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4th January 2014, 08:46 PM #1Member
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This a good thing or a bad thing?
Guys,
On my little Rong Fu mill I have hot some leafe headed bolts which tighten down on the gibs on the X and Y axis. Obviously they are there to minimise any play on the axis not being wound at the time.
Is there any value at all in replacing those leaf headed bolts with hex heads and lock nuts and adjusting them down on the gibs so we dont need to make adjustments on the fly? Or am I just alking hot air again.
regards
Old Hutcho
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4th January 2014 08:46 PM # ADSGoogle Adsense Advertisement
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4th January 2014, 08:54 PM #2GOLD MEMBER
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Just adjust the gib if required and use the locking screws when required to stop travel on your axis.
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4th January 2014, 08:55 PM #3
Hi Hutcho,
Happy new year. I still haven't sent you those gears i will get there....
The leaf headed bolts are for locking an axis, if the gibs are straight there should be some grub screws with lock nuts to adjust the gibs, if the gibs are tapered there will be a screw at each end of the gib so it can be adjusted side to side which either tightens or loosens the ways. If you are cutting with the X (long) axis you should lock the y axis and vise versa.
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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4th January 2014, 09:01 PM #4GOLD MEMBER
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So what are leaf headed bolts? google was no help
Stuart
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4th January 2014, 09:11 PM #5
Like an adjustable handle only the cheap version-bolt with no head but a slot with a "leaf" put in it and pinned in place. I cannot find a picture anyhwere......
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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4th January 2014, 09:25 PM #6SENIOR MEMBER
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4th January 2014, 09:37 PM #7GOLD MEMBER
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Thank you gentlemen. Never even knew those things had a name lol
Stuart
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4th January 2014, 09:57 PM #8Philomath in training
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Yes
If you put on hex head bolts then you are less likely to nip them up when it would be sensible to do so. As Ewan pointed out, the gib should be adjusted up so there is minimal play anyway; the leaf bolts are there only to lock up an axis. I find I lock the (non-moving) axis of my mill quite often when there is a hand lever. By comparison I don't do it as often as I should on the lathe as the axis lock requires a spanner and even though it is racked in the cabinet 500mm away it's extra effort.
Michael
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4th January 2014, 11:18 PM #9
Are you sure they are under that swarf somewhere? Another yellow 45.
My mill had 1 of these bolts missing when I got it. I have replaced them all with M10 SS cap screws except for 1. I ran out of Cap screws. I want to replace them with something better but I am not sure what. The little leaf heads are too awkward to operate and I don't think they have enough strength for the job. I keep an 8mm allen key on the mill tray.
Dean
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4th January 2014, 11:40 PM #10SENIOR MEMBER
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For anyone looking for one: Handles | machineryhouse.com.au
HAFCO seem to have a few different variations. I stumbled across them looking for a gib screw in their spare parts section. Quite a few unexpected goodies in there.
PS: Dean I know you said you did not like them. I just thought of you and how your mill was missing one when I stumbled across them..
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4th January 2014, 11:59 PM #11
What size thread are they Dean?
60mm Lever M8 Threaded BLK Machinery Adjustable Handle | eBay
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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5th January 2014, 12:15 AM #12
It was the little leaf bolts I don't like. On the page you linked to was a "Handle (ratchet) M10 x 25mm" which is exactly what I want. PP025 | HANDLE (RATCHET) M10 X 25 | machineryhouse.com.au The problem is that they are $35 each. 6 of them will cost $210. Way too much money considering all the stuff I wish to buy in the future. That's nearly half the cost of a DRO.
Dean
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5th January 2014, 12:25 AM #13SENIOR MEMBER
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5th January 2014, 12:28 AM #14
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5th January 2014, 12:39 AM #15
These ones look ok.
10mm DIA 25mm Length Thread Metal Adjustable Fixing Knob Handles Lever | eBay
Only 2 available. Funny how 3 different EBay stores only have 2 of these left! Around $9.70 each. Looking better. Maybe I should try one and see what they are like.
Dean
Ps. Now up to 4 EBay stores with only 2 left. They also seem to give almost identical search results.Last edited by Oldneweng; 5th January 2014 at 12:50 AM. Reason: ps added
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