riparazione e creazione piastra sotto,per tornio proxxon pd 250/E

[@manuelgti6766]

Muy bien, ahí va mi like

[@marcopantaleone9449]

Che macchina usi per fresare?

[@habiks]

I tried something similar, but still couldn't get rid of whole carriage tilting when changing Z axis direction - I see you still have problem ( 43:52 - 43:55 )

[@HyperOneCraft3603]

you have to adjust the bolts every now and then....it's 3 years old and it's a bit worn out even above

[@marcoam2610]

carriage tilting when changing Z axis direction: Very well observed - this is one of the keys to precision with this machine. I have held a dial indicator against a clamped workpiece and then moved the cross slide back and forth in Z axis direction...I get a few hundredths difference in X direction. How can we solve the problem, how are the guides of professional lathes built (e.g. Emco)? The whole lower plate design can definitely be improved...but how...hmmm....

[@marcoam2610]

considerations revised base plate: Minimize the distance between the base plate and the bed guide edges, widen the base plate on both sides in the Z-axis direction unfortunately we do not have bed guides from the very outside like here: kzbin.info/www/bejne/sGPCiIp7ZZVjibs (19:41 - 21:11)

The problem I've found is that the base plate is not wide enough. You can minimize the tilting by adjusting it very precisely, but it's a pain to do and the tilting does NOT disappear. I was thinking of either - making a base plate that is very precisely cut to the exact width of the bed guides - make a two piece base plate with double threaded rods (reverse threads) so the width is adjustable.