|Project by Tony||posted 03-17-2010 07:37 PM||8244 views||23 times favorited||15 comments|
A very quick and cheap little project. My lathe does not have an indexing system, because it is a really cheap and nasty lathe. This little projects has two main components; 1. a piece of MDF and 2. a horizontal toggle clamp.
start with a square of MDF, find the centre and mark it (DO NOT DRILL IT OUT YET), next mark out the index holes you want, this one has 32 (11.25° increments), 1, 2, 4, 8 & 16 increments are also possible with equal spacings . Drill out the index holes ( the size depends upon the tip of the rubber pad), then drill out the centre hole, I used a forstner bit close (slightly smaller) than the diameter of the spindle thread.
I then threaded on the MDF to the spindle (the steel thread cuts into the MDF really easily) – I then screwed on the chuck to lock the MDF into place. I then turned the square plate into a perfect circle and softened the edges.
Next come the fitting of the toggle clamp, this must be positioned so then when it is engaged, the soft rubber tip engages the holes centrally – A little shimming with a Ply wood block fixed to the housing of the pulley assembly.
That is it – I have used the lathe with the indexing wheel attached, whilst turning at high speeds without any problems. When using the indexing wheel, I always remove the power from the motor, to avoid any accidents.
You can make any number of wheels with the required increments for your project – I hope you like it.
Update: About a year ago I said I would post the project I made with this jig, well better late than never I suppose, also find attached e few photographs here of the legs.
-- Tony - All things are possible, just some things are more difficult than others! - SKYPE: Heron2005 (http://www.poydatjatuolit.fi)