Search found 1331 matches

by WJH
Tue Dec 04, 2018 4:10 am
Forum: Live Steam Marketplace
Topic: set of 8 cast iron wheels - unmachined - On sale now - $45
Replies: 5
Views: 941

Re: set of 8 cast iron wheels - unmachined - On sale now - $45

BClemens wrote:
Mon Dec 03, 2018 9:18 am
What would the maximum rim width that these would finish? Greater than one inch wide?
BC
When I get home from this work trip, I'll take some measurements
by WJH
Mon Dec 03, 2018 2:05 am
Forum: Live Steam Marketplace
Topic: set of 8 cast iron wheels - unmachined - On sale now - $45
Replies: 5
Views: 941

Re: set of 8 cast iron wheels - unmachined - On sale now - $45

Received my set, they look nice. Haven't machined them yet, but that is a good question.
by WJH
Sun Dec 02, 2018 5:23 pm
Forum: Milling Machines
Topic: ZX7016 Milling Machine to CNC
Replies: 17
Views: 3589

Re: ZX7016 Milling Machine to CNC

rabbit_nick wrote:
Mon Nov 26, 2018 7:47 am
Hello,

I uploaded a video of my CNC conversion of the ZX7016 mill and I would like to share it with you :)
https://www.youtube.com/watch?v=_mIecZtfz2g
Congrats! You made it work for your needs. Noticed you went with ball screws.
I too just jumped into the CNC milling world, with a Taig.
by WJH
Thu Nov 29, 2018 7:45 am
Forum: Home Shop CNC
Topic: Are 3D Printers Finally Practical?
Replies: 27
Views: 3318

Re: Are 3D Printers Finally Practical?

I just bought a Taig ballscrew CNC, and an Acorn. Can't wait to give it a try. As for printing stuff, try using it for actual parts.
by WJH
Mon Nov 26, 2018 10:08 pm
Forum: Live Steam
Topic: What type of Drill Rod for Axles?
Replies: 33
Views: 1756

Re: What type of Drill Rod for Axles?

I've used 1018 CR only to have it warp like a banana after each end was machined
by WJH
Fri Nov 23, 2018 6:26 pm
Forum: Home Shop CNC
Topic: Are 3D Printers Finally Practical?
Replies: 27
Views: 3318

Re: Are 3D Printers Finally Practical?

I would feel lost if I no longer had access to my Prusa i3 Mk2.5 with Bear upgrade. It is a valuable tool for unlimited things.
by WJH
Mon Nov 05, 2018 6:06 pm
Forum: Riding Scale Railroading
Topic: Brushless Motor Controller
Replies: 10
Views: 732

Re: Brushless Motor Controller

Equal the performance for this application. For R/C airplanes, brushless motors equal their IC counterparts, and even exceed them. Thrust to weight ratios that were only a dream two decades ago. But yes, for a slow moving torque hungry locomotive, their advantages aren't really needed. I think I am ...
by WJH
Mon Nov 05, 2018 2:58 pm
Forum: Riding Scale Railroading
Topic: Brushless Motor Controller
Replies: 10
Views: 732

Re: Brushless Motor Controller

I built a speeder from an electric scooter that had one of those brushless motors. The motor with two small sealed lead acid batteries could run around the GGLS track for 4.5 hours(I timed it until my butt couldn't take it anymore). Brushless motors are efficient, and have lots of torque. The motor ...
by WJH
Mon Nov 05, 2018 11:17 am
Forum: Riding Scale Railroading
Topic: Brushless Motor Controller
Replies: 10
Views: 732

Re: Brushless Motor Controller

The brushless controller, is it a re-purposed RC controller, or an industrial type? If it's for R/C, you might as well plug it into a R/C receiver and have radio control of your train. If you want to be more old fashioned about it, you can use an arduino that outputs the PWM signal it wants, and plu...
by WJH
Thu Nov 01, 2018 1:11 pm
Forum: Riding Scale Railroading
Topic: Electric motors
Replies: 7
Views: 1448

Re: Electric motors

Mr ron .. most motors apart from modern ac brushless servos have very low torque at low speeds, and usually high heat. For traction apps like a train, you do not want a high rpm motor. It is not hard to make a gearset to step down the speed, but it is VERY very very hard to make one able to deal wi...
by WJH
Wed Oct 31, 2018 11:06 am
Forum: Riding Scale Railroading
Topic: HT-C Truck Drawings
Replies: 4
Views: 2329

Re: HT-C Truck Drawings

Lacking drawings, I'd go to a museum with tape measure and camera in hand
by WJH
Tue Oct 30, 2018 8:51 am
Forum: Riding Scale Railroading
Topic: Electric motors
Replies: 7
Views: 1448

Re: Electric motors

R/C airplanes are probably my most active long standing hobby. Those brushless DC motors have an important spec you should pay close attention to, kV. It's the unloaded rpm per volt. Besides that, you have in-runners used most on boats and cars, and out runners that have less rpm and more torque, us...