Coffee grinder build?

[Chris152]

After reading some of the posts in the recent coffee bean thread, I decided I need to give beans a go. A good quality grinder is expensive, so I think I might have a go at making one. First step was to buy a cheap hand grinder to see how they work. I got this one a couple of days ago.
https://www.amazon.co.uk/dp/B083QC7G51?ref=ppx_yo2ov_dt_b_fed_asin_title
It actually does a decent job of grinding a fine powder but is painfully slow. So I end up attaching a drill to the top and it still takes a good while.
The build quality is just about ok, tho you could cut yourself on the edges as the metal is so thin.

So - my plan is to take it apart (once I've used up the bag of beans I bought for testing) and build a nicer one in stainless.

Couple of questions:
1. Has anyone else built one?
2. Is the very slow rate of grinding typical of hand-powered ones, or just this cheap one? If it's typical, I'll make a powered one.
3. Any recommendations on where to buy the burrs from? I see some are very expensive, others not so bad, but I have no idea of quality.

I'll post more once I've made a start.

 

[Etaf]

look forward to seeing it finished - the Burrs are quite an important part of the grinder - rather than the spinning knife things - mine is all part of the coffee system and with a lot of adjustment
How do you adjust the grind - mine has about 20 settings , and i use them all the time between about 4 and 12 depending on the coffee i'm using , even the same fresh 1kg packet needs some adjustment , as used

 

[Chris152]

look forward to seeing it finished - the Burrs are quite an important part of the grinder - rather than the spinning knife things - mine is all part of the coffee system and with a lot of adjustment
How do you adjust the grind - mine has about 20 settings , and i use them all the time between about 4 and 12 depending on the coffee i'm using , even the same fresh 1kg packet needs some adjustment , as used

I think adjustment would be the same as yours, but less precise (no indicators of which setting on this one) - it's a plastic dial/ screw that tightens the cone from beneath. First go, I tried grinding beans at various settings, but it took so long I put the beans in my old, cheap blade-cutting one to break them down initially, then transferred to the grinder to finish. Still took ages!

 

[Beau]

As for is hand grinding slow I would said it doesn't have to be. My folks used to have one of these and it didn't take long to grind the morning coffee https://www.ebay.co.uk/itm/35636142...aDDYCvWly-JkYOMR5tpnMqiYoMgf4WscaAm0fEALw_wcB

 

[Etaf]

but it took so long I put the beans in my old, cheap blade-cutting one to break them down initially,

I would not do that personally - you will get over/under extracted coffee and will taste bitter
Mine grinds very quickly - its a SAGE machine (UK) Breville (US)
Maybe its the ceramic burrs - dont know