1
Radio Control Models / Re: 1/16 scale Terramac RT7R
« Last post by rleete on November 19, 2025, 05:06:47 PM »This is just the prototype for the full-sized one, right?
Recent Posts
2
Radio Control Models / Re: 1/16 scale Terramac RT7R
« Last post by ddmckee54 on November 19, 2025, 12:21:34 AM »The outdoor projects are almost wrapped up, at least on the exterior. The porch roof has been replaced, and that project is weather-tight. With the exception of the overhead door the exterior of the garage is complete, and the door should be installed by the end of the week. Completing the interior of both the garage and porch will be my winter projects.
I got a little work done on the RT7R, mainly cleaning leftover support material from the drive sprockets, idlers, and all the track rollers. I 3D printed three split collets, one for the 2 drive sprockets, one for the 2 idlers, and one for the 16 track rollers. The split collets allowed me to chuck the parts in the 3 jaw on my Sherline and clean off all the external support remains.
I still have to clean out the supports in the bearing bores on all the track rollers, idlers, and sprockets. That procedure will require a different set-up, but will re-use the split collets. The current plan is to chuck an end-mill in the tailstock and use the end-mill to clean the bearing bore to the proper depth.
I've been having issues with my 3D printer, my spool of grey filament was poorly wound, and it measures undersize. I finally got through the area of the spool that was badly wound, that caused several failed prints. Two of those were failed prints damaged the teflon liner in the hot end. I thought I caught it early enough the last time, but I was mistaken. When I took the hot-end apart the liner was sticky and starting to turn black. Maybe it's time to switch to an all metal hot end?
I got a little work done on the RT7R, mainly cleaning leftover support material from the drive sprockets, idlers, and all the track rollers. I 3D printed three split collets, one for the 2 drive sprockets, one for the 2 idlers, and one for the 16 track rollers. The split collets allowed me to chuck the parts in the 3 jaw on my Sherline and clean off all the external support remains.
I still have to clean out the supports in the bearing bores on all the track rollers, idlers, and sprockets. That procedure will require a different set-up, but will re-use the split collets. The current plan is to chuck an end-mill in the tailstock and use the end-mill to clean the bearing bore to the proper depth.
I've been having issues with my 3D printer, my spool of grey filament was poorly wound, and it measures undersize. I finally got through the area of the spool that was badly wound, that caused several failed prints. Two of those were failed prints damaged the teflon liner in the hot end. I thought I caught it early enough the last time, but I was mistaken. When I took the hot-end apart the liner was sticky and starting to turn black. Maybe it's time to switch to an all metal hot end?
3
The Design Shop / Re: Scanner parts What could this be used for?
« Last post by vtsteam on November 17, 2025, 11:18:59 AM »Lack of money engenders inventiveness in the DIY area, I think. At least for some. It did for me. If you can't just go buy something, not a necessity, then making it from scrap or repairing from broken has strong appeal. Instead of bemoaning your lack of what you wish you could afford.
Thus I have 67 acres of "unbuildable" land, a house, a sawmill, a bridge, a compete metal shop, three tractors repaired from near scrap, boats, etc. etc. Really whatever I wanted badly enough was available for little cash after some thought, some learning, and physical work. These last three things were more valuable than all of the material objects they resulted in, because each led to even more capability and less dependency., and quite frankly, they make you healthier in body and mind.
Thus I have 67 acres of "unbuildable" land, a house, a sawmill, a bridge, a compete metal shop, three tractors repaired from near scrap, boats, etc. etc. Really whatever I wanted badly enough was available for little cash after some thought, some learning, and physical work. These last three things were more valuable than all of the material objects they resulted in, because each led to even more capability and less dependency., and quite frankly, they make you healthier in body and mind.
4
The Design Shop / Re: Scanner parts What could this be used for?
« Last post by BillTodd on November 17, 2025, 08:07:51 AM »No body wants to tinker with anything these days. My nephews and geat nephews (all referred to as Bonzo 'cos it's easierghan remembering their names) , all talented in their own way , just want NEW ,
They are perfect consumers ... maybe I should not have fixed their broken toys and they kight have learned themselves?
They are perfect consumers ... maybe I should not have fixed their broken toys and they kight have learned themselves?
5
The Design Shop / Re: Scanner parts What could this be used for?
« Last post by tom osselton on November 16, 2025, 06:02:46 PM »I just received a Anycubic Cobra S1 combo and bought filliment for it pay attention to the size of the rolls I have one that is about 1/2 inch bigger enough that the cover doesn?t close.
6
The Design Shop / Re: Scanner parts What could this be used for?
« Last post by awemawson on November 16, 2025, 05:51:54 PM »I too have got to the ?do I really need it?? Phase of life.
Today?s ?eviction? was a PCB chemical processing lab. A sink and six dip tanks (developer, rinse, etch, rinse, tinplate, rinse ) all neatly mounted in a free standing unit. Very handy when making a series of pcbs or brass etchings either of art work or profiles of model trains.
Tomorrow it?s space will be taken up with a new table which will hold my new (and yet to be unpacked) Bambu Labs P1s combo unit - assuming that the table arrives.
Today?s ?eviction? was a PCB chemical processing lab. A sink and six dip tanks (developer, rinse, etch, rinse, tinplate, rinse ) all neatly mounted in a free standing unit. Very handy when making a series of pcbs or brass etchings either of art work or profiles of model trains.
Tomorrow it?s space will be taken up with a new table which will hold my new (and yet to be unpacked) Bambu Labs P1s combo unit - assuming that the table arrives.
7
The Design Shop / Re: Scanner parts What could this be used for?
« Last post by vtsteam on November 16, 2025, 05:40:27 PM »I dunno, I guess because I've been saving so many things like that over the last 25 years or so, that I've come to realize I will never have time to make even a tenth of it into something useful, and so now am in the process of getting rid of stuff. Also, I've reached the point in making things that I have all of the tools needed to make anything I could imagine, right up from melting raw metal, to casting, through any kind of welding brazing soldering, blacksmithing, fabricating, operation to get to whatever it is going to be.
So the question is, what am I going to make with all this stuff? Well, probably continue on down the line of hot air engineering I've started already -- winter seems to be the time I return to metalwork, and that time is approaching again now. But I have no imagination left for tools -- which Bill, your scanner guts look like prime materials for. But in my present dull state, I can only see a lathe in it, which doesn't seem like a score of 10% on the imagination scale.
Now if I were starting out again with no tools, I'd be very excited about that possibility. I still have a little bit of wistful envy re. a gear hobbing machine, having long ago wanted to build a Jacobs after reading an old set of ME articles on it. But little about your scanner cries out "gear hobber", but maybe I'm too mentally lazy to see it now.
Things I'd really like to do, but may never achieve at the rate I'm going:
A steam powered wood splitter (nope, your scanner highly unlikely material for that)
A wood powered steam or hot air engined outboard motor
A "kitchen sink" Henry Ford engine, belted to a generator, running on wood gas
A highly roadable portable tiny houseboat
A small sailing Cape Cod style catboat
Before any of that--- get a working shop in order. And heat for it....
So the question is, what am I going to make with all this stuff? Well, probably continue on down the line of hot air engineering I've started already -- winter seems to be the time I return to metalwork, and that time is approaching again now. But I have no imagination left for tools -- which Bill, your scanner guts look like prime materials for. But in my present dull state, I can only see a lathe in it, which doesn't seem like a score of 10% on the imagination scale.
Now if I were starting out again with no tools, I'd be very excited about that possibility. I still have a little bit of wistful envy re. a gear hobbing machine, having long ago wanted to build a Jacobs after reading an old set of ME articles on it. But little about your scanner cries out "gear hobber", but maybe I'm too mentally lazy to see it now.
Things I'd really like to do, but may never achieve at the rate I'm going:
A steam powered wood splitter (nope, your scanner highly unlikely material for that)
A wood powered steam or hot air engined outboard motor
A "kitchen sink" Henry Ford engine, belted to a generator, running on wood gas
A highly roadable portable tiny houseboat
A small sailing Cape Cod style catboat
Before any of that--- get a working shop in order. And heat for it....
8
Project Logs / Re: Titivating a Wire EDM Machine
« Last post by awemawson on November 16, 2025, 05:32:32 PM »Reply #130 on 5/11/2014 in this thread (go a long way up thread !) shows me cutting a gear wheel from 6mm (or more likely 1/4?) steel clamped to the side rail.
9
Project Logs / Re: Titivating a Wire EDM Machine
« Last post by vtsteam on November 16, 2025, 05:15:44 PM »Material is clamped to the stainless rail that surounds the work area.
Can you show a pic of that?
10
Project Logs / Re: Titivating a Wire EDM Machine
« Last post by vtsteam on November 16, 2025, 05:15:08 PM »This is getting surreal Steve !
I bet that you didn?t know that Wormwood Scrubs was emptied of convicts during WW2 and was used as a base for MI5 for Military Intelligence purposes.
True Andrew, I did not!