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How does a toothed belt provide higher accuracy than a round belt between the encoder and spindle? Assume high quality bearings and essentially zero friction at the encoder side. A timing belt is

There is no way I would ever use a flat or round belt to drive an encoder if I wanted an accurate pulse train that matched the rotation being sensed. Torque has nothing to do with it, we are solely

I turned an adaptor for the end of the lead screw. Onto that I put the 40T pulley. The motor has a 20T pulley. John

Check Amazon and eBay for HTD pulleys with 3mm pitch. Remember that you have a lathe, so you can bore out a 12mm or 15mm pulley to 3/4” pretty easily. For my Emco lathe (8mm stepper, 19 or 20mm

The lead-screw on my lathe is about 20mm diameter and 3mm pitch so very close to yours. I run a 3Nm stepper on my system with a 2:1 drive. A 40 tooth HTD pulley on the screw and a 20 tooth on the

Looking?for pulley and belt suggestions. I have 3.10Nm stepper with a 8mm shaft. My leadscrew is 3/4 - 8tpi. The stepper has been criticised as to small for that leadscrew and suggestion to use

I have heard of lots of folks having problems using usb & missing steps or machine freezing . their fix was using a board with Ethernet? . I havn't done anything my self with cnc except for rounding

My problem with the DIY CNC application, for me,? is establishing the profile for the steppers in software.? The advantage of purchasing a branded product is that they have created the spindle

Tamra, I used to cut gallery spindles 2" x 3/8" and chess pieces in wood on a 4 axis flat bed router using an old lathe head stock as a the 4th axis that I found in the scrap bin a little work fitting

Phil, I don't think I'm going to be able to use a CNC router big in stationary tool post.? My Sherline tool post arrived today, I ordered one on eBay.? (Who knows when business will be allowed to

Tamara take a gander at this https://www.pennstateind.com/store/CML-DUPU.html ??? ??? looks like it may be right up yer staircase . I think the Walter Maisey guy I mentioned on youtube may have

Hello, Prasad, That is a fantastic use of our "shelter in place" time and is an active way to support all those brave medical professionals who risk infection for us every day! Kudos to you, your

Hello Tamra, If you have a cnc machine used to cut spindles using Vectric Aspire then the easy option would be to set up a 4th axis create a rotary code and cut the part, I don't think you would be

John, its all theory right now, as a router bit cuts because it is spinning at xxx rpm...so I won't know until I try it to see if this will work.? But I know that I can get fine cuts when the spindle

Guys This COVID-19 has made us all shelter-at-home in relatively safe conditions as long as we meet with the guidelines and follow the rules meticulously. However, while we are staying indoors there

Agree, cutters ( multi flute) are designed to to turn whilst the part is stationary. Very difficult to set up a for example 3 flute cutter so one edge is parallel to the spindle. Just draw it out on

get them interested when their young !! sounds like ya have things pretty much under control there . how bout some pic's of some of yer projects some day ? ??? ??? animal

Tamra, would love to see some pictures of your projects. Ralph

Richard, I'm planning to apply some carving to my spindles, so ball nose tool bit is just what I want to use... and the other reason is that when I don't know what will happen with general metal tool

Tamra , if you have access to aluminum scraps/cutoff's/rem's you can get a lot of tool holders from a $21.00 scrap of aluminum & make the tool hole/slot to any size ya want ??? ??? animal