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Thanks. What are the ways I can check my plate is warping? I tried using an indicator to measure the flatness of the steel and it shows the plate is flat with almost no difference (0.005mm) across...

Thanks. I've worked my way around by using a 6mm diameter, 1mm tall slotting mill. I first tried with 60m/min (3183rmp) with 0.03mm/tooth/rev chip load (0.5% of tool diameter which is half of what...

I used cheap ER32 collet with BT40 holder, TIR was around .05mm haha will using smaller collet and holder gives better runout (like ER16 collet, I prefer collet system because I have to change my...

I use new inserts, shouldn't have blunt tips. How low spindle speed contributes to poor surface finish?

I'm using a 50mm shell mill and inserts like this one :...

Thanks, I get what he means now. Turns out that the corner appears to have better finished due to some vibration, my vise isn't large enough to hold the steel plate. Found this out because I clamped...

What do you mean by
they've been cut twice by the same cutter and from two different angles ?

Thanks for the info, I will try to work on my feed and speed when I get back to my workshop.

Can you explain more about the scalloping period? I'm fairly new to machining.

- The inserts are new, the material is 'H6501' claimed by the Chinese vendor (I believe its carbide) with TiAlN...

I'm not sure what material I'm using, my vendor does not know it as well, unfortunately. I don't have to weld the part. The cutter marks leaving on the steel are very noticeable, I don't need a...

Hi,

I was facing a part. But, the surface finish of the part is uneven, only one small part has mirror-like finish and feels 'flat', the other has tool marks. Can anyone explain what could've...

Thanks for the detailed explanation. I broke my last 1mm end mill couple days ago by accident, they are very fragile. I will update here when they arrive.

I get what you mean, I was running at 1300rpm 15mm/min, 0.003mm/tooth, 0.2mm doc yesterday, do these numbers look good for you? or they are too low. I don't need high speed. Might try 10000rpm at...

I will consider a slitting saw for this. Thanks.

Max RPM isn't a very comfortable speed for me, can I run it at a lower speed?

Thanks for the reply! It's a good idea to use trochoidal milling. I'm actually not sure about what feed per tooth to use, but now I'm running it on 0.002mm per tooth (0.00008 inches approx). Can I...

Hi Craig,

Thanks for the information.

First of all, I don't actually prefer coolant because it makes the machine messy and I'm not able to see the progress when machining small parts, I did...

I'm new to CNC. Recently I was trying to machine a 1mm, 120mm long with DOC of 0.5mm with a 1mm end mill. I'm running this on a 3-axis VMC.

Tool: 1mm carbide 4 flutes with TiSiN coating (claimed...