What are you machining?

[slim_boy_fat]

^^ I stopped watching when I heard the words "extremely dangerous" and "really rigid machine" [actually I did watch some of it, but know it's not something I'll ever be tempted to attempt.

 

[Kram]

 

[grim_d]

Finally getting my finger out to make the changewheels for the lathe.

Break myself in nice and easy 40T in Delrin. Came out pretty much perfect!

Not looking forward to the 127T

 

[minimutly]

Making a pair of alumium sidepanels for my xj650 single seater project, nearly done the LH, run out of argon.
Everywhere is closed...

 

[minimutly]

Quick update - picked up 20l of argon, job delayed by the arrival of a replacement engine for the vmax.
Engine is in, had to do some tidying up of the frame paintwork first, which delayed things a bit.
Pics of the first sidepanel tomorrow.

 

[Agroshield]

Not looking forward to the 127T

Why not? Time to cut or chances of a mistake? To reduce the second, print out a disk with 127 lines on it (there are online things that will give you a pdf), stick it on the blank and set up a height gauge/scribing block pointing at the lines. Then you can do a quick visual check of your indexing before pushing the cutter through it.

 

[Pete.]

Why not? Time to cut or chances of a mistake? To reduce the second, print out a disk with 127 lines on it (there are online things that will give you a pdf), stick it on the blank and set up a height gauge/scribing block pointing at the lines. Then you can do a quick visual check of your indexing before pushing the cutter through it.

I do that when dividing. I cut a few teeth then set up a pointer to an edge of one of them. It's saved me from indexing errors a few times.

 

[grim_d]

Why not? Time to cut or chances of a mistake? To reduce the second, print out a disk with 127 lines on it (there are online things that will give you a pdf), stick it on the blank and set up a height gauge/scribing block pointing at the lines. Then you can do a quick visual check of your indexing before pushing the cutter through it.

Time to cut, that's allotta teeth.

That is a fantasmic idea though.

 

[Kram]

What setup did you use to cut them? Something I want to try.

 

[grim_d]

Dividing head and a set of Chinese gear cutters.

 

[Dr.Al]

Dividing head and a set of Chinese gear cutters.

Get yourself a stepper motor and a DivisionMaster if you can afford it. That'll halve the time.

 

[grim_d]

Get yourself a stepper motor and a DivisionMaster if you can afford it. That'll halve the time.

I bought a load of Arduino gear recently for that very purpose, but I want to cut this gear before I will get around to doing that.

 

[Kram]

Finished off the toolholder blank I started weeks ago, assumed I ruined it by cutting too deep, not ideal, but it will work.

 

[Kram]

Quick go at lunch trying a 10mm ripper cutter. This is going to be a 32mm parting blade holder.

 

[Kram]

Ok this setup much better

4mm depth 7.3mm width cut that time, tried video but cocked that up.

Previous pass same depth 3mm width

 

[grim_d]

I'm no expert but rpm looks a little on the fast side?

 

[fizzy]

I'm no expert but rpm looks a little on the fast side?

Especially with no flood coolant.

 

[brightspark]

might be just me but the cutter looks a bit discoloured at the tip and overheating

 

[doubleboost]

might be just me but the cutter looks a bit discoloured at the tip and overheating

slow it down

 

[grim_d]

Especially with no flood coolant.

Even a little cutting oil would help.