Member postings for sean logie

I've been trying different styles of grind on HSS with some success which is persuading me to stick with HSS more than inserts for two reasons ...better finish and cheaper ,I'll still use inserts for any large removal of material .

Is it true that you can make HSS too sharp on the cutting edge ?.... I've tried straight off the grinder and then ground and honed and I have to say that for me straight off the grinder (no honing ) seems to last longer ,not as nice of a finish though .

Sean

Anyone have any experience with these

Kennedy 331-206 Digital Vernier Caliper 150mm

Thanks everyone for your input ,I have ground HSS tools with some success .My biggest problem is that i have quite a bit of steel round stock in various diameters i just don't know what kind of steel they are. Up to now a lot of it seems quite hard (a lot of the material was sourced from a distillery and was used for making shafts for elevator rollers and the like, so I'm assuming that's why it appears to be tough stuff .) I have trouble sometimes with HSS in that the cutting edge flattens ,gets a tad frustrating and that's when i turn to carbide inserts . Hss does give the better finish on both steel and aluminium IMO .

Sean

Found these as well,my kinda price , I still need to learn how to put a nice grind on a piece of HSS ,I'm getting there ...slowly .

http://www.ebay.co.uk/itm/10Pcs-17-Types-Carbide-Tips-Inserts-Blade-Cutter-External-Turning-Tool-With-Box-/132048087689?var=&hash=item1ebeadea89:m:mUzTvGO176d6vZ1BQP4yjGg

Thanks for your help Paul ..

Sean

Which do you use for your tooling . I have a few bits ,some work better than others .Unfortunately there's no name on any of them .I guess what I'm asking is ,any recommendations on what to get . I'm nearly running out of my freebie carbide inserts lol... cnmg 432 are way too expensive!! for my playing about on the Fortis.

Sean

Welcome Kevin and a good new year to you .Very helpful members on and welcoming .

I'm in Nairn

Sean

Anything Fortis please

Wow this thread has gone into way too much detail . All i wanted was some advice on fixing the lathe to the floor . I've decided on trapping 4mm rubber strips between the bottom of the pedestals and the concrete ,nip the bolts up enough to just hold the pedestals in place for now. Obviously truing up as best I can (I'm not buying a machinists level) . Today I'm going to make little adjustable feet with a through hole so i can use threaded rod for fine tuning . Once I get everything set up I have a bar I've been using for testing run out and I'll take it from there .

Thanks everyone for the input

Sean

That's what the lathe has ... 3 mounting points on the pedestal 2 at the head stock end and 1 at the tail stock . There are 4 mounting points on the actual lathe itself ,this is what I'll be making the adjustable feet for

Sean .

Apologies ....the measurements is 1100 mm . Would i use anything between the lathe base and the concrete ..ie.. rubber strips ?

Sean

Edited By sean logie on 04/01/2017 10:18:40

Edited By sean logie on 04/01/2017 10:22:07

Edited By sean logie on 04/01/2017 10:23:57

Edited By sean logie on 04/01/2017 10:31:43

Good new year to everyone .

Have had plenty of time in the workshop lately and I'm admitting to myself I have three problems with the Fortis .

#1

I need to get the lathe sitting better on the concrete floor(any suggestions welcome ) .I'm toying with the idea of making a plinth for the lathe to sit on using self level cement or something the same .Possibly using rubber matting strips (4mm thick) between the bottom of the pedestals and the floor then bolting down firmly not super tight (again I'm open to any ideas ) . .The cast iron pedestals the lathe sits on only have 3 bolt holes ,2 in the head stock end (front and back) and one on the tail stock end . My first thoughts were to turn a set adjustable feet, but I'm not sure if it would work with just the 3 mounting points .I've read in a few places the reason for only the 3 mounting points is so the lathe can find it's own footing so to speak .

http://s1259.photobucket.com/user/Fortis64/media/20161106_111752-800x450_zpsdhqdvhn4.jpg.html?sort=3&o=0

Anyways that's my dilemma regarding the mounting/fixing of the lathe .

#2

The counter shaft/pulley is not running as true as i would like ,it's causing a slight vibration and because the lathe is not sitting perfect it's effecting the finish on the parts I'm turning ,more so on longer parts when using the tailstock .

#3

Tail stock is out of alignment ,I'll need to sort #1 & #2 before i can adjust it ?.

Other than that I've been having a great time messing about with the settings/speed feeds,big cuts ,very light cuts (dusting) ,using the 4 jaw more and more (great bit of kit ) really well made also . Anyone made an adaptor to use their cordless drill on the top slide for cutting tapers . I made one yesterday ,the improvement on finish is well worth the effort to make it .

Sean

Edited By sean logie on 04/01/2017 10:08:25

Here you go ,I had one of these not that long ago . Is your's complete ?

http://vintagemachinery.org/pubs/4654/6592.pdf

Found some photos hope they help put some light on the situation .

Sean

The lead screw slide gear has a ball bearing with a small spring in the part you see protruding that allows you to set it in position . The the big gear up from that is the one mounted on the fixed banjo . I didn't have time to take photos of it ,I'll strip it down tomorrow taking photos as i go .

Sean