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I cannot find a smaller machinist in my area (Atlanta) willing to help (most specialize in larger projects). Maybe someone on this forum can help machine a simple shaft and I can pay with Paypal or...

I purchased an old lathe with standard 20mm diameter headstock shaft with MT1 and 3/4" 16TPI end for attaching chuck. Unfortunately, the headstock shaft is bent and I replaced it with ER20 shaft...

Sorry, I was not clear. the painted part is only used during the molding to make sure the nut does not come out too tight (I had some extra - same as yours - 1/8 with 8 pitch and 2 starts)....

Lots have been written about the Delrin DIY nut by boring and melting it around the acme screw. The problem most, including myself, experience is that the nut comes out very tight and reheating and...

Building new CNC and everything is configured with MACH3 and HY-DIV268N-5A drivers. The problem is very low torque on steppers where it starts skipping steps even with moderate resistance - it just...

Thanks. Just placed the order and should arrive in a month

thank you, Garry. Really appreciate

Hi,
I am building the first CNC with a BOB found here: http://wiki.midsouthmakers.org/images/e/e2/5axisManual.pdf and have a general question to better understand the principle for operation:

BOB...

I have 5/8in (0.625in = 15.875mm) precision rod. Unfortunately, SAE guides are expensive and difficult to come by in 5/8 size. Can I use 16mm guides instead? I am not looking for an ultimate...

Hi Jeff,
thank you very much for the suggestion! I will try this once my current order of supplies come and will follow up.

I already have a high quality brushless motor that can drive a spindle. Just cannot find a way to find type of ER20 chuck-collet combination (most of the collets are tapered) that would easily attach...

I found a straight collet chuck holder on Amazon with 20mm collet. the new idea is to get ball bearing (got these) with ID 20mm and put it directly on the collet. So, the collet will replace the...

I am a total newbie to milling equipment but have been using woodworking and electronics for a while. Building a CNC machine that will be used both for milling and woodworking. I already have a high...