Search found 1545 matches

by Torch
Sat Mar 04, 2017 12:38 pm
Forum: 3-in-1 Metalworking Machines
Topic: Smithy granite
Replies: 3
Views: 4231

Re: Smithy granite

Without considering the merits of one specific brand over another, the 3 in 1 format is suitable for a hobbyist on a budget and/or in limited space. I have used mine for making unobtainable (or even difficult-to-obtain) parts for motorcycles and outboard motors that I am restoring/repairing. Even mo...
by Torch
Fri Mar 03, 2017 8:56 am
Forum: 3-in-1 Metalworking Machines
Topic: Smithy Midas 1220 LTD Quick Change Toolpost Help
Replies: 12
Views: 8748

Re: Smithy Midas 1220 LTD Quick Change Toolpost Help

As I said, I don't have a Smithy, so I can only imagine without pictures. An oval can be turned with the lathe if you have a 4-jaw chuck. You start by turning the piece to the diameter of the widest point of the oval, then offset the piece in one direction to form one side of the narrow part of the ...
by Torch
Fri Mar 03, 2017 5:14 am
Forum: 3-in-1 Metalworking Machines
Topic: Smithy Midas 1220 LTD Quick Change Toolpost Help
Replies: 12
Views: 8748

Re: Smithy Midas 1220 LTD Quick Change Toolpost Help

If I understand correctly, the bolt that came with the QCTP is too large in diameter for the slot in your compound? If so, I faced the same problem when I fitted my QCTP to my machine. Although it was not an AXA nor a Smithy, perhaps you could do as I did and turn the new bolt to fit the slot instea...
by Torch
Thu Feb 16, 2017 5:47 am
Forum: 3-in-1 Metalworking Machines
Topic: Grizzly 9729 half nut
Replies: 4
Views: 4458

Re: Grizzly 9729 half nut

Acetal and Delrin are very, very similar. Same chemical structure, different manufacturing process (IIRC). I don't think it makes a big difference in this application, but I might give acetal the nod here over Delrin. Here's a short summary of the differences: http://www.lionep.com/uploads/files/Ace...
by Torch
Wed Feb 15, 2017 7:06 pm
Forum: 3-in-1 Metalworking Machines
Topic: Grizzly 9729 half nut
Replies: 4
Views: 4458

Re: Grizzly 9729 half nut

I played with it a little bit last night but was wondering if anyone else has any experience with this material. More importantly will this material hold up or should I complete the tap and make one out of brass. I've read the same method of making a delrin half-nut, and considered doing that mysel...
by Torch
Sat Dec 31, 2016 4:29 pm
Forum: 3-in-1 Metalworking Machines
Topic: 3-1 Machine purchase, what to get?!
Replies: 1
Views: 3469

Re: 3-1 Machine purchase, what to get?!

I've never seen the Bolton in person, so I googled it. From the specs and a youtube video I would say it is pretty typical of the type. It may well have been made in the same Chinese factory as the Craftex B2229. The two are very similar in size, with slightly greater swing over bed offered by the C...
by Torch
Wed Nov 02, 2016 6:29 pm
Forum: 3-in-1 Metalworking Machines
Topic: Thread Gearing on a BT800
Replies: 19
Views: 16129

Re: Thread Gearing on a BT800

that's concerning (about the metric threads)..... since I really like running my threads with the motor in reverse and the tooling mounted upside-down..... guess i won't be doing too many metric threads.... hopefully.... Ok. So do the same thing except wind the tool post away from you and put the m...
by Torch
Wed Nov 02, 2016 5:46 am
Forum: 3-in-1 Metalworking Machines
Topic: Shoptask 1720
Replies: 197
Views: 49839

Re: Shoptask 1720

I bet it would be possible to replace the crank handle with dividing head plates and crank.

Then you would have a 3-in-1 mounted to your 3-in-1. ;-)
by Torch
Tue Nov 01, 2016 9:34 pm
Forum: 3-in-1 Metalworking Machines
Topic: Thread Gearing on a BT800
Replies: 19
Views: 16129

Re: Thread Gearing on a BT800

I set it on 1 just to see and it worked, so now I know. Should I assume it's a 1 anytime is not listed in the chart? 20161101_204127.jpg Ok, if I recall correctly, you can engage the half nut on any number if the thread pitch is a) inch and b) divisible by 3 (eg: 6tpi, 9tpi, 18tpi, 24tpi, 27tpi, et...
by Torch
Tue Nov 01, 2016 9:13 pm
Forum: 3-in-1 Metalworking Machines
Topic: Thread Gearing on a BT800
Replies: 19
Views: 16129

Re: Thread Gearing on a BT800

TechTony wrote: All is working well now.
Hurray! Have fun!
by Torch
Tue Nov 01, 2016 5:31 pm
Forum: 3-in-1 Metalworking Machines
Topic: Thread Gearing on a BT800
Replies: 19
Views: 16129

Re: Thread Gearing on a BT800

<lol> There's the problem all right. You see the 1/4 round cutout in the steel block? That needs to be positioned around the leadscrew so the gear can engage. Undo that one bolt, position things correctly and reinstall the bolt. Rotate it slightly around the bolt to fine tune the gear lash.
by Torch
Tue Nov 01, 2016 8:31 am
Forum: 3-in-1 Metalworking Machines
Topic: Thread Gearing on a BT800
Replies: 19
Views: 16129

Re: Thread Gearing on a BT800

A picture might help ;-) The thread indicator may be mounted with a single bolt. Loosen the bolt and roll the thread indicator into the leadscrew to engage. Bear in mind that the thread indicator does NOT move when engaged and the lead screw is turning. IE: if you engage the half nut while the carri...