure awkward bores on a lathe I use a lever type DTI in a hight stand and stand it on the cross slide and find the highest part of the bore and zero the DTI then transfer to a surface plate and measure the hight with a tower gauge.Then do the same with the lowest part of the bore and...

Are the 3 jaws in the same chuck slots that they were in when new?Each of the three jaws has a number on it to let you know which order to insert them into the scroll,but some chucks do not have an indication as to which slot the number one jaw should go in.Try each of the three slots with jaw...

it's just an optical illusion,foam is probably only 2mm thick max.does look like a much thicker depth though.

you can also try ALOCROM which is a chemical finish that gives a golden colour.Needs no electrical current to apply just suspend it in the solution for a while.Don't know how to get hold of a smallish ammount for home use though,the aerospace company i used to work for bought it in 25 ltr drums...

after applying the masking tape give the area a thin coat of clear lacquer(make sure it is compatable with the paint you will be using for the final colour).Thia lacquer will seal the tiny gaps that cause the bleeding and if any clear lacquer does seep under the tape it will not show.After...

seeing as most of the jokes seem to have animal theme this week,here is a canine one. Q. what do you call a dog with no tongue? A. Smelly bollocks. Please excuse my french Steve.

Hi Babba these cutters will not plunge cut they will need a clearance hole or ramping in.The 14mm depth of cut is the max cut in one pass owing to tip length,but the cutter will cut to 39mm deep if required.The finish obtained in side cutting using these tools is fairly good if you only go down...

Don't forget that if you get a chattered finish using a form or parting type tool it can be a saviour to just put on a small cut with the chuck stationary and then just turn the chuck by hand to get under the chatter to finish the last couple of thousands. saved me a few times now as removing...

We used "Rubert blocks" for years until hand held surtronic machines were available.There must be thousands of sets of these kicking about in old workshops.They still have a website at... www.Rubert.co.uk Different sets for different machining operations,although I seldom see any indication of...

I think that in an ideal world without friction or other mechanical losses you could work this problem out,but owing to all the variables involved such as the materials used for the studding and the nut the size of the contact area between the nut and the surface it sits against and the use of...

As dovetail cutters are normally straight toothed they cut with a very harsh intermittent action and hence calculating a speed/feed combination based on normal helical type milling cutters can give unsuitable results.For this reason I always use my eyes and ears to determine the speeds and feeds...