T51 tool post on Boxford 4.5″

[Robin SalmonParticipant @robinsalmon]

Will it fit

[Robin SalmonParticipant @robinsalmon]

I'm asking if a t51 qctp will fit a 4.5" Boxford model A.

I'm sure some of you will know. The T51 is advertised as 125mm min center height, where as a T31? Is 112mm which is the max height but has a smaller tool holder. My 4.5 mm Boxford is obviously 112mm centre height, but I would like to have the ability to put bigger tools in, I know I could be above centre but can always mill some off the bottom of the tool. Thanks for looking

[Tony Watson 5Participant @tonywatson5]

I use T51 holders on my nine inch (4.5 inch centre height) Hercus. The gaps in the holders are 16 mm but the largest practical size for a tool is around 12 mm (insert or cutting edge height). The measurement you need to consider is the centre height from the top of the topslide. I thing this is pretty common top most South Bend clones, including Boxford. The Hercus measures 20mm.

[Robin SalmonParticipant @robinsalmon]

Thanks Tony, I get most of your post, however the 20mm you mention, I can't figure where this is. 20mm height to the top of the compound slide from the cross slide?. Regards Rob

[Tony Watson 5Participant @tonywatson5]

The 20 MM is from the top of the compound slide ie the surface where the toolpost is mounted.

[Author]

Posts