Here is a list of all the postings john carruthers has made in our forums. Click on a thread name to jump to the thread.
|Thread: Grinding flat, not curved, relief angles on HSS lathe tools|
A belt sander will flatten a slightly curved tool face, if you need to, or an angle grinder.
|Thread: steambox for ply|
We used a large oil drum to bend 2x 8mm marine ply for shields, pushed steam from a wall paper stripper in one hole and out the other.
|Thread: Metal combinations for a plain bearing|
to add to the mix; how about miniature split bearings that could be tightened as required? could be as simple as a V and a plate?
|Thread: Clean hands?|
As kids we always came home covered in beach tar, butter would dissolve it in no time .
|Thread: Brass bar , 55 mm - ?supplier|
Trepan them from sheet?
|Thread: Superglue for holding workpieces|
Good carpet tape will take light cuts. I've used it for wood turning as well as metal, no porblems.
|Thread: Telescope project|
|Thread: Precision diameters|
Before testing optics I let the temperature of the work piece equalise for 30 minutes in a bucket of water that's been in the room for a day or so, might speed up testing for you?
|Thread: drilling a 20mmx 300mm Hole in cast iron|
How about regrinding the carbide end of a cheap 20mm masonry drill to suit CI ?
Edited By john carruthers on 11/05/2018 08:22:22
|Thread: Removing Aluminium From a Cutter|
I use Pound shop oven cleaner to remove ally, usually an overnight soak shifts it.
|Thread: sundial drawings|
I use 'Shadows' to design simple dials.(used to be free, now comercial)
|Thread: Department of Work and Pensions|
4/- per week, 16/- per month, it all adds up you know
|Thread: Ball bearings|
We have purchased several sets of bearings from Arc, some for machine use, some for light duties in telescope mounts, no problems..
|Thread: What did you do Today 2018|
B&Q, yes, my bro-in-law works the a local store.
|Thread: Scrap yards|
At my favourite yard they let me look in the bins and pull out likely treasure.
|Thread: Magnetic Radiators|
Rad and True Rad ?
|Thread: Thechnical issue regarding plaster.|
Can you get hold of some AFP? (acrylic flexible plaster), not cheap, but as it's a small area it shouldn't cost the earth.
|Thread: Microscope rack and pinion|
Edited By john carruthers on 23/03/2018 08:33:48
|Thread: Trouble finding brass H and I columbs and beams|
Try a glazing supplier, we used a lot of brass H and U for stained glass, as an alternative to lead cambs.
|Thread: Telescope Laser Collimator|
Only 3 !!?
Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!
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.