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Thread: having fun chasing threads
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22nd April 2015, 09:14 PM #16
Hi jim,
That looks like a great little box , and a great solution
to the problem, I have just made a couple of boxes
just like that but without the threads , I will take you
up on the challenge , maybe this time next year !,
I only hope It would be half as good as yours
ThanksCheers smiife
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22nd April 2015 09:14 PM # ADSGoogle Adsense Advertisement
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5th May 2015, 09:23 PM #17
chasing again !!!
Hi guys,
Spent a couple of hours playing around with threads
again on sunday , and finally got to join 2 pieces of scraps
together with threads that actually work
I was as excited as a pig in poop!
now i wonder if i can repeat the process or was it just a fluke
Oh well i had to take a photo or two just to show off!Cheers smiife
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6th May 2015, 11:31 AM #18
Good job Smiife, good feeling isn't it? Suggestion.... cut the male thread first, then cut off the first three threads until the marks just disappear. That will give you the inside diameter for the spigot for the female thread.
I still think you should just chase threads without trying to make boxes, for a while any way. Tends to be a bit frustrating when the threads don't match, or the male thread is a bit small. . Probably a good idea to have another look at the Alan Batty video.
JimSometimes in the daily challenges that life gives us, we miss what is really important...
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6th May 2015, 08:52 PM #19
Hi jim,
Thanks for the tips,, I am definitely not ready yet to
mass produce boxes , and will keep practicing with
different timbers and use up a few more scraps
Thanks for the advice on taking a few threads off
for sizing too, never thought of that
I am having trouble holding the arm rest tool and
trying to hold the female threader and concentrate
on what I am actually doing , any tips....?
I seem to end up with a back ache after awhile?Cheers smiife
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6th May 2015, 09:22 PM #20
Hi Smiifie, You probably have already done this, but, make sure there are no nicks on the top of the tool rest or the back of the arm rest, most important. I will even buff them on a buffing wheel. That makes them nice and smooth and also warms them up. Gets down to 23c here sometimes during the day. . Put your left hand under the tool rest with the thumb gently on top of the arm rest. The left hand fingers should reach the arm rest from underneath. Move the arm rest together with the female thread chaser.
For practice pieces, turn a 50mm blank round and bore a 25mm hole through it. This will give plenty of room to work without the problem of "bottoming out", and enough wood to allow you to turn the thread off and go again.
If you are getting a sore back, sounds like your lathe is too low?
How long is the handle on the arm rest? Mine is 300mm long and fits comfortably under my left arm. The big advantage of it is that there is good access to the job and visibility. Seems like you have the tenacity to succeed. As mentioned before, it took me about 30 minutes to unceremonously and carelessly place the tools in the corner of the shed. Keep at it you will succeed.
JimSometimes in the daily challenges that life gives us, we miss what is really important...
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7th May 2015, 09:13 PM #21
[QUOTE=powerpost;1863057Hi Smiifie, You probably have already done this, but, make sure there are no nicks on the top of the tool rest or the back of the arm rest, most important. I will even buff them on a buffing wheel. That makes them nice and smooth and also warms them up. Gets down to 23c here sometimes during the day. . Put your left hand under the tool rest with the thumb gently on top of the arm rest. The left hand fingers should reach the arm rest from underneath. Move the arm rest together with the female thread chaser.
For practice pieces, turn a 50mm blank round and bore a 25mm hole through it. This will give plenty of room to work without the problem of "bottoming out", and enough wood to allow you to turn the thread off and go again.
If you are getting a sore back, sounds like your lathe is too low?
How long is the handle on the arm rest? Mine is 300mm long and fits comfortably under my left arm. The big advantage of it is that there is good access to the job and visibility. Seems like you have the tenacity to succeed. As mentioned before, it took me about 30 minutes to unceremonously and carelessly place the tools in the corner of the shed. Keep at it you will succeed.
