Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
Search
Lathe Accuracy
|
Good Morning:
Finally received the new HS assembly from Homier, and carefully swapped out the internals from the original. After installing the "new" hs, and squaring it to the bed, I reinstalled the chuck, and proceeded to chuck up a 1/2" 12L14 shaft to test the assembly. Checking the hs/ts height, showed them to be in good alignment. Took a .010" pass off the rod without holding the end in the ts, and even taking a short cut 2" from the hs produced a taper. Am wondering if the bed is twisted, or if I should just scrap this unit for a new one. If anyone else has run across this situation, I would be interested in hearing your thoughts/comments on correcting this problem. Best regards, Nick |
|
Nick,
toggle quoted message
Show quoted text
which way is it tapered, small end to the headstock or tailstock? If your lathe is bolted down that can twist the bed and swpping parts will not help. Try loosening the bolts holding down the tailstock end and take another cut. If it changes the bed was twisted by the bolts. Then you shim it so when it is tightened down the cuts are true without a taper. Bob On 27 Nov 2002, at 15:23, ntdefeo wrote:
Good Morning: |
|
Good Afternoon, Bob:
The taper is smaller toward the headstock. The lathe is not bolted down, but is sitting on a 1 1/2" workbench that is level. Am wondering if bolting the bed down will correct this tapering situation. I have cut several 1/2" steel rods; with the tailstock locked down, and unlocked, with the same results. I am considering trying to test the alignment of the head/tail assemblies using centers and a DTI. I certainly appreciate your time, and will advise of my findings shortly. Best regards, Nick Bob Sunley <rosunley@...> wrote:Nick, which way is it tapered, small end to the headstock or tailstock? If your lathe is bolted down that can twist the bed and swpping parts will not help. Try loosening the bolts holding down the tailstock end and take another cut. If it changes the bed was twisted by the bolts. Then you shim it so when it is tightened down the cuts are true without a taper. Bob On 27 Nov 2002, at 15:23, ntdefeo wrote: Good Morning: Yahoo! Groups SponsorADVERTISEMENT To unsubscribe from this group, send an email to: 7x12minilathe-unsubscribe@... Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now |
|
Good Afternoon, Bob:
The taper is smaller toward the headstock. The lathe is not bolted down, but is sitting on a 1 1/2" workbench that is level. Am wondering if bolting the bed down will correct this tapering situation. I have cut several 1/2" steel rods; with the tailstock locked down, and unlocked, with the same results. I am considering trying to test the alignment of the head/tail assemblies using centers and a DTI. I certainly appreciate your time, and will advise of my findings shortly. Best regards, Nick Bob Sunley <rosunley@...> wrote:Nick, which way is it tapered, small end to the headstock or tailstock? If your lathe is bolted down that can twist the bed and swpping parts will not help. Try loosening the bolts holding down the tailstock end and take another cut. If it changes the bed was twisted by the bolts. Then you shim it so when it is tightened down the cuts are true without a taper. Bob On 27 Nov 2002, at 15:23, ntdefeo wrote: Good Morning: Yahoo! Groups SponsorADVERTISEMENT To unsubscribe from this group, send an email to: 7x12minilathe-unsubscribe@... Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now |
Messages
More
More Options
More
to navigate to use esc to dismiss