PDA

View Full Version : Repetition, and repeatability



LanceC
17th October 2020, 09:41 AM
Whilst I can make nice looking pulls, I really struggle being able to make more than one look alike. This becomes somewhat problematic when a project calls for multiple pulls.

During this week's Friday prattle I asked some advice about this and was given some good tips by Doug and Matt.

With a template in hand showing diameters of key areas which I cut with a parting tool, I then played join the dots.

This gave good results, and with some more practice felt like this is a struggle I will overcome sooner than later.

My remaining issue is the finished diameter after "joining" the curves together. I think this is more about developing a light touch and skill though, so should come with more practice.

I would be interested in any other techniques people use to make repeatable turnings. If you use templates, I would be interested in some pictures of what yours look like.

https://uploads.tapatalk-cdn.com/20201016/7c3e9fb6926e5dbbc680fdeaaca9ffa2.jpg https://uploads.tapatalk-cdn.com/20201016/72bbb9509e8ccb98b3c3c83a4e14aaa5.jpg

Skew ChiDAMN!!
17th October 2020, 05:21 PM
I'm partial to story sticks.

When turning, I'll use a template much as you do, but I'll transfer the marks to a straight length of wood. I then partially drive a small brad in at each mark and clip the heads off, sharpening them into points.

In use, I round the blank to close to size, then offer up the story stick so the brads score shallow marks on the blank.

I find this much quicker and more accurate than trying to mark each point directly off the template... and the templates last much longer, as after making the story stick the only times the template is used is to check final shape & size.

derekcohen
18th October 2020, 03:52 AM
Lance, a few pics ... much the same as yours, with a template used for length, etc ...

https://i.postimg.cc/2SfsZbkg/knobs1.jpg

https://i.postimg.cc/fTZDpFNp/Ca.jpg

https://i.postimg.cc/ZK3KdRnq/7a.jpg

Regards from Perth

Derek

dogcatcher
18th October 2020, 01:17 PM
I use 2 types of semaphore jigs to help "duplicate" multiples of one item.

https://i.postimg.cc/94GnCjvZ/1-a-1-a-Lathe-Semaphore-Jig.jpg (https://postimg.cc/94GnCjvZ)

https://i.postimg.cc/hvWkw2HV/semaphore-template-jig.jpg (https://postimages.org/)temari wallpaper (https://suwalls.com/anime/temari-naruto)

chuck1
18th October 2020, 06:53 PM
I use scratch, pencil gauges, depending on pattern as to weather I use callipers for measurements for diameters.
Working to the pencil lines and paying attention to how much pressure used for Vee cuts.

auscab
18th October 2020, 09:04 PM
Hi Lance .
I mark lengths on a stick . Sometimes rest a exact template with shapes and marked lengths behind the spindle work on larger things .
The main process I do like most guys do I think, is to turn off the waste down to the largest diameter cylinder which is checked with Calipers.
Place marking stick on or close to spinning cylinder and mark the important points . One of those would be the low spot in the middle of your knob that would have a different caliper setting . Same for the stub end that gets glued in. Turn the curves needed down to the low spots . With a bit of practice you get better and need less checking with calipers until just the gluing end may need it only .
I have a number of callipers and have dipped some ends in different colours of Paint to make picking the correct one easier.
Some guys saw sheet metal as a fixed distance caliper to match drill bits for gauging ends that will be glued into holes like the end of your knobs.

One thing you definitely want to do is follow some of the good Pro turners on instagram . Watch in Awe the use of the Skew , proper use of gouges and marking out . Lots of very valuable things to pick up just looking over the shoulder of a Pro .

Ill send these to you through insta messages as well seeing as though we follow one another .

First, and the guy that amazes me most is . stevethewoodturner

Login • Instagram (https://www.instagram.com/stevethewoodturner/)

then
Login • Instagram (https://www.instagram.com/davedalbywoodturning/)

and

Login • Instagram (https://www.instagram.com/richard_findley/)


Rob