Gears Part 2. Progress continues on Little Walts gearbox restoration. Modification of the gear blanks is now the quest. Arriving within the 8 days promise delivery time all the way from Munger Machinery & Tools Store in deepest China came a 550w 220v Brushless Servo motor with speed controller. Should be ideal for powering the tool post grinder.
Aye, old Ching Wong Munger has a reet selection of stock in his Shanghai store from Mini Rocket Altimeter Recorders to 2ltr liquid nitrogen storage tanks.
With the motor hand held above the Myford bed for a first eyeballing it looks like a simple but substantial 90 deg bracket of some sorts mounted to the cross slide would fix it near enough to drive the grinder. Assuming both are fitted with appropriate pulleys, which can be ordered when the positioning is finalised..
Super strong custom sized RSJ brackets can be found on ebay. These are mainly sold by a company called UK Custom Parts. I studied their offerings and went for a 120mm x 80mm x 100mm wide x 8mm thick steel version. These are pre-drilled with 12.5mm holes which I probably wouldn't need but no worries. No sooner had I pushed buy the steel bracket was on it's way to The Old Side-valve Bar. Not done yet.....another engineering eyeballing session was now needed to formulate how to firstly clamp the bracket tightly for drilling and what drill sizes were needed.
Digging into the wallet again I sourced a 63mm TCT Carbide Tungsten Tipped hole saw complete with arbour. Usual source....China this time from Wing Woo Chow Mein Onmaiwei Tools Official Store. This would allow the raised boss on the motor to centralise firmly on the bracket and stop any movement when running. If I use the hole saw carefully it should do the distance. More waiting of course... but only the usual 8 days.
Next step - bracket marked for drilling centres and firmly clamped in the big drill press at Government workshop.... let's do some engineering......
Lastly for this blog page...make T Bolts (from 8mm coach bolts) to fix bracket to cross slide.