Jim[/QUOTE]
Hi jim,
I will have a look at the toolrest and "warm it up ", only -2º
this morning, I feel I am becoming a " pita" with all my questions
but I really appreciate your help and thank you for it ,
The lathe Is at bent elbow height at the spindle centre
The whole tool measures 600mm , and the handle is 380mm
I don, t think the tool Is the problem i think it, s the operator
that needs adjusting , thanks again for your tipsCheers smiife
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8th May 2015, 08:06 AM #22
Check to see if your tools or rest have become magnetized as well. ;-)
Mobyturns
In An Instant Your Life CanChange Forever
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8th May 2015, 09:43 PM #23
I remember being in Armidale in July on our honey moon. It was so cold we bought and wore thongs so our feet would not stick to the floors in the showers. You are on your own baby.
I do not consider you or your questions are a "pita", I think there might be a few people on the sidelines listening as well.... . I am only to willing to help, if I can.
JimSometimes in the daily challenges that life gives us, we miss what is really important...
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9th May 2015, 08:55 AM #24GOLD MEMBER
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Yeah, I'm sitting on the sidelines enjoying the action. Dabbled in thread chasing ages ago, will have another go when time and patience permit.
The types of wood have quite a bearing on results, and believe Catoneaster, Rhododendrum, coachwood, Magnolia, and possibly Teak are worth trying, amongst others mentioned above.
Perseverance, persistance and patience and the odd profanity will help in your journey.
Good luck with it.
Alan...
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10th May 2015, 08:27 PM #25
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17th May 2015, 02:20 PM #26SENIOR MEMBER
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17th May 2015, 06:25 PM #27
still chasing !!
Hi guys,
Spent most of the weekend , practicing, practicing and
more practicing, trying different timbers and different
ways to run a thread , finally came up with one that
kinder worked, not 100% happy with the result but
did get a buzz when the threads actually worked.
Not sure what the timber was but didn, t take a thread
so decided to use some ebony inserts for the thread and it
seemed to work ok.included some photos of the weekends
efforts and the final box , it, s been a very big learning
curve , but still a long way to go
any comments and advice welcomeCheers smiife
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17th May 2015, 09:12 PM #28
Excellent, well done. Two things to keep in mind,
1, give the tools a quick touch up before every thread. Look closely at the top of the chaser and you may notice the points on the chaser are looking slightly down on the top. They are then not sharp.
2, don't be tempted to slow the lathe down too much. The Woodfast midi that I often has a bottom speed of about 350rpm. I have found that to be a good speed. The problem here is, with los speeds the thread is quite to establish a "kink" in the thread, often refered to as a drunken thread.
Don't put too much on making a box yet. Concentrate on cutting good threads. I learned this from experience.
JimSometimes in the daily challenges that life gives us, we miss what is really important...
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17th May 2015, 09:53 PM #29
QUOTE=powderpost;6028]Excellent, welI done. Two things to keep in mind,
1, give the tools a quick touch up before every thread. Look closely at the top of the chaser and you may notice the points on the chaser are looking slightly down on the top. They are then not sharp.
2, don't be tempted to slow the lathe down too much. The Woodfast midi that I often has a bottom speed of about 350rpm. I have found that to be a good speed. The problem here is, with los speeds the thread is quite to establish a "kink" in the thread, often refered to as a drunken thread.
Don't put too much on making a box yet. Concentrate on cutting good threads. I learned this from experience.
Jim[/QUOTE]
Thanks jim,
The low speed on my woodfast on pulley4 Is 290rpm,
so maybe alittle too slow, I did notice the thread goes a bit
out of wack about half way?
I have noticed on the u-tube they all use box wood or similar
Is that the same as our box gum trees?Cheers smiife
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21st May 2015, 07:44 PM #30SENIOR MEMBER
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Jim, are any Eucalypt woods better than others or are they all the same? Raffan recommends boxwood, African Blackwood, lignum vitae or gidgee. For Cocobolo and ebony he suggests cyanoacrylate application to prevent chipping. He has nothing to say about Eucalypts though.
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