Source of 2mm Pitch Large Diameter Leadscrews

[TimSParticipant @tims]

Hello again Niko; your final link seems to have answered the original question; they do left and right in the sizes i need, sell nuts too and the prices are blummin great

i hope to place an order fairly soon (well as soon as i have considered any other project that could ever need a leadscrew )

[TimSParticipant @tims]

Hi MichaelG; the only way i could make the screws would be on the lathe; I've not done much thread cutting so it would be fun to say the least; that and the fact my metric lathe (WM180) wouldnt cut a thread long enough in one go… i was trying to work out if you could cut half the length before moving the rod to cut the other half… the only way i could come up with was to fit a nut in the tool post and unscrew the already cut part to allow machining of the rest… how accurate that would be is up for debate… i could do it on one of my imperial lathes but in all honesty i dont trust them for accuracy (a 19×18 and an ML7)

the most amusing part for me (regarding articles) is that the mill overhaul is to get me to a stage where i can work on a project which i am writing an article about… i may even get an article out of part of the mill modifications that i have never seen done before… so it may be a case of watch this space

[Michael GilliganParticipant @michaelgilligan61133]

One thought, Tim …

As you have already found; High Precision 2mm Leadscrew is readily available [and reasonably priced] in the smaller diameters. Why not use a length of this, bushed accordingly, as a temporary replacement for the Myford Leadscrew … You could probably modify one of the MarchantDice Nuts to be clamped by the Myford half-nuts.

MichaelG.

[TimSParticipant @tims]

its a good thought michael; i was going to convert it to metric but i have never really got on with it, the replacement motor is under powered and has no reverse, i dont trust it to turn parallel and fixing all that plus a leadscrew upgrade would add another project to do before i get to the one i want… 3 steps from what i want to do is just too many

on top of that i can get the screws i need for the same price as the blank materials and the new leadscrew

at least with the mill i am sorting it and it will be a permanent upgrade that i can use for all sorts, i am likely to sell the ML7 when i get half a chance; its 1940's from what i can remember and i think is all original… it needs a loving home and i'm a metric guy

Tim

[TimSParticipant @tims]

I thought i should post about the results of this thread as it helped me a lot i bought 2 lengths of each right and left hand 16x2mm from

http://www.metallbau-pietrzak.de/shop/index.php

i ordered them on a Sunday (a bank holiday Sunday) and they arrived nice and promptly on the Wednesday in fantastic condition; strapped to a sizeable piece of wood; wrapped in bubble wrap and in a custom box… it would have been fairly hard to damage them with this level of packing protection

price wise they were under £20 a meter which seems to be very reasonable to me

the screws also seem to be excellent, they are very smooth to the touch and look much better made than originals in my warco mill and even on my warco lathe

i didn't buy any nuts to fit them so i cannot comment on their quality (i plan to machine a section of each screw to make a tap; if that doesn't work i'll no doubt be on here asking for another option )

the only slight downside is the website is all in German; i used goggle translate on both the site and the emails i received with no problems; there are some graphics based buttons which didn't get translated but they had arrows so weren't too difficult to decipher

as you can probably tell i am rather pleased with the outcome and wanted to thank all of the contributors in this thread for making such a difference in my being able to locate exactly what i wanted

TimS

[Author]

Posts